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https://issues.apache.org/jira/browse/HBASE-16190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15365563#comment-15365563
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Romil Choksi commented on HBASE-16190:
--------------------------------------
[~chenheng] Thanks for the pointer.
I do have a simple fix ready with tableMap.isEmpty() check moved under
synchronized. Want to run the test with this change a few times to make sure
its actually fixed.
> IntegrationTestDDLMasterFailover failed with IllegalArgumentException: n must
> be positive
> -----------------------------------------------------------------------------------------
>
> Key: HBASE-16190
> URL: https://issues.apache.org/jira/browse/HBASE-16190
> Project: HBase
> Issue Type: Bug
> Reporter: Romil Choksi
> Priority: Minor
> Labels: integration-test
> Attachments: HBASE-16190.patch
>
>
> IntegrationTestDDLMasterFailover failed with IllegalArgumentException: n must
> be positive
> {code}
> 2016-07-05
> 12:19:22,154|beaver.machine|INFO|4569|140080276555584|MainThread|2016-07-05
> 12:19:21,661 INFO [main] hbase.IntegrationTestDDLMasterFailover: Runtime is
> up
> 2016-07-05
> 12:19:22,154|beaver.machine|INFO|4569|140080276555584|MainThread|2016-07-05
> 12:19:22,026 ERROR [main] hbase.IntegrationTestDDLMasterFailover: Found
> exception in thread: Thread-11
> 2016-07-05
> 12:19:22,154|beaver.machine|INFO|4569|140080276555584|MainThread|2016-07-05
> 12:19:21,384 INFO [Thread-16] hbase.IntegrationTestDDLMasterFailover:
> Performing Action: CREATE_TABLE
> 2016-07-05
> 12:19:22,154|beaver.machine|INFO|4569|140080276555584|MainThread|2016-07-05
> 12:19:22,027 INFO [Thread-16] hbase.IntegrationTestDDLMasterFailover:
> Thread-16 stopped
> 2016-07-05
> 12:19:22,154|beaver.machine|INFO|4569|140080276555584|MainThread|2016-07-05
> 12:19:20,506 INFO [Thread-30] hbase.IntegrationTestDDLMasterFailover:
> Performing Action: ADD_COLUMNFAMILY
> 2016-07-05
> 12:19:22,154|beaver.machine|INFO|4569|140080276555584|MainThread|java.lang.IllegalArgumentException:
> n must be positive
> 2016-07-05
> 12:19:22,154|beaver.machine|INFO|4569|140080276555584|MainThread|at
> java.util.Random.nextInt(Random.java:300)
> 2016-07-05
> 12:19:22,155|beaver.machine|INFO|4569|140080276555584|MainThread|at
> org.apache.commons.lang.math.JVMRandom.nextInt(JVMRandom.java:118)
> 2016-07-05
> 12:19:22,155|beaver.machine|INFO|4569|140080276555584|MainThread|at
> org.apache.commons.lang.math.RandomUtils.nextInt(RandomUtils.java:88)
> 2016-07-05
> 12:19:22,155|beaver.machine|INFO|4569|140080276555584|MainThread|at
> org.apache.commons.lang.math.RandomUtils.nextInt(RandomUtils.java:74)
> 2016-07-05
> 12:19:22,155|beaver.machine|INFO|4569|140080276555584|MainThread|at
> org.apache.hadoop.hbase.IntegrationTestDDLMasterFailover$TableAction.selectTable(IntegrationTestDDLMasterFailover.java:212)
> 2016-07-05
> 12:19:22,155|beaver.machine|INFO|4569|140080276555584|MainThread|at
> org.apache.hadoop.hbase.IntegrationTestDDLMasterFailover$AddColumnFamilyAction.perform(IntegrationTestDDLMasterFailover.java:421)
> 2016-07-05
> 12:19:22,155|beaver.machine|INFO|4569|140080276555584|MainThread|at
> org.apache.hadoop.hbase.IntegrationTestDDLMasterFailover$Worker.run(IntegrationTestDDLMasterFailover.java:695)
> {code}
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