Comments (4)
ngzhian
commented on August 25, 2024
This seems to be possible by calling ManagementFactory.getPlatformMBeanServer(); to get a MBeanServer, and calling the queryMBeans method, passing in the null argument:
When the object name is null or no domain and key properties are specified, all objects are to be selected (and filtered if a query is specified). It returns the set of ObjectInstance objects (containing the ObjectName and the Java Class name) for the selected MBeans.
Then we can iterate through to generate the sample XML configuration entries.
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ngzhian
commented on August 25, 2024
@dpocock this issue can probably be closed, thanks!
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dpocock
commented on August 25, 2024
I try to run the MBeanScanner like this:
$ mvn exec:java -Dexec.mainClass=info.ganglia.jmxetric.MBeanScanner
and it fails like this:
[WARNING] Warning: killAfter is now deprecated. Do you need it ? Please comment on MEXEC-6.
[WARNING]
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
at java.lang.Thread.run(Thread.java:745)
Caused by: javax.management.RuntimeMBeanException: java.lang.UnsupportedOperationException: Usage threshold is not supported
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:852)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:651)
at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
at info.ganglia.jmxetric.MBeanScanner.makeConfigMBeanAttribute(MBeanScanner.java:145)
at info.ganglia.jmxetric.MBeanScanner.scanMBeanAttributes(MBeanScanner.java:119)
at info.ganglia.jmxetric.MBeanScanner.scanOneMBeanObject(MBeanScanner.java:99)
at info.ganglia.jmxetric.MBeanScanner.getConfigForAllMBeans(MBeanScanner.java:80)
at info.ganglia.jmxetric.MBeanScanner.scan(MBeanScanner.java:67)
at info.ganglia.jmxetric.MBeanScanner.main(MBeanScanner.java:55)
... 6 more
Caused by: java.lang.UnsupportedOperationException: Usage threshold is not supported
at sun.management.MemoryPoolImpl.getUsageThreshold(MemoryPoolImpl.java:106)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:75)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:279)
at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:193)
at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:175)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:117)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:54)
at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:83)
at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:206)
at javax.management.StandardMBean.getAttribute(StandardMBean.java:372)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:647)
... 13 more
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.975s
[INFO] Finished at: Sun Aug 17 13:34:02 CEST 2014
[INFO] Final Memory: 14M/362M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.3.2:java (default-cli) on project jmxetric: An exception occured while executing the Java class. null: InvocationTargetException: java.lang.UnsupportedOperationException: Usage threshold is not supported -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
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dpocock
commented on August 25, 2024
I added a catch block for that exception in commit de4f717
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