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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7048) Incorrect Balancer#Source wait/notify leads to early termination
Date Fri, 12 Jun 2015 05:21:03 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14582956#comment-14582956
] 

Hadoop QA commented on HDFS-7048:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  20m 12s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:red}-1{color} | tests included |   0m  0s | The patch doesn't appear to include any
new or modified tests.  Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. |
| {color:green}+1{color} | javac |   9m 15s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  11m 45s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 28s | The applied patch does not increase
the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   2m 55s | 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 |   2m  4s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 36s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   4m 22s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | native |   4m 16s | Pre-build of native portion |
| {color:red}-1{color} | hdfs tests | 104m  4s | Tests failed in hadoop-hdfs. |
| | | 160m  0s | |
\\
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|| Reason || Tests ||
| Timed out tests | org.apache.hadoop.hdfs.TestSeekBug |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12739158/HDFS-7048.01.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 83e8110 |
| hadoop-hdfs test log | https://builds.apache.org/job/PreCommit-HDFS-Build/11316/artifact/patchprocess/testrun_hadoop-hdfs.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/11316/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/11316/console |


This message was automatically generated.

> Incorrect Balancer#Source wait/notify leads to early termination
> ----------------------------------------------------------------
>
>                 Key: HDFS-7048
>                 URL: https://issues.apache.org/jira/browse/HDFS-7048
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer & mover
>    Affects Versions: 2.6.0, 2.7.0
>            Reporter: Andrew Wang
>            Assignee: Chengbing Liu
>         Attachments: HDFS-7048.01.patch
>
>
> Split off from HDFS-6621. The Balancer attempts to wake up scheduler threads early as
sources finish, but the synchronization with wait and notify is incorrect. This ticks the
failure count, which can lead to early termination.



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