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