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https://issues.apache.org/jira/browse/HBASE-20044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16373146#comment-16373146
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stack commented on HBASE-20044:
-------------------------------

@duo zhang Thanks... reverted and reapplied with correct JIRA number. 

> TestClientClusterStatus is flakey
> ---------------------------------
>
>                 Key: HBASE-20044
>                 URL: https://issues.apache.org/jira/browse/HBASE-20044
>             Project: HBase
>          Issue Type: Sub-task
>          Components: flakey
>            Reporter: stack
>            Priority: Major
>             Fix For: 2.0.0
>
>         Attachments: HBASE-20044.branch-2.001.patch
>
>
> It killed a nightly. Failed in flakey suite.  The compare is too sensitive to 
> slightest variance. Here are two failiures... one because the previous test 
> had not finished putting back a Region that had been offlined, and the other 
> because the count of requests was off slightly. Let me make the compare 
> coarser.... 
> {code}
> Test set: org.apache.hadoop.hbase.TestClientClusterStatus
> -------------------------------------------------------------------------------
> Tests run: 6, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 27.858 s <<< 
> FAILURE! - in org.apache.hadoop.hbase.TestClientClusterStatus
> testNone(org.apache.hadoop.hbase.TestClientClusterStatus)  Time elapsed: 
> 0.236 s  <<< FAILURE!
> java.lang.AssertionError: 
> expected:<Master: asf903.gq1.ygridcore.net,45687,1519246533030
> Number of backup masters: 2
>   asf903.gq1.ygridcore.net,34661,1519246530655
>   asf903.gq1.ygridcore.net,34734,1519246533133
> Number of live region servers: 4
>   asf903.gq1.ygridcore.net,37432,1519246533632
>   asf903.gq1.ygridcore.net,42964,1519246533554
>   asf903.gq1.ygridcore.net,43699,1519246533376
>   asf903.gq1.ygridcore.net,56911,1519246533711
> Number of dead region servers: 1
>   asf903.gq1.ygridcore.net,57278,1519246533770
> Average load: 0.25
> Number of requests: 17
> Number of regions: 1
> Number of regions in transition: 0> but was:<Master: 
> asf903.gq1.ygridcore.net,45687,1519246533030
> Number of backup masters: 2
>   asf903.gq1.ygridcore.net,34661,1519246530655
>   asf903.gq1.ygridcore.net,34734,1519246533133
> Number of live region servers: 4
>   asf903.gq1.ygridcore.net,37432,1519246533632
>   asf903.gq1.ygridcore.net,42964,1519246533554
>   asf903.gq1.ygridcore.net,43699,1519246533376
>   asf903.gq1.ygridcore.net,56911,1519246533711
> Number of dead region servers: 1
>   asf903.gq1.ygridcore.net,57278,1519246533770
> Average load: 0.5
> Number of requests: 17
> Number of regions: 2
> Number of regions in transition: 0>
>       at 
> org.apache.hadoop.hbase.TestClientClusterStatus.testNone(TestClientClusterStatus.java:107)
> {code}
> and 
> {code}
> [ERROR] Tests run: 6, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.416 
> s <<< FAILURE! - in org.apache.hadoop.hbase.TestClientClusterStatus
> [ERROR] testNone(org.apache.hadoop.hbase.TestClientClusterStatus)  Time 
> elapsed: 0.065 s  <<< FAILURE!
> java.lang.AssertionError: 
> expected:<Master: 9845c79afe69,46509,1519227084385
> Number of backup masters: 2
>   9845c79afe69,35076,1519227086213
>   9845c79afe69,45963,1519227086363
> Number of live region servers: 4
>   9845c79afe69,34709,1519227086571
>   9845c79afe69,34961,1519227086645
>   9845c79afe69,35891,1519227086720
>   9845c79afe69,36139,1519227086486
> Number of dead region servers: 1
>   9845c79afe69,41992,1519227086820
> Average load: 0.5
> Number of requests: 17
> Number of regions: 2
> Number of regions in transition: 0> but was:<Master: 
> 9845c79afe69,46509,1519227084385
> Number of backup masters: 2
>   9845c79afe69,35076,1519227086213
>   9845c79afe69,45963,1519227086363
> Number of live region servers: 4
>   9845c79afe69,34709,1519227086571
>   9845c79afe69,34961,1519227086645
>   9845c79afe69,35891,1519227086720
>   9845c79afe69,36139,1519227086486
> Number of dead region servers: 1
>   9845c79afe69,41992,1519227086820
> Average load: 0.5
> Number of requests: 19
> Number of regions: 2
> Number of regions in transition: 0>
>       at 
> org.apache.hadoop.hbase.TestClientClusterStatus.testNone(TestClientClusterStatus.java:107)
> {code}



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