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Date: Wed, 2 Nov 2016 03:02:58 +0000 (UTC)
From: "Guanghao Zhang (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HBASE-16985) TestClusterId failed due to wrong
 hbase rootdir
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archived-at: Wed, 02 Nov 2016 03:03:00 -0000


     [ https://issues.apache.org/jira/browse/HBASE-16985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guanghao Zhang updated HBASE-16985:
-----------------------------------
    Attachment: HBASE-16985-branch-1.patch

Attach patch for branch-1. I run TestClusterId several times locally and all passed.

> TestClusterId failed due to wrong hbase rootdir
> -----------------------------------------------
>
>                 Key: HBASE-16985
>                 URL: https://issues.apache.org/jira/browse/HBASE-16985
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Guanghao Zhang
>            Assignee: Guanghao Zhang
>            Priority: Minor
>         Attachments: HBASE-16985-branch-1.patch
>
>
> https://builds.apache.org/job/PreCommit-HBASE-Build/4253/testReport/org.apache.hadoop.hbase.regionserver/TestClusterId/testClusterId/
> {code}
> java.io.IOException: Shutting down
> 	at org.apache.hadoop.hbase.util.JVMClusterUtil.startup(JVMClusterUtil.java:230)
> 	at org.apache.hadoop.hbase.LocalHBaseCluster.startup(LocalHBaseCluster.java:409)
> 	at org.apache.hadoop.hbase.MiniHBaseCluster.init(MiniHBaseCluster.java:227)
> 	at org.apache.hadoop.hbase.MiniHBaseCluster.<init>(MiniHBaseCluster.java:96)
> 	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniHBaseCluster(HBaseTestingUtility.java:1071)
> 	at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniHBaseCluster(HBaseTestingUtility.java:1037)
> 	at org.apache.hadoop.hbase.regionserver.TestClusterId.testClusterId(TestClusterId.java:85)
> {code}
> The cluster can not start up because there are no active master. The active master can not finish initialing because the hbase:namespace region can not be assign. 
> In TestClusterId unit test, TEST_UTIL.startMiniHBaseCluster set new hbase root dir. But the regionserver thread which stared first used  a different hbase root dir. If assign hbase:namespace region to this regionserver, the region can not be assigned because there are no tableinfo on wrong hbase root dir.
> When regionserver report to master, it will get back some new config. But the FSTableDescriptors has been initialed so it's root dir didn't changed.
> {code}
> if (LOG.isDebugEnabled()) {
>     LOG.info("Config from master: " + key + "=" + value);
> }
> {code} 
> I thought FSTableDescriptors need update the rootdir when regionserver get report from master.
> The master branch has same problem, too. But the balancer always assign hbase:namesapce region to master. So this unit test can passed on master branch.



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