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https://issues.apache.org/jira/browse/HADOOP-8389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Luke Lu resolved HADOOP-8389.
-----------------------------
Resolution: Fixed
Fix Version/s: 1.0.0
0.23.0
2.0.0-alpha
Apache Hadoop 1.0+ uses metrics2, which doesn't use MetricsDynamicMBeanBase.
> MetricsDynamicMBeanBase throws IllegalArgumentException for empty attribute
> list
> --------------------------------------------------------------------------------
>
> Key: HADOOP-8389
> URL: https://issues.apache.org/jira/browse/HADOOP-8389
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Reporter: Elias Ross
> Fix For: 2.0.0-alpha, 0.23.0, 1.0.0
>
>
> MetricsDynamicMBeanBase.java
> @Override
> public AttributeList getAttributes(String[] attributeNames) {
> if (attributeNames == null || attributeNames.length == 0)
> throw new IllegalArgumentException();
>
> The second clause isn't necessary.
> There's some code used by management software (RHQ) that occasionally will
> query with an empty list.
> Here is the stack trace.
> Caused by: java.lang.IllegalArgumentException
> at
> org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase.getAttributes(MetricsDynamicMBeanBase.java:173)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttributes(DefaultMBeanServerInterceptor.java:726)
> at
> com.sun.jmx.mbeanserver.JmxMBeanServer.getAttributes(JmxMBeanServer.java:665)
> at
> javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1407)
> at
> javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
> at
> javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1264)
> at
> javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1359)
> at
> javax.management.remote.rmi.RMIConnectionImpl.getAttributes(RMIConnectionImpl.java:636)
> at sun.reflect.GeneratedMethodAccessor49.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
> at sun.rmi.transport.Transport$1.run(Transport.java:159)
> at java.security.AccessController.doPrivileged(Native Method)
> at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
> at
> sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
> at
> sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
> ... 3 more
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