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https://issues.apache.org/jira/browse/CASSANDRA-3270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13117733#comment-13117733
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Karl Mueller commented on CASSANDRA-3270:
-----------------------------------------
Thanks Jonathan.
I will apply this patch to 0.8 trunk and test MT compaction performance as we
discussed in email.
> Error during multi-threaded compaction in 0.8
> ---------------------------------------------
>
> Key: CASSANDRA-3270
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3270
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.0.0
> Reporter: Karl Mueller
> Assignee: Jonathan Ellis
> Labels: compaction
> Fix For: 1.0.0
>
> Attachments: 2901-0.8-v2.txt, 3270.txt
>
>
> I'm running 0.8.6 plus the multi-threaded compaction patch in issue 2901.
> I'm getting an error compacting last night:
> Error occured during compaction
> java.util.concurrent.ExecutionException: java.lang.ClassCastException:
> java.util.concurrent.ThreadPoolExecutor cannot be cast to
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor
> at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
> at java.util.concurrent.FutureTask.get(FutureTask.java:83)
> at
> org.apache.cassandra.db.compaction.CompactionManager.performMajor(CompactionManager.java:278)
> at
> org.apache.cassandra.db.ColumnFamilyStore.forceMajorCompaction(ColumnFamilyStore.java:1856)
> at
> org.apache.cassandra.service.StorageService.forceTableCompaction(StorageService.java:1447)
> 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.invoke(PerInterface.java:120)
> at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:262)
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
> at
> com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
> at
> javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1427)
> 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.invoke(RMIConnectionImpl.java:788)
> at sun.reflect.GeneratedMethodAccessor28.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$ConnectionHandler.run(TCPTransport.java:649)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.ClassCastException:
> java.util.concurrent.ThreadPoolExecutor cannot be cast to
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor
> at
> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor$1.rejectedExecution(DebuggableThreadPoolExecutor.java:53)
> at
> java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:767)
> at
> java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:658)
> at
> java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:92)
> at
> org.apache.cassandra.db.compaction.ParallelCompactionIterable$Reducer.getCompactedRow(ParallelCompactionIterable.java:211)
> at
> org.apache.cassandra.db.compaction.ParallelCompactionIterable$Reducer.getReduced(ParallelCompactionIterable.java:185)
> at
> org.apache.cassandra.db.compaction.ParallelCompactionIterable$Reducer.getReduced(ParallelCompactionIterable.java:146)
> at
> org.apache.cassandra.utils.ReducingIterator.computeNext(ReducingIterator.java:74)
> at
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:140)
> at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:135)
> at
> org.apache.cassandra.db.compaction.ParallelCompactionIterable$Unwrapper.computeNext(ParallelCompactionIterable.java:105)
> at
> org.apache.cassandra.db.compaction.ParallelCompactionIterable$Unwrapper.computeNext(ParallelCompactionIterable.java:92)
> at
> com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:140)
> at
> com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:135)
> at
> org.apache.commons.collections.iterators.FilterIterator.setNextObject(FilterIterator.java:183)
> at
> org.apache.commons.collections.iterators.FilterIterator.hasNext(FilterIterator.java:94)
> at
> org.apache.cassandra.db.compaction.CompactionManager.doCompactionWithoutSizeEstimation(CompactionManager.java:573)
> at
> org.apache.cassandra.db.compaction.CompactionManager.doCompaction(CompactionManager.java:507)
> at
> org.apache.cassandra.db.compaction.CompactionManager$4.call(CompactionManager.java:320)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> ... 3 more
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