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Posted to users@tomcat.apache.org by Christopher Schultz <ch...@christopherschultz.net> on 2014/03/05 22:20:57 UTC
Problem with jmxproxy / Tomcat 8.0.3
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Hash: SHA256
All,
For some reason, I'm not able to access my Tomcat's JMX beans remotely
using jconsole, etc. and so I figured I'd try using the jmxproxy
servlet in the manager webapp. I've deployed the manager webapp in the
same way I've done in many other installations... I'm fairly sure I
haven't screwed it up.
I get an exception when calling an open-ended "get" (i.e. it should
dump the entire JMX tree):
$ curl -v --user jmxproxy:jmxproxy http://localhost/manager/jmxproxy?get
* Adding handle: conn: 0x7fd780804000
* Adding handle: send: 0
* Adding handle: recv: 0
* Curl_addHandleToPipeline: length: 1
* - Conn 0 (0x7fd780804000) send_pipe: 1, recv_pipe: 0
* About to connect() to localhost port 80 (#0)
* Trying ::1...
* Connected to localhost (::1) port 80 (#0)
* Server auth using Basic with user 'jmxproxy'
> GET /manager/jmxproxy?get HTTP/1.1 Authorization: Basic
> am14cHJveHk6am14cHJveHk= User-Agent: curl/7.30.0 Host: localhost
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Wed, 05 Mar 2014 20:57:59 GMT
< Cache-Control: private
< Expires: Wed, 31 Dec 1969 19:00:00 EST
< Content-Type: text/plain;charset=ISO-8859-1
< Content-Length: 3079
<
Error - javax.management.RuntimeOperationsException: Exception
occurred trying to invoke the getter on the MBean
javax.management.RuntimeOperationsException: Exception occurred trying
to invoke the getter on the MBean
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:629)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
at
org.apache.catalina.manager.JMXProxyServlet.getAttribute(JMXProxyServlet.java:128)
at
org.apache.catalina.manager.JMXProxyServlet.doGet(JMXProxyServlet.java:107)
...
...
...
Caused by: java.lang.IllegalArgumentException: Attribute cannot be null
... 32 more
* Connection #0 to host localhost left intact
[end of output]
Any idea what this might be?
I removed my own web application and launched fresh with nothing but
the manager and it's still failing. Here is the entirety of my
catalina.out after a fresh launch:
Mar 05, 2014 4:15:48 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal
performance in production environments was not found on the
java.library.path: $CATALINA_HOME/apache-tomcat-8.0.3/lib
Mar 05, 2014 4:15:48 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-nio-8225"]
Mar 05, 2014 4:15:48 PM org.apache.tomcat.util.net.NioSelectorPool
getSharedSelector
INFO: Using a shared selector for servlet write/read
Mar 05, 2014 4:15:48 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 532 ms
Mar 05, 2014 4:15:48 PM org.apache.catalina.core.StandardService
startInternal
INFO: Starting service Catalina
Mar 05, 2014 4:15:48 PM org.apache.catalina.core.StandardEngine
startInternal
INFO: Starting Servlet Engine: Apache Tomcat/8.0.3
Mar 05, 2014 4:15:48 PM org.apache.catalina.startup.HostConfig
deployDescriptor
INFO: Deploying configuration descriptor
$CATALINA_HOME/conf/Catalina/localhost/manager-c.xml
Mar 05, 2014 4:15:48 PM
org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Context/Valve} Setting property
'resolveHosts' to 'false' did not find a matching property.
Mar 05, 2014 4:15:49 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs.
Enable debug logging for this logger for a complete list of JARs that
were scanned but no TLDs were found in them. Skipping unneeded JARs
during scanning can improve startup time and JSP compilation time.
Mar 05, 2014 4:15:49 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8225"]
Mar 05, 2014 4:15:49 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 648 ms
I'm going to continue to investigate, but I thought someone might have
noticed this before.
Thanks,
- -chris
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Re: Problem with jmxproxy / Tomcat 8.0.3
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Mark,
On 3/10/14, 12:31 PM, Mark Thomas wrote:
> On 10/03/2014 16:27, Christopher Schultz wrote:
>
>> Okay. Someone should tell Tomcat that it has been removed.
>
> +1. I guess you are volunteering :)
Actually, yes. I just didn't want to break something I didn't
understand very well.
>
>> This exception is being thrown when I call "jmxproxy?qry" and
>> let it list everything available via JMX.
>
>> Is it just a matter of modifying
>> org/apache/catalina/loader/mbeans-descriptors.xml which still
>> contains a reference to it?
>
>> <attribute name="jarPath" description="The jarPath of this
>> loader" writeable="false" type="java.lang.String"/>
>
> Yes.
Thanks!
- -chris
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Re: Problem with jmxproxy / Tomcat 8.0.3
Posted by Mark Thomas <ma...@apache.org>.
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On 10/03/2014 16:27, Christopher Schultz wrote:
> Okay. Someone should tell Tomcat that it has been removed.
+1. I guess you are volunteering :)
> This exception is being thrown when I call "jmxproxy?qry" and let
> it list everything available via JMX.
>
> Is it just a matter of modifying
> org/apache/catalina/loader/mbeans-descriptors.xml which still
> contains a reference to it?
>
> <attribute name="jarPath" description="The jarPath of this
> loader" writeable="false" type="java.lang.String"/>
Yes.
Mark
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Re: Problem with jmxproxy / Tomcat 8.0.3
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Konstantin,
On 3/5/14, 5:35 PM, Konstantin Kolinko wrote:
> 2014-03-06 1:40 GMT+04:00 Christopher Schultz
> <ch...@christopherschultz.net>:
>>
>> On 3/5/14, 4:20 PM, Christopher Schultz wrote:
>>> All,
>>>
>>> For some reason, I'm not able to access my Tomcat's JMX beans
>>> remotely using jconsole, etc. and so I figured I'd try using
>>> the jmxproxy servlet in the manager webapp. I've deployed the
>>> manager webapp in the same way I've done in many other
>>> installations... I'm fairly sure I haven't screwed it up.
>>>
>>> I get an exception when calling an open-ended "get" (i.e. it
>>> should dump the entire JMX tree):
>>>
>>> $ curl -v --user jmxproxy:jmxproxy
>>> http://localhost/manager/jmxproxy?get
>>>
>>
>> There is another - legit this time - error that I can see when I
>> call ?qry:
>>
>> Mar 05, 2014 4:39:39 PM org.apache.catalina.mbeans.MBeanDumper
>> dumpBeans SEVERE: Error getting attribute
>> Catalina:type=WebappClassLoader,host=localhost,context=/manager
>> jarPath javax.management.ReflectionException: Cannot find getter
>> method getJarPath
>
>
> There was WebappClassLoader.getJarPath() method in Tomcat 7. It
> was removed from TC8.
Okay. Someone should tell Tomcat that it has been removed. This
exception is being thrown when I call "jmxproxy?qry" and let it list
everything available via JMX.
Is it just a matter of modifying
org/apache/catalina/loader/mbeans-descriptors.xml which still contains
a reference to it?
<attribute name="jarPath"
description="The jarPath of this loader"
writeable="false"
type="java.lang.String"/>
Thanks,
- -chris
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Re: Problem with jmxproxy / Tomcat 8.0.3
Posted by Konstantin Kolinko <kn...@gmail.com>.
2014-03-06 1:40 GMT+04:00 Christopher Schultz <ch...@christopherschultz.net>:
>
> On 3/5/14, 4:20 PM, Christopher Schultz wrote:
>> All,
>>
>> For some reason, I'm not able to access my Tomcat's JMX beans
>> remotely using jconsole, etc. and so I figured I'd try using the
>> jmxproxy servlet in the manager webapp. I've deployed the manager
>> webapp in the same way I've done in many other installations... I'm
>> fairly sure I haven't screwed it up.
>>
>> I get an exception when calling an open-ended "get" (i.e. it
>> should dump the entire JMX tree):
>>
>> $ curl -v --user jmxproxy:jmxproxy
>> http://localhost/manager/jmxproxy?get
>>
>
> There is another - legit this time - error that I can see when I call
> ?qry:
>
> Mar 05, 2014 4:39:39 PM org.apache.catalina.mbeans.MBeanDumper dumpBeans
> SEVERE: Error getting attribute
> Catalina:type=WebappClassLoader,host=localhost,context=/manager jarPath
> javax.management.ReflectionException: Cannot find getter method getJarPath
There was WebappClassLoader.getJarPath() method in Tomcat 7. It was
removed from TC8.
> at
> org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:461)
> at
> org.apache.tomcat.util.modeler.BaseModelMBean.getAttribute(BaseModelMBean.java:180)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
> at
> com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
>
> I'm not sure why this would be happening... could be mismatch with
> mbeans-descriptor? I'll investigate this one, too.
>
> - -chris
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Re: Problem with jmxproxy / Tomcat 8.0.3
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
All,
On 3/5/14, 4:20 PM, Christopher Schultz wrote:
> All,
>
> For some reason, I'm not able to access my Tomcat's JMX beans
> remotely using jconsole, etc. and so I figured I'd try using the
> jmxproxy servlet in the manager webapp. I've deployed the manager
> webapp in the same way I've done in many other installations... I'm
> fairly sure I haven't screwed it up.
>
> I get an exception when calling an open-ended "get" (i.e. it
> should dump the entire JMX tree):
>
> $ curl -v --user jmxproxy:jmxproxy
> http://localhost/manager/jmxproxy?get
>
> * Adding handle: conn: 0x7fd780804000 * Adding handle: send: 0 *
> Adding handle: recv: 0 * Curl_addHandleToPipeline: length: 1 * -
> Conn 0 (0x7fd780804000) send_pipe: 1, recv_pipe: 0 * About to
> connect() to localhost port 80 (#0) * Trying ::1... * Connected
> to localhost (::1) port 80 (#0) * Server auth using Basic with user
> 'jmxproxy'
>> GET /manager/jmxproxy?get HTTP/1.1 Authorization: Basic
>> am14cHJveHk6am14cHJveHk= User-Agent: curl/7.30.0 Host: localhost
>> Accept: */*
>
> < HTTP/1.1 200 OK < Date: Wed, 05 Mar 2014 20:57:59 GMT <
> Cache-Control: private < Expires: Wed, 31 Dec 1969 19:00:00 EST <
> Content-Type: text/plain;charset=ISO-8859-1 < Content-Length: 3079
> < Error - javax.management.RuntimeOperationsException: Exception
> occurred trying to invoke the getter on the MBean
> javax.management.RuntimeOperationsException: Exception occurred
> trying to invoke the getter on the MBean at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:629)
>
>
at
> com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
>
>
at
> org.apache.catalina.manager.JMXProxyServlet.getAttribute(JMXProxyServlet.java:128)
>
>
at
> org.apache.catalina.manager.JMXProxyServlet.doGet(JMXProxyServlet.java:107)
>
>
...
> ... ... Caused by: java.lang.IllegalArgumentException: Attribute
> cannot be null ... 32 more * Connection #0 to host localhost left
> intact [end of output]
>
> Any idea what this might be?
>
> I removed my own web application and launched fresh with nothing
> but the manager and it's still failing. Here is the entirety of my
> catalina.out after a fresh launch:
>
> Mar 05, 2014 4:15:48 PM
> org.apache.catalina.core.AprLifecycleListener init INFO: The APR
> based Apache Tomcat Native library which allows optimal performance
> in production environments was not found on the java.library.path:
> $CATALINA_HOME/apache-tomcat-8.0.3/lib Mar 05, 2014 4:15:48 PM
> org.apache.coyote.AbstractProtocol init INFO: Initializing
> ProtocolHandler ["ajp-nio-8225"] Mar 05, 2014 4:15:48 PM
> org.apache.tomcat.util.net.NioSelectorPool getSharedSelector INFO:
> Using a shared selector for servlet write/read Mar 05, 2014 4:15:48
> PM org.apache.catalina.startup.Catalina load INFO: Initialization
> processed in 532 ms Mar 05, 2014 4:15:48 PM
> org.apache.catalina.core.StandardService startInternal INFO:
> Starting service Catalina Mar 05, 2014 4:15:48 PM
> org.apache.catalina.core.StandardEngine startInternal INFO:
> Starting Servlet Engine: Apache Tomcat/8.0.3 Mar 05, 2014 4:15:48
> PM org.apache.catalina.startup.HostConfig deployDescriptor INFO:
> Deploying configuration descriptor
> $CATALINA_HOME/conf/Catalina/localhost/manager-c.xml Mar 05, 2014
> 4:15:48 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
> WARNING: [SetPropertiesRule]{Context/Valve} Setting property
> 'resolveHosts' to 'false' did not find a matching property. Mar 05,
> 2014 4:15:49 PM org.apache.jasper.servlet.TldScanner scanJars INFO:
> At least one JAR was scanned for TLDs yet contained no TLDs. Enable
> debug logging for this logger for a complete list of JARs that were
> scanned but no TLDs were found in them. Skipping unneeded JARs
> during scanning can improve startup time and JSP compilation time.
> Mar 05, 2014 4:15:49 PM org.apache.coyote.AbstractProtocol start
> INFO: Starting ProtocolHandler ["ajp-nio-8225"] Mar 05, 2014
> 4:15:49 PM org.apache.catalina.startup.Catalina start INFO: Server
> startup in 648 ms
>
> I'm going to continue to investigate, but I thought someone might
> have noticed this before.
So, I'm stupid: the command to dump everything is "?qry", not "get".
Getting an error like this is no fun, though. I think I'll fix that.
There is another - legit this time - error that I can see when I call
?qry:
Mar 05, 2014 4:39:39 PM org.apache.catalina.mbeans.MBeanDumper dumpBeans
SEVERE: Error getting attribute
Catalina:type=WebappClassLoader,host=localhost,context=/manager jarPath
javax.management.ReflectionException: Cannot find getter method getJarPath
at
org.apache.tomcat.util.modeler.ManagedBean.getGetter(ManagedBean.java:461)
at
org.apache.tomcat.util.modeler.BaseModelMBean.getAttribute(BaseModelMBean.java:180)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
I'm not sure why this would be happening... could be mismatch with
mbeans-descriptor? I'll investigate this one, too.
- -chris
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