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https://issues.apache.org/jira/browse/HBASE-13145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14345937#comment-14345937
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Hudson commented on HBASE-13145:
--------------------------------
SUCCESS: Integrated in HBase-1.1 #244 (See
[https://builds.apache.org/job/HBase-1.1/244/])
HBASE-13145 TestNamespaceAuditor.testRegionMerge is flaky (stack: rev
2c02f2f154a7dc453b4e401416543499b026bea9)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
> TestNamespaceAuditor.testRegionMerge is flaky
> ---------------------------------------------
>
> Key: HBASE-13145
> URL: https://issues.apache.org/jira/browse/HBASE-13145
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 2.0.0, 1.1.0
> Reporter: zhangduo
> Assignee: zhangduo
> Fix For: 2.0.0, 1.1.0
>
> Attachments: HBASE-13145.patch, HBASE-13145.patch
>
>
> Dig into the log
> https://builds.apache.org/job/HBase-TRUNK/6197/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.namespace.TestNamespaceAuditor-output.txt
> Seems a split operation which we expect to success is started before we
> finishing a merge and cause an infinite sleep loop.
> I guess the problem is here
> {code:title=TestNamespaceAuditor.java}
> // merge the two regions
> admin.mergeRegions(hris.get(0).getEncodedNameAsBytes(),
> hris.get(1).getEncodedNameAsBytes(), false);
>
> while (admin.getTableRegions(tableTwo).size() == initialRegions) {
> Thread.sleep(100);
> }
> {code}
> I guess that during a merge, we can get more region count than before because
> we first online the new region and then offline the two old regions.
> So change it to admin.getTableRegions(tableTwo).size() != initialRegions - 1
> may work.
> And we can modify the while loop to use Waiter.waitFor which can provide more
> useful information when test failed.
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