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https://issues.apache.org/jira/browse/HBASE-7338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13531507#comment-13531507
]
Hudson commented on HBASE-7338:
-------------------------------
Integrated in HBase-TRUNK #3618 (See
[https://builds.apache.org/job/HBase-TRUNK/3618/])
HBASE-7338 Fix flaky condition for
org.apache.hadoop.hbase.TestRegionRebalancing.testRebalanceOnRegionServerNumberChange
(Himanshu) (Revision 1421444)
Result = FAILURE
jxiang :
Files :
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/TestRegionRebalancing.java
> Fix flaky condition for
> org.apache.hadoop.hbase.TestRegionRebalancing.testRebalanceOnRegionServerNumberChange
> -------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-7338
> URL: https://issues.apache.org/jira/browse/HBASE-7338
> Project: HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 0.94.3, 0.96.0
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Priority: Minor
> Fix For: 0.96.0
>
> Attachments: HBASE-7338.patch
>
>
> The balancer doesn't run in case a region is in-transition. The check to
> confirm whether there all regions are assigned looks for region count > 22,
> where the total regions are 27. This may result in a failure:
> {code}
> java.lang.AssertionError: After 5 attempts, region assignments were not
> balanced.
> at org.junit.Assert.fail(Assert.java:93)
> at
> org.apache.hadoop.hbase.TestRegionRebalancing.assertRegionsAreBalanced(TestRegionRebalancing.java:203)
> at
> org.apache.hadoop.hbase.TestRegionRebalancing.testRebalanceOnRegionServerNumberChange(TestRegionRebalancing.java:123)
> .....
> 2012-12-11 13:47:02,231 INFO [pool-1-thread-1]
> hbase.TestRegionRebalancing(120): Added fourth
> server=p0118.mtv.cloudera.com,44414,1355262422083
> 2012-12-11 13:47:02,231 INFO
> [RegionServer:3;p0118.mtv.cloudera.com,44414,1355262422083]
> regionserver.HRegionServer(3769): Registered RegionServer MXBean
> 2012-12-11 13:47:02,231 DEBUG [pool-1-thread-1] master.HMaster(987): Not
> running balancer because 1 region(s) in transition:
> {c786446fb2542f190e937057cdc79d9d=test,kkk,1355262401365.c786446fb2542f190e937057cdc79d9d.
> state=OPENING, ts=1355262421037,
> server=p0118.mtv.cloudera.com,54281,1355262419765}
> 2012-12-11 13:47:02,232 DEBUG [pool-1-thread-1]
> hbase.TestRegionRebalancing(165): There are 4 servers and 26 regions. Load
> Average: 13.0 low border: 9, up border: 16; attempt: 0
> 2012-12-11 13:47:02,232 DEBUG [pool-1-thread-1]
> hbase.TestRegionRebalancing(171): p0118.mtv.cloudera.com,51590,1355262395329
> Avg: 13.0 actual: 11
> 2012-12-11 13:47:02,232 DEBUG [pool-1-thread-1]
> hbase.TestRegionRebalancing(171): p0118.mtv.cloudera.com,52987,1355262407916
> Avg: 13.0 actual: 15
> 2012-12-11 13:47:02,233 DEBUG [pool-1-thread-1]
> hbase.TestRegionRebalancing(171): p0118.mtv.cloudera.com,48044,1355262421787
> Avg: 13.0 actual: 0
> 2012-12-11 13:47:02,233 DEBUG [pool-1-thread-1]
> hbase.TestRegionRebalancing(179): p0118.mtv.cloudera.com,48044,1355262421787
> Isn't balanced!!! Avg: 13.0 actual: 0 slop: 0.2
> 2012-12-11 13:47:12,233 DEBUG [pool-1-thread-1] master.HMaster(987): Not
> running balancer because 1 region(s) in transition:
> {code}
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