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Posted to issues@hbase.apache.org by "Chia-Ping Tsai (JIRA)" <ji...@apache.org> on 2018/04/16 07:36:00 UTC
[jira] [Comment Edited] (HBASE-20169) NPE when calling
HBTU.shutdownMiniCluster (TestAssignmentManagerMetrics is flakey)
[ https://issues.apache.org/jira/browse/HBASE-20169?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16439070#comment-16439070 ]
Chia-Ping Tsai edited comment on HBASE-20169 at 4/16/18 7:35 AM:
-----------------------------------------------------------------
This test always makes noise to my 2.0 test. I attached an addendum to make it stable. I run the patch 100 times locally. All pass.
The following change is used to fix the NPE.
{code:java}
- timeoutExecutor.sendStopSignal();
+ if (timeoutExecutor != null) {
+ timeoutExecutor.sendStopSignal();
+ }{code}
was (Author: chia7712):
This test always makes noise to my 2.0 test. I attached an addendum to make it stable. I run the patch 100 times locally. All pass.
> NPE when calling HBTU.shutdownMiniCluster (TestAssignmentManagerMetrics is flakey)
> ----------------------------------------------------------------------------------
>
> Key: HBASE-20169
> URL: https://issues.apache.org/jira/browse/HBASE-20169
> Project: HBase
> Issue Type: Bug
> Components: test
> Reporter: Duo Zhang
> Assignee: stack
> Priority: Major
> Attachments: HBASE-20169.branch-2.001.patch, HBASE-20169.branch-2.002.patch, HBASE-20169.branch-2.003.patch, HBASE-20169.branch-2.004.patch, HBASE-20169.branch-2.005.patch, HBASE-20169.v0.addendum.patch
>
>
> This usually happens when some master or rs has already been down before we calling shutdownMiniCluster.
> See
> https://builds.apache.org/job/HBASE-Flaky-Tests/27223/testReport/junit/org.apache.hadoop.hbase.master/TestAssignmentManagerMetrics/org_apache_hadoop_hbase_master_TestAssignmentManagerMetrics/
> and also
> http://104.198.223.121:8080/job/HBASE-Flaky-Tests/34873/testReport/junit/org.apache.hadoop.hbase.master/TestRestartCluster/testRetainAssignmentOnRestart/
> {noformat}
> java.lang.NullPointerException
> at org.apache.hadoop.hbase.master.TestAssignmentManagerMetrics.after(TestAssignmentManagerMetrics.java:100)
> java.lang.NullPointerException
> at org.apache.hadoop.hbase.master.TestRestartCluster.testRetainAssignmentOnRestart(TestRestartCluster.java:156)
> {noformat}
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