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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6300) Prevent multiple balancers from running simultaneously
Date Wed, 13 May 2015 07:47:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14541543#comment-14541543
] 

Hadoop QA commented on HDFS-6300:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  14m 59s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to include 1 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 38s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 46s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 22s | The applied patch does not increase
the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   2m 13s | There were no new checkstyle issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 34s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 34s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   3m  6s | The patch does not introduce any new Findbugs
(version 2.0.3) warnings. |
| {color:green}+1{color} | native |   3m 20s | Pre-build of native portion |
| {color:red}-1{color} | hdfs tests | 142m 49s | Tests failed in hadoop-hdfs. |
| | | 186m 24s | |
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|| Reason || Tests ||
| Failed unit tests | hadoop.tracing.TestTraceAdmin |
|   | hadoop.tools.TestHdfsConfigFields |
|   | hadoop.hdfs.server.namenode.ha.TestRetryCacheWithHA |
|   | hadoop.hdfs.server.datanode.TestDataNodeRollingUpgrade |
| Timed out tests | org.apache.hadoop.hdfs.server.namenode.ha.TestStandbyIsHot |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12732476/HDFS-6300-004.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / fcd0702 |
| hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/10946/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/10946/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf903.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep
3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/10946/console |


This message was automatically generated.

> Prevent multiple balancers from running simultaneously
> ------------------------------------------------------
>
>                 Key: HDFS-6300
>                 URL: https://issues.apache.org/jira/browse/HDFS-6300
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer & mover
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>            Priority: Critical
>              Labels: BB2015-05-RFC
>         Attachments: HDFS-6300-001.patch, HDFS-6300-002.patch, HDFS-6300-003.patch, HDFS-6300-004.patch,
HDFS-6300-005.patch, HDFS-6300.patch
>
>
> Javadoc of "Balancer.java" says, it will not allow to run second balancer if the first
one is in progress. But I've noticed multiple can run together and balancer.id implementation
is not safe guarding.
> {code}
>  * <li>Another balancer is running. Exiting...
> {code}



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