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https://issues.apache.org/jira/browse/HBASE-14678?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14978762#comment-14978762
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stack commented on HBASE-14678:
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[~chenheng] But then I see how it hangs on trunk just now.
Printing hanging tests
Hanging test : org.apache.hadoop.hbase.mapreduce.TestHFileOutputFormat
Hanging test : org.apache.hadoop.hbase.mapreduce.TestSyncTable
Hanging test : org.apache.hadoop.hbase.mapreduce.TestLoadIncrementalHFiles
Hanging test : org.apache.hadoop.hbase.mapreduce.TestTableMapReduce
Printing Failing tests
Failing test : org.apache.hadoop.hbase.snapshot.TestMobFlushSnapshotFromClient
Failing test : org.apache.hadoop.hbase.snapshot.TestFlushSnapshotFromClient
Ok. I'm going to do more aggressive pruning. I want to find tests that cause
surefire exit.
> Experiment: Temporarily disable balancer and a few others to see if root of
> crashed/timedout JVMs
> -------------------------------------------------------------------------------------------------
>
> Key: HBASE-14678
> URL: https://issues.apache.org/jira/browse/HBASE-14678
> Project: HBase
> Issue Type: Sub-task
> Components: test
> Reporter: stack
>
> Looking at recent builds of 1.2, I see a few of the runs finishing with kills
> and notice that a JVM exited without reporting back state. Running the
> hanging test finder, I can see at least that in one case that the balancer
> tests seem to be outstanding; looking in test output, seems to be still going
> on.... A few others are reported as hung but they look like they have just
> started running and are just killed by surefire.
> This issue is about trying to disable a few of the problematics like balancer
> tests to see if our overall stability improves. If so, I can concentrate on
> stabilizing these few tests. Else will just undo the experiment and put the
> tests back on line.
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