What version are you running ? > ERROR [CompactionExecutor:38] 2013-07-19 17:01:34,494 CassandraDaemon.java > (line 192) Exception in thread Thread[CompactionExecutor:38,1,main] > java.lang.NullPointerException What' the full error stack ?
> Not sure if this is related or not, but I'm also getting a bunch of > AssertionErrors as well, even after running a scrub… > > ERROR [CompactionExecutor:38] 2013-07-19 17:01:06,192 CassandraDaemon.java > (line 192) Exception in thread Thread[CompactionExecutor:38,1,main] > java.lang.AssertionError: incorrect row data size 29502477 written to > /mnt/datadrive/lib/cassandra/data/fanzo/tweets_by_team/fanzo-tweets_by_team-tmp-ic-5262-Data.db; > correct is 29725806 Double check that the scrub was successful. If it's not detecting / fixing the problem look for previous log messages from that thread [CompactionExecutor:38] and see what sstables it was compacting. Try remove those. But I would give scrub another chance to get it sorted. Cheers ----------------- Aaron Morton Cassandra Consultant New Zealand @aaronmorton http://www.thelastpickle.com On 20/07/2013, at 5:04 AM, Paul Ingalls <paulinga...@gmail.com> wrote: > I'm seeing a number of NullPointerExceptions in the log of my cluster. You > can see the log line below. I'm thinking this is probably bad. Any ideas? > > ERROR [CompactionExecutor:38] 2013-07-19 17:01:34,494 CassandraDaemon.java > (line 192) Exception in thread Thread[CompactionExecutor:38,1,main] > java.lang.NullPointerException > > Not sure if this is related or not, but I'm also getting a bunch of > AssertionErrors as well, even after running a scrub… > > ERROR [CompactionExecutor:38] 2013-07-19 17:01:06,192 CassandraDaemon.java > (line 192) Exception in thread Thread[CompactionExecutor:38,1,main] > java.lang.AssertionError: incorrect row data size 29502477 written to > /mnt/datadrive/lib/cassandra/data/fanzo/tweets_by_team/fanzo-tweets_by_team-tmp-ic-5262-Data.db; > correct is 29725806 > at > org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:162) > at > org.apache.cassandra.db.compaction.CompactionTask.runWith(CompactionTask.java:162) > at > org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48) > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) > at > org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:58) > at > org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:60) > at > org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionTask.run(CompactionManager.java:211) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) > at java.util.concurrent.FutureTask.run(FutureTask.java:166) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:724) > >
