https://issues.apache.org/jira/browse/CASSANDRA-853
On Thu, 2010-03-04 at 19:00 -0800, Jonathan Ellis wrote: > This is the 0.6 beta yes? Looks like a regression, please open a ticket. > > On Thu, Mar 4, 2010 at 8:54 PM, Todd Burruss <bburr...@real.com> wrote: > > i'm seeing a lot of these ... any idea? > > > > 2010-03-04 18:53:21,455 ERROR [MEMTABLE-POST-FLUSHER:1] > > [DebuggableThreadPoolExecutor.java:94] Error in executor futuretask > > java.util.concurrent.ExecutionException: java.lang.RuntimeException: > > java.lang.RuntimeException: java.util.concurrent.ExecutionException: > > java.util.ConcurrentModificationException > > at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222) > > at java.util.concurrent.FutureTask.get(FutureTask.java:83) > > at > > org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:86) > > at > > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888) > > at > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > > at java.lang.Thread.run(Thread.java:619) > > Caused by: java.lang.RuntimeException: java.lang.RuntimeException: > > java.util.concurrent.ExecutionException: > > java.util.ConcurrentModificationException > > at > > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34) > > at > > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) > > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > > at > > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > > ... 2 more > > Caused by: java.lang.RuntimeException: > > java.util.concurrent.ExecutionException: > > java.util.ConcurrentModificationException > > at > > org.apache.cassandra.db.commitlog.CommitLog.discardCompletedSegments(CommitLog.java:357) > > at > > org.apache.cassandra.db.ColumnFamilyStore$2.runMayThrow(ColumnFamilyStore.java:392) > > at > > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30) > > ... 6 more > > Caused by: java.util.concurrent.ExecutionException: > > java.util.ConcurrentModificationException > > at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222) > > at java.util.concurrent.FutureTask.get(FutureTask.java:83) > > at > > org.apache.cassandra.db.commitlog.CommitLog.discardCompletedSegments(CommitLog.java:349) > > ... 8 more > > Caused by: java.util.ConcurrentModificationException > > at java.util.ArrayDeque$DeqIterator.next(ArrayDeque.java:605) > > at > > org.apache.cassandra.db.commitlog.CommitLog.discardCompletedSegmentsInternal(CommitLog.java:385) > > at > > org.apache.cassandra.db.commitlog.CommitLog.access$300(CommitLog.java:71) > > at > > org.apache.cassandra.db.commitlog.CommitLog$6.call(CommitLog.java:343) > > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > > at > > org.apache.cassandra.db.commitlog.CommitLogExecutorService.process(CommitLogExecutorService.java:113) > > at > > org.apache.cassandra.db.commitlog.CommitLogExecutorService.access$200(CommitLogExecutorService.java:35) > > at > > org.apache.cassandra.db.commitlog.CommitLogExecutorService$1.runMayThrow(CommitLogExecutorService.java:67) > > at > > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30) > > ... 1 more > >
