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 Affects Versions: 0.8.6 Reporter: Karl Mueller 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 -- This message is automatically generated by JIRA. 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