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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-4318) Nodetool compactionstats fails with NullPointerException
Date Fri, 08 Jun 2012 03:15:23 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-4318:
--------------------------------------

    Priority: Minor  (was: Major)
    
> Nodetool compactionstats fails with NullPointerException
> --------------------------------------------------------
>
>                 Key: CASSANDRA-4318
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4318
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.1.1
>         Environment: 2 node cluster running on Ubuntu 10.10 64-bit
> 16GB Max Heap allocated to each node.
> Test keyspace using replication factor 2
>            Reporter: David B
>            Assignee: Jonathan Ellis
>            Priority: Minor
>              Labels: caching
>             Fix For: 1.1.2
>
>         Attachments: 4318.txt
>
>
> Test uses Column family C defined as follows:
> create column family C with caching = 'keys_only' and key_validation_class = 'LongType'
and compression_options = { sstable_compression: SnappyCompressor, chunk_length_kb: 64 } and
max_compaction_threshold=0; 
> max_compaction_threshold is set to 0 to disable auto compaction.
> SSTables are streamed via sstableloader, after which a major compaction is triggered
using "nodetool compact MyKeyspace C".
> Thereafter, attempts to request compaction stats via "nodetool compactionstats" fail
with the following exception:
> Exception in thread "main" java.lang.NullPointerException
>         at org.apache.cassandra.db.compaction.CompactionInfo.asMap(CompactionInfo.java:103)
>         at org.apache.cassandra.db.compaction.CompactionManager.getCompactions(CompactionManager.java:1115)
>         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 com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93)
>         at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27)
>         at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
>         at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
>         at com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
>         at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
>         at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
>         at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1404)
>         at javax.management.remote.rmi.RMIConnectionImpl.access$200(RMIConnectionImpl.java:72)
>         at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1265)
>         at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1360)
>         at javax.management.remote.rmi.RMIConnectionImpl.getAttribute(RMIConnectionImpl.java:600)
>         at sun.reflect.GeneratedMethodAccessor12.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:303)
>         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$ConnectionHandler.run(TCPTransport.java:649)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662) 

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