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https://issues.apache.org/jira/browse/CASSANDRA-8310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14211424#comment-14211424
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Michael Shuler commented on CASSANDRA-8310:
-------------------------------------------
Could you, please, provide system logs for these servers, at the time of the
error, if you were performing any particular operations that triggered this,
etc.? Any extra details are helpful.
> Assertion error in 2.1.1:
> SSTableReader.cloneWithNewSummarySamplingLevel(SSTableReader.java:988)
> ------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-8310
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8310
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Donald Smith
>
> Using C* 2.1.1 on linux Centos 6.4, we're getting this AssertionError on 5
> nodes in a 12 node cluster. Also, compactions are lagging on all nodes.
> {noformat}
> ERROR [IndexSummaryManager:1] 2014-11-13 09:15:16,221 CassandraDaemon.java
> (line 153) Exception in thread Thread[IndexSummaryManager:1,1,main]
> java.lang.AssertionError: null
> at
> org.apache.cassandra.io.sstable.SSTableReader.cloneWithNewSummarySamplingLevel(SSTableReader.java:988)
> ~[apache-cassandra-2.1.1.jar:2.1.1]
> at
> org.apache.cassandra.io.sstable.IndexSummaryManager.adjustSamplingLevels(IndexSummaryManager.java:420)
> ~[apache-cassandra-2.1.1.jar:2.1.1]
> at
> org.apache.cassandra.io.sstable.IndexSummaryManager.redistributeSummaries(IndexSummaryManager.java:298)
> ~[apache-cassandra-2.1.1.jar:2.1.1]
> at
> org.apache.cassandra.io.sstable.IndexSummaryManager.redistributeSummaries(IndexSummaryManager.java:238)
> ~[apache-cassandra-2.1.1.jar:2.1.1]
> at
> org.apache.cassandra.io.sstable.IndexSummaryManager$1.runMayThrow(IndexSummaryManager.java:139)
> ~[apache-cassandra-2.1.1.jar:2.1.1]
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> ~[apache-cassandra-2.1.1.jar:2.1.1]
> at
> org.apache.cassandra.concurrent.DebuggableScheduledThreadPoolExecutor$UncomplainingRunnable.run(DebuggableScheduledThreadPoolExecutor.java:77)
> ~[apache-cassandra-2.1.1.jar:2.1.1]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> [na:1.7.0_60]
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
> [na:1.7.0_60]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
> [na:1.7.0_60]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> [na:1.7.0_60]
> {noformat}
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