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Posted to user@cassandra.apache.org by Todd Burruss <bb...@real.com> on 2010/03/05 03:54:48 UTC
ConcurrentModificationException
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$1.runMayThrow(CommitLogExecutorService.java:67)
at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
... 1 more
Re: ConcurrentModificationException
Posted by "B. Todd Burruss" <bb...@real.com>.
yes, 0.6 beta2
i'll open ticket
On Thu, 2010-03-04 at 19:00 -0800, Jonathan Ellis wrote:
> This is the 0.6 beta yes? Looks like a regression, please open a ticket.
>
> On Thu, Mar 4, 2010 at 8:54 PM, Todd Burruss <bb...@real.com> wrote:
> > i'm seeing a lot of these ... any idea?
> >
> > 2010-03-04 18:53:21,455 ERROR [MEMTABLE-POST-FLUSHER:1] [DebuggableThreadPoolExecutor.java:94] Error in executor futuretask
> > java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.util.ConcurrentModificationException
> > at java.util.concurrent.FutureTask$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$1.runMayThrow(CommitLogExecutorService.java:67)
> > at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> > ... 1 more
> >
Re: ConcurrentModificationException
Posted by Jonathan Ellis <jb...@gmail.com>.
Fixed, thanks.
On Fri, Mar 5, 2010 at 11:12 AM, B. Todd Burruss <bb...@real.com> wrote:
> https://issues.apache.org/jira/browse/CASSANDRA-853
>
> On Thu, 2010-03-04 at 19:00 -0800, Jonathan Ellis wrote:
>
> This is the 0.6 beta yes? Looks like a regression, please open a ticket.
>
> On Thu, Mar 4, 2010 at 8:54 PM, Todd Burruss <bb...@real.com> wrote:
>> i'm seeing a lot of these ... any idea?
>>
>> 2010-03-04 18:53:21,455 ERROR [MEMTABLE-POST-FLUSHER:1]
>> [DebuggableThreadPoolExecutor.java:94] Error in executor futuretask
>> java.util.concurrent.ExecutionException: java.lang.RuntimeException:
>> java.lang.RuntimeException: java.util.concurrent.ExecutionException:
>> java.util.ConcurrentModificationException
>> at
>> java.util.concurrent.FutureTask$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$1.runMayThrow(CommitLogExecutorService.java:67)
>> at
>> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
>> ... 1 more
>>
>
>
Re: ConcurrentModificationException
Posted by "B. Todd Burruss" <bb...@real.com>.
https://issues.apache.org/jira/browse/CASSANDRA-853
On Thu, 2010-03-04 at 19:00 -0800, Jonathan Ellis wrote:
> This is the 0.6 beta yes? Looks like a regression, please open a ticket.
>
> On Thu, Mar 4, 2010 at 8:54 PM, Todd Burruss <bb...@real.com> wrote:
> > i'm seeing a lot of these ... any idea?
> >
> > 2010-03-04 18:53:21,455 ERROR [MEMTABLE-POST-FLUSHER:1] [DebuggableThreadPoolExecutor.java:94] Error in executor futuretask
> > java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.util.ConcurrentModificationException
> > at java.util.concurrent.FutureTask$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$1.runMayThrow(CommitLogExecutorService.java:67)
> > at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> > ... 1 more
> >
Re: ConcurrentModificationException
Posted by Jonathan Ellis <jb...@gmail.com>.
This is the 0.6 beta yes? Looks like a regression, please open a ticket.
On Thu, Mar 4, 2010 at 8:54 PM, Todd Burruss <bb...@real.com> wrote:
> i'm seeing a lot of these ... any idea?
>
> 2010-03-04 18:53:21,455 ERROR [MEMTABLE-POST-FLUSHER:1] [DebuggableThreadPoolExecutor.java:94] Error in executor futuretask
> java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.util.ConcurrentModificationException
> at java.util.concurrent.FutureTask$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
>