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https://issues.apache.org/jira/browse/CASSANDRA-8851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14362988#comment-14362988
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Benedict commented on CASSANDRA-8851:
-------------------------------------
[~tobsch]: is this easily reproducible? Could you turn on trace logging in
SSTableReader, or perhaps upload the files somewhere for me to test against?
Are you running with assertions enabled?
It may be worth trying 2.1-HEAD, although I don't think this behaviour will
have changed there.
> 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
> Fix For: 2.1.4
>
>
> 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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