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Posted to issues@hbase.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2012/12/12 22:09:21 UTC
[jira] [Commented] (HBASE-7338) Fix flaky condition for
org.apache.hadoop.hbase.TestRegionRebalancing.testRebalanceOnRegionServerNumberChange
[ https://issues.apache.org/jira/browse/HBASE-7338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13530324#comment-13530324 ]
Hadoop QA commented on HBASE-7338:
----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12560621/HBASE-7338.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:green}+1 tests included{color}. The patch appears to include 3 new or modified tests.
{color:green}+1 hadoop2.0{color}. The patch compiles against the hadoop 2.0 profile.
{color:red}-1 javadoc{color}. The javadoc tool appears to have generated 104 warning messages.
{color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings.
{color:red}-1 findbugs{color}. The patch appears to introduce 23 new Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests:
org.apache.hadoop.hbase.master.TestMasterMetrics
Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/3497//console
This message is automatically generated.
> 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
> Priority: Minor
> 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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