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Posted to common-issues@hadoop.apache.org by "Andy Isaacson (JIRA)" <ji...@apache.org> on 2012/05/30 03:25:22 UTC

[jira] [Created] (HADOOP-8447) DN logs backtrace when running under jsvc and /jmx is loaded

Andy Isaacson created HADOOP-8447:
-------------------------------------

             Summary: DN logs backtrace when running under jsvc and /jmx is loaded
                 Key: HADOOP-8447
                 URL: https://issues.apache.org/jira/browse/HADOOP-8447
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 2.0.0-alpha
            Reporter: Andy Isaacson
            Assignee: Andy Isaacson
            Priority: Minor


Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.

Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:

12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
12272 
12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
12293         at org.mortbay.jetty.Server.handle(Server.java:326)
12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
12302 
12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
12306         at java.lang.reflect.Method.invoke(Method.java:597)
12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
12315         ... 25 more

we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13285956#comment-13285956 ] 

Hadoop QA commented on HADOOP-8452:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12530257/hadoop-8447-2.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    -1 core tests.  The patch failed these unit tests in hadoop-common-project/hadoop-common:

                  org.apache.hadoop.fs.viewfs.TestViewFsTrash

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1058//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1058//console

This message is automatically generated.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Moved] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Eli Collins (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eli Collins moved HDFS-3473 to HADOOP-8452:
-------------------------------------------

     Target Version/s:   (was: 2.0.1-alpha)
    Affects Version/s:     (was: 2.0.0-alpha)
                       2.0.0-alpha
                  Key: HADOOP-8452  (was: HDFS-3473)
              Project: Hadoop Common  (was: Hadoop HDFS)
    
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Closed] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Arun C Murthy (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy closed HADOOP-8452.
---------------------------------

    
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>             Fix For: 3.0.0, 2.0.2-alpha
>
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287335#comment-13287335 ] 

Hudson commented on HADOOP-8452:
--------------------------------

Integrated in Hadoop-Hdfs-trunk #1063 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1063/])
    HADOOP-8452. DN logs backtrace when running under jsvc and /jmx is loaded (Andy Isaacson via bobby) (Revision 1344733)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1344733
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/jmx/JMXJsonServlet.java

                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>             Fix For: 2.0.1-alpha, 3.0.0
>
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286642#comment-13286642 ] 

Hudson commented on HADOOP-8452:
--------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #2321 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2321/])
    HADOOP-8452. DN logs backtrace when running under jsvc and /jmx is loaded (Andy Isaacson via bobby) (Revision 1344733)

     Result = FAILURE
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1344733
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/jmx/JMXJsonServlet.java

                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>             Fix For: 2.0.1-alpha, 3.0.0
>
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8447) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Andy Isaacson (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Isaacson updated HADOOP-8447:
----------------------------------

    Status: Patch Available  (was: Open)
    
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8447
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8447
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13285921#comment-13285921 ] 

Hadoop QA commented on HADOOP-8452:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12530240/hadoop-8447.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    -1 javac.  The patch appears to cause the build to fail.

Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1057//console

This message is automatically generated.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286595#comment-13286595 ] 

Hudson commented on HADOOP-8452:
--------------------------------

Integrated in Hadoop-Common-trunk-Commit #2304 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2304/])
    HADOOP-8452. DN logs backtrace when running under jsvc and /jmx is loaded (Andy Isaacson via bobby) (Revision 1344733)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1344733
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/jmx/JMXJsonServlet.java

                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>             Fix For: 2.0.1-alpha, 3.0.0
>
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Robert Joseph Evans (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Joseph Evans updated HADOOP-8452:
----------------------------------------

       Resolution: Fixed
    Fix Version/s: 3.0.0
                   2.0.1-alpha
           Status: Resolved  (was: Patch Available)

Thanks Andy,

I checked this into trunk and branch-2.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>             Fix For: 2.0.1-alpha, 3.0.0
>
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286602#comment-13286602 ] 

Hudson commented on HADOOP-8452:
--------------------------------

Integrated in Hadoop-Hdfs-trunk-Commit #2376 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2376/])
    HADOOP-8452. DN logs backtrace when running under jsvc and /jmx is loaded (Andy Isaacson via bobby) (Revision 1344733)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1344733
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/jmx/JMXJsonServlet.java

                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>             Fix For: 2.0.1-alpha, 3.0.0
>
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Andy Isaacson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286063#comment-13286063 ] 

Andy Isaacson commented on HADOOP-8452:
---------------------------------------

Robert,

Thanks for offering to commit the patch!  I've reuploaded it with the license grant checked.

Also, just to be completely clear -- the TestViewFsTrash regression does not appear to be related to my patch; and I didn't add a regression test due to the difficulty of testing a kernel-dependent failure.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8447) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Andy Isaacson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13285318#comment-13285318 ] 

Andy Isaacson commented on HADOOP-8447:
---------------------------------------

With this proposed fix, the JMX json contains the following:

{code}
...
    "MaxFileDescriptorCount" : 32768,
    "OpenFileDescriptorCount" : null,
...
{code}

I'm not completely sure that "null" appearing here is kosher.  Any feedback appreciated.

                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8447
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8447
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8447) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Andy Isaacson (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Isaacson updated HADOOP-8447:
----------------------------------

    Attachment: 95db1fa.txt

Proposed fix.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8447
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8447
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Robert Joseph Evans (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286584#comment-13286584 ] 

Robert Joseph Evans commented on HADOOP-8452:
---------------------------------------------

+1 yes TestViewFsTrash has been failing intermittently for some time.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287419#comment-13287419 ] 

Hudson commented on HADOOP-8452:
--------------------------------

Integrated in Hadoop-Mapreduce-trunk #1097 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1097/])
    HADOOP-8452. DN logs backtrace when running under jsvc and /jmx is loaded (Andy Isaacson via bobby) (Revision 1344733)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1344733
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/jmx/JMXJsonServlet.java

                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>             Fix For: 2.0.1-alpha, 3.0.0
>
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Andy Isaacson (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Isaacson updated HADOOP-8452:
----------------------------------

    Attachment: hadoop-8447-2.patch

Re-uploading patch with license grant ticked.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Robert Joseph Evans (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Joseph Evans updated HADOOP-8452:
----------------------------------------

    Status: Open  (was: Patch Available)

Andy, The patch looks good and I would like to commit it, but I need you to upload the patch again, and this time click the button marked "Grant license to ASF for inclusion in ASF works..."  Otherwise I cannot check it in. 
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Andy Isaacson (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Isaacson updated HADOOP-8452:
----------------------------------

    Attachment: hadoop-8447-2.patch

Previous patch failed to compile because the import was in a different git commit (with my testing code).
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Eli Collins (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eli Collins updated HADOOP-8452:
--------------------------------

    Target Version/s: 2.0.1-alpha
    
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8447) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13285323#comment-13285323 ] 

Hadoop QA commented on HADOOP-8447:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12530137/95db1fa.txt
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    -1 javac.  The patch appears to cause the build to fail.

Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1054//console

This message is automatically generated.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8447
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8447
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Commented] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13286087#comment-13286087 ] 

Hadoop QA commented on HADOOP-8452:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12530271/hadoop-8447-2.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed unit tests in hadoop-common-project/hadoop-common.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/1060//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/1060//console

This message is automatically generated.
                
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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[jira] [Updated] (HADOOP-8452) DN logs backtrace when running under jsvc and /jmx is loaded

Posted by "Andy Isaacson (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HADOOP-8452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Isaacson updated HADOOP-8452:
----------------------------------

    Status: Patch Available  (was: Open)
    
> DN logs backtrace when running under jsvc and /jmx is loaded
> ------------------------------------------------------------
>
>                 Key: HADOOP-8452
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8452
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>            Priority: Minor
>         Attachments: 95db1fa.txt, hadoop-8447-2.patch, hadoop-8447-2.patch, hadoop-8447.patch
>
>
> Running the data node under jsvc and requesting /jmx falls victim to a kernel bug http://marc.info/?l=linux-kernel&m=133788505209725&w=2 which results in EACCES when open()ing /proc/self/fd to attempt to count the open filedescriptors.
> Hopefully someday we will have kernels with this bug fixed; in the meantime, the log spew which results is unpleasant:
> 12270 2012-05-15 21:04:41,683 ERROR org.apache.hadoop.jmx.JMXJsonServlet: getting attribute OpenFileDescriptorCount of java.lang:type=OperatingSystem threw an exception
> 12271 javax.management.RuntimeErrorException: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12272 
> 12273         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
> 12274         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
> 12275         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
> 12276         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
> 12277         at org.apache.hadoop.jmx.JMXJsonServlet.writeAttribute(JMXJsonServlet.java:314)
> 12278         at org.apache.hadoop.jmx.JMXJsonServlet.listBeans(JMXJsonServlet.java:292)
> 12279         at org.apache.hadoop.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:192)
> 12280         at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> 12281         at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> 12282         at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> 12283         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
> 12284         at org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:932)
> 12285         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> 12286         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> 12287         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> 12288         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> 12289         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> 12290         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> 12291         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> 12292         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> 12293         at org.mortbay.jetty.Server.handle(Server.java:326)
> 12294         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> 12295         at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> 12296         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> 12297         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> 12298         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> 12299         at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> 12300         at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> 12301 Caused by: java.lang.InternalError: errno: 13 error: Unable to open directory /proc/self/fd
> 12302 
> 12303         at com.sun.management.UnixOperatingSystem.getOpenFileDescriptorCount(Native Method)
> 12304         at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source)
> 12305         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 12306         at java.lang.reflect.Method.invoke(Method.java:597)
> 12307         at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
> 12308         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
> 12309         at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
> 12310         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
> 12311         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
> 12312         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
> 12313         at javax.management.StandardMBean.getAttribute(StandardMBean.java:358)
> 12314         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
> 12315         ... 25 more
> we should catch the RuntimeErrorException and make it a debug().

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