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Posted to user@cassandra.apache.org by "sj.climber" <sj...@gmail.com> on 2012/06/07 01:49:32 UTC
NullPointerException when requesting compactionstats through
nodetool
Hi,
I'm currently testing a 2-node 1.1.1 cluster with replication factor set to
2. I have a column family C with the following definition:
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 automatic compression.
After streaming sstables through cassandra/bin/sstableloader, I force a
major compaction using "nodetool -h host1 compact MyKeyspace C".
Looking at the data file directory, it's clear that the major compaction is
progressing. However, I am unable to get stats on the compaction. More
specifically, "nodetool -h host1 compactionstats" yields the following
NullPointerException.
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)
Ideas? Thanks in advance!
--
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Re: NullPointerException when requesting compactionstats through nodetool
Posted by Sylvain Lebresne <sy...@datastax.com>.
On Thu, Jun 7, 2012 at 1:49 AM, sj.climber <sj...@gmail.com> wrote:
> Looking at the data file directory, it's clear that the major compaction is
> progressing. However, I am unable to get stats on the compaction. More
> specifically, "nodetool -h host1 compactionstats" yields the following
> NullPointerException.
Obviously, that shouldn't happen so that's a bug. Would you mind
opening a ticket on https://issues.apache.org/jira/browse/CASSANDRA
with that stack trace.
Thanks,
Sylvain
>
> 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)
>
> Ideas? Thanks in advance!
>
> --
> View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/NullPointerException-when-requesting-compactionstats-through-nodetool-tp7580370.html
> Sent from the cassandra-user@incubator.apache.org mailing list archive at Nabble.com.