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Posted to dev@tomcat.apache.org by bu...@apache.org on 2012/03/07 00:33:46 UTC
DO NOT REPLY [Bug 52842] New: MBeanDumper dumpBeans SEVERE: Error
getting attribute while using JMXProxy servlet
https://issues.apache.org/bugzilla/show_bug.cgi?id=52842
Bug #: 52842
Summary: MBeanDumper dumpBeans SEVERE: Error getting attribute
while using JMXProxy servlet
Product: Tomcat 7
Version: 7.0.26
Platform: PC
OS/Version: Windows Vista
Status: NEW
Severity: minor
Priority: P2
Component: Manager
AssignedTo: dev@tomcat.apache.org
ReportedBy: hodgesz@gmail.com
Classification: Unclassified
Hi,
We have been using the following two JMXProxy URLs for monitoring without issue
in 6.0.29.
http://localhost:8080/manager/jmxproxy/?qry=*:type=Executor,name=tomcatThreadPool
OK - Number of results: 1
Name: Catalina:type=Executor,name=tomcatThreadPool
modelerType: org.apache.tomcat.util.modeler.BaseModelMBean
threadPriority: 5
queueSize: 0
corePoolSize: 4
maxIdleTime: 60000
threadRenewalDelay: 1000
minSpareThreads: 4
activeCount: 1
maxThreads: 150
completedTaskCount: 17
maxQueueSize: 2147483647
largestPoolSize: 5
stateName: STARTED
name: tomcatThreadPool
poolSize: 3
namePrefix: catalina-exec-
http://localhost:8080/manager/jmxproxy/?qry=bean:name=eventingDataSource
OK - Number of results: 1
Name: bean:name=eventingDataSource
modelerType: org.apache.tomcat.jdbc.pool.DataSource
MaxIdle: 100
JdbcInterceptors:
org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer
DefaultTransactionIsolation: -1
ValidationQuery: SELECT 1 FROM dual
TestOnConnect: false
Password: Password not available as DataSource/JMX operation.
AbandonWhenPercentageFull: 0
TestOnReturn: false
Username: xxxx
NumActive: 0
MinIdle: 10
PoolSize: 4
ValidationInterval: 1800000
Connection:
ProxyConnection[PooledConnection[oracle.jdbc.driver.T4CConnection@17f8b39]]
NumIdle: 2
AccessToUnderlyingConnectionAllowed: true
Url: jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST =
localhost)(PORT = 1580))(CONNECT_DATA =(SERVER = DEDICATED)( SERVICE_NAME =
anywhere.com )(INSTANCE_NAME = xxx)(SID = xxx)))
Size: 4
Active: 2
AlternateUsernameAllowed: false
TestOnBorrow: true
LoginTimeout: 6
MaxActive: 100
MaxAge: 0
SuspectTimeout: 0
Pool: org.apache.tomcat.jdbc.pool.ConnectionPool@9283bf
NumTestsPerEvictionRun: 0
Name: Tomcat Connection Pool[1-6300663]
MaxWait: 6000
PoolProperties: ConnectionPool[defaultAutoCommit=null; defaultReadOnly=null;
defaultTransactionIsolation=-1; defaultCatalog=null;
driverClassName=oracle.jdbc.driver.OracleDriver; maxActive=100; maxIdle=100;
minIdle=10; initialSize=10; maxWait=6000; testOnBorrow=true;
testOnReturn=false; timeBetweenEvictionRunsMillis=30000;
numTestsPerEvictionRun=0; minEvictableIdleTimeMillis=30000;
testWhileIdle=false; testOnConnect=false; password=xxxxx;
url=jdbc:oracle:thin:@(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST =
localhost)(PORT = 1580))(CONNECT_DATA =(SERVER = DEDICATED)( SERVICE_NAME =
anywhere.com )(INSTANCE_NAME = xxx)(SID = xxx))); username=xxx;
validationQuery=SELECT 1 FROM dual; validationInterval=1800000;
accessToUnderlyingConnectionAllowed=true; removeAbandoned=true;
removeAbandonedTimeout=60; logAbandoned=true; connectionProperties=null;
initSQL=null;
jdbcInterceptors=org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer;
jmxEnabled=true; fairQueue=false; useEquals=false; abandonWhenPercentageFull=0;
maxAge=0; useLock=false; dataSource=null; dataSourceJNDI=null;
alternateUsernameAllowed=false;
PoolName: Tomcat Connection Pool[1-6300663]
WaitCount: 0
JmxEnabled: true
TestWhileIdle: false
UseEquals: false
UseLock: false
DriverClassName: oracle.jdbc.driver.OracleDriver
RemoveAbandonedTimeout: 60
DbProperties: {user=xxxx, password=xxxx}
Idle: 2
LogAbandoned: true
FairQueue: false
PoolSweeperEnabled: true
ConnectionAsync:
org.apache.tomcat.jdbc.pool.ConnectionPool$ConnectionFuture@e9c2d3
JdbcInterceptorsAsArray:
Array[org.apache.tomcat.jdbc.pool.PoolProperties$InterceptorDefinition] of
length 2
org.apache.tomcat.jdbc.pool.PoolProperties$InterceptorDefinition@125f027
org.apache.tomcat.jdbc.pool.PoolProperties$InterceptorDefinition@1b99628
RemoveAbandoned: true
TimeBetweenEvictionRunsMillis: 30000
MinEvictableIdleTimeMillis: 30000
InitialSize: 10
After upgrading to 7.0.26 the JMXProxy URLs still return the correct data
however I am now seeing the following exceptions in the Tomcat logs.
Mar 6, 2012 9:17:40 AM org.apache.catalina.mbeans.MBeanDumper dumpBeans
SEVERE: Error getting attribute Catalina:type=Executor,name=tomcatThreadPool
prestartminSpareThreads
javax.management.ReflectionException: Cannot find getter method
getPrestartminSpareThreads
at
org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:517)
at
org.apache.tomcat.util.modeler.BaseModelMBean.getAttribute(BaseModelMBean.java:181)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at
org.apache.catalina.mbeans.MBeanDumper.dumpBeans(MBeanDumper.java:82)
at
org.apache.catalina.manager.JMXProxyServlet.listBeans(JMXProxyServlet.java:172)
at
org.apache.catalina.manager.JMXProxyServlet.doGet(JMXProxyServlet.java:121)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NoSuchMethodException:
org.apache.catalina.core.StandardThreadExecutor.getPrestartminSpareThreads()
at java.lang.Class.getMethod(Class.java:1605)
at
org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:510)
... 27 more
Mar 6, 2012 9:17:40 AM org.apache.catalina.mbeans.MBeanDumper dumpBeans
SEVERE: Error getting attribute Catalina:type=Executor,name=tomcatThreadPool
daemon
javax.management.ReflectionException: Cannot find getter method getDaemon
at
org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:517)
at
org.apache.tomcat.util.modeler.BaseModelMBean.getAttribute(BaseModelMBean.java:181)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at
org.apache.catalina.mbeans.MBeanDumper.dumpBeans(MBeanDumper.java:82)
at
org.apache.catalina.manager.JMXProxyServlet.listBeans(JMXProxyServlet.java:172)
at
org.apache.catalina.manager.JMXProxyServlet.doGet(JMXProxyServlet.java:121)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NoSuchMethodException:
org.apache.catalina.core.StandardThreadExecutor.getDaemon()
at java.lang.Class.getMethod(Class.java:1605)
at
org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:510)
... 27 more
Mar 6, 2012 9:18:20 AM org.apache.catalina.mbeans.MBeanDumper dumpBeans
SEVERE: Error getting attribute bean:name=eventingDataSource PooledConnection
javax.management.MBeanException: RuntimeException thrown in RequiredModelMBean
while trying to invoke operation getPooledConnection
at
javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1091)
at
javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:955)
at
org.springframework.jmx.export.SpringModelMBean.invoke(SpringModelMBean.java:90)
at
javax.management.modelmbean.RequiredModelMBean.getAttribute(RequiredModelMBean.java:1358)
at
org.springframework.jmx.export.SpringModelMBean.getAttribute(SpringModelMBean.java:109)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at
org.apache.catalina.mbeans.MBeanDumper.dumpBeans(MBeanDumper.java:82)
at
org.apache.catalina.manager.JMXProxyServlet.listBeans(JMXProxyServlet.java:172)
at
org.apache.catalina.manager.JMXProxyServlet.doGet(JMXProxyServlet.java:121)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException: $Proxy5 cannot be cast to
org.apache.tomcat.jdbc.pool.PooledConnection
at
org.apache.tomcat.jdbc.pool.DataSourceProxy.getPooledConnection(DataSourceProxy.java:156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:37)
at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:244)
at
javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1074)
... 30 more
Mar 6, 2012 9:18:22 AM org.apache.catalina.mbeans.MBeanDumper dumpBeans
SEVERE: Error getting attribute bean:name=eventingDataSource XAConnection
javax.management.MBeanException: Exception thrown in RequiredModelMBean while
trying to invoke operation getXAConnection
at
javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1101)
at
javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:955)
at
org.springframework.jmx.export.SpringModelMBean.invoke(SpringModelMBean.java:90)
at
javax.management.modelmbean.RequiredModelMBean.getAttribute(RequiredModelMBean.java:1358)
at
org.springframework.jmx.export.SpringModelMBean.getAttribute(SpringModelMBean.java:109)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at
org.apache.catalina.mbeans.MBeanDumper.dumpBeans(MBeanDumper.java:82)
at
org.apache.catalina.manager.JMXProxyServlet.listBeans(JMXProxyServlet.java:172)
at
org.apache.catalina.manager.JMXProxyServlet.doGet(JMXProxyServlet.java:121)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.sql.SQLException: Connection from pool does not implement
javax.sql.XAConnection
at
org.apache.tomcat.jdbc.pool.DataSourceProxy.getXAConnection(DataSourceProxy.java:134)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:37)
at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:244)
at
javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1074)
... 30 more
The documentation mentioned the JMXProxy interface should remain the same
during this upgrade so we are a little confused with the exceptions. To add a
little more detail we have enabled all the new Manager roles while we test this
issue.
<role rolename="admin-gui"/>
<role rolename="admin-script"/>
<role rolename="manager-gui"/>
<role rolename="manager-script"/>
<role rolename="manager-jmx"/>
<role rolename="manager-status"/>
<user username="xxxx" password="xxxx"
roles="admin-gui,admin-script,manager-gui,manager-script,manager-jmx,manager-status"/>
Any ideas?
Thanks in advance,
Jonathan
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DO NOT REPLY [Bug 52842] MBeanDumper dumpBeans SEVERE: Error getting
attribute while using JMXProxy servlet
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52842
--- Comment #3 from Jonathan Hodges <ho...@gmail.com> 2012-03-07 02:17:27 UTC ---
Will this fix the other following exception concerning objects exposed with the
org.springframework.jmx.export.MBeanExporter?
Mar 6, 2012 9:18:20 AM org.apache.catalina.mbeans.MBeanDumper dumpBeans
SEVERE: Error getting attribute bean:name=eventingDataSource PooledConnection
javax.management.MBeanException: RuntimeException thrown in RequiredModelMBean
while trying to invoke operation getPooledConnection
at
javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1091)
at
javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:955)
at
org.springframework.jmx.export.SpringModelMBean.invoke(SpringModelMBean.java:90)
at
javax.management.modelmbean.RequiredModelMBean.getAttribute(RequiredModelMBean.java:1358)
at
org.springframework.jmx.export.SpringModelMBean.getAttribute(SpringModelMBean.java:109)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
at
org.apache.catalina.mbeans.MBeanDumper.dumpBeans(MBeanDumper.java:82)
at
org.apache.catalina.manager.JMXProxyServlet.listBeans(JMXProxyServlet.java:172)
at
org.apache.catalina.manager.JMXProxyServlet.doGet(JMXProxyServlet.java:121)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
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DO NOT REPLY [Bug 52842] MBeanDumper dumpBeans SEVERE: Error getting
attribute while using JMXProxy servlet
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52842
Rainer Jung <ra...@kippdata.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #2 from Rainer Jung <ra...@kippdata.de> 2012-03-07 01:13:55 UTC ---
For most MBeans there's a descriptor defining how the MBean attributes relate
to the members of the base objects. For the StandardThreadExecutor there was a
bug in this descriptor, so that the MBean dumper tried to retrieve the boolean
prestartminSpareThreads using a "get" getter instead of an "is" getter.
The attribute didn't exist in 6.0 so that's why there's no exception for 6.0.
Fixed now in trunk by r1297818 and 7.0 by r1297820.
Will be part of TC 7.0.27.
Thanks for the detailed report.
Regards,
Rainer
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DO NOT REPLY [Bug 52842] MBeanDumper dumpBeans SEVERE: Error getting
attribute while using JMXProxy servlet
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52842
--- Comment #1 from Jonathan Hodges <ho...@gmail.com> 2012-03-06 23:58:42 UTC ---
This also appears on HP hardware with RHEL on both 32-bit and 64-bit Sun JVMs.
We are using the APR Native Tomcat library with a Executor thread pool.
As I mentioned before JMXProxy still returns the data correctly and the server
appears to be unimpacted by the exceptions.
They are really just a nuisance and red herrings for the server guys.
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DO NOT REPLY [Bug 52842] MBeanDumper dumpBeans SEVERE: Error getting
attribute while using JMXProxy servlet
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52842
--- Comment #5 from Christopher Schultz <ch...@christopherschultz.net> 2012-03-08 19:17:39 UTC ---
(In reply to comment #4)
> Since the Tomcat JDBC pool is part of Tomcat 7 is there a better way to view
> the pool properties through JMX than exposing through the Spring MBeanExporter?
While the pool is properly part of Tomcat 7, I believe there's no reason it
wasn't be used with Tomcat 6 (but I haven't tried it).
I think you've mentioned using the JMXProxyServlet... is that an acceptable
alternative?
If you have further questions, please use the users' list instead of BZ.
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DO NOT REPLY [Bug 52842] MBeanDumper dumpBeans SEVERE: Error getting
attribute while using JMXProxy servlet
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=52842
--- Comment #4 from Jonathan Hodges <ho...@gmail.com> 2012-03-08 02:17:35 UTC ---
Since the Tomcat JDBC pool is part of Tomcat 7 is there a better way to view
the pool properties through JMX than exposing through the Spring MBeanExporter?
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