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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8851) Uncaught exception on thread Thread[SharedPool-Worker-16,5,main] after upgrade to 2.1.3
Date Tue, 24 Feb 2015 01:39:12 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14334226#comment-14334226
] 

Benedict commented on CASSANDRA-8851:
-------------------------------------

There are many improvements in 2.1.4 that will likely help here, and should also help us diagnose
by printing more helpful info. If you could try running with the current branch posted against
CASSANDRA-8832, we may get some more useful information to work with.

> Uncaught exception on thread Thread[SharedPool-Worker-16,5,main] after upgrade to 2.1.3
> ---------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8851
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8851
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: ubuntu 
>            Reporter: Tobias Schlottke
>            Assignee: Benedict
>            Priority: Critical
>
> Hi there,
> after upgrading to 2.1.3 we've got the following error every few seconds:
> {code}
> WARN  [SharedPool-Worker-16] 2015-02-23 10:20:36,392 AbstractTracingAwareExecutorService.java:169
- Uncaught exception on thread Thread[SharedPool-Worker-16,5,main]: {}
> java.lang.AssertionError: null
> 	at org.apache.cassandra.io.util.Memory.size(Memory.java:307) ~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.utils.obs.OffHeapBitSet.capacity(OffHeapBitSet.java:61) ~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.utils.BloomFilter.indexes(BloomFilter.java:74) ~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.utils.BloomFilter.isPresent(BloomFilter.java:98) ~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.io.sstable.SSTableReader.getPosition(SSTableReader.java:1366)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.io.sstable.SSTableReader.getPosition(SSTableReader.java:1350)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:41)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:185)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:62)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:273)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:62)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1915)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1748)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.Keyspace.getRow(Keyspace.java:342) ~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:57)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.db.ReadVerbHandler.doVerb(ReadVerbHandler.java:47) ~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:62) ~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) ~[na:1.7.0_45]
> 	at org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
~[apache-cassandra-2.1.3.jar:2.1.3]
> 	at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105) [apache-cassandra-2.1.3.jar:2.1.3]
> 	at java.lang.Thread.run(Thread.java:744) [na:1.7.0_45]
> {code}
> This seems to crash the compactions and pushes up server load and piles up compactions.
> Any idea / possible workaround?
> Best,
> Tobias



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