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https://issues.apache.org/jira/browse/YARN-4095?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14722304#comment-14722304
]
Hadoop QA commented on YARN-4095:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch | 17m 33s | 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 51s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 10m 17s | There were no new javadoc
warning messages. |
| {color:green}+1{color} | release audit | 0m 21s | The applied patch does
not increase the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle | 1m 24s | The applied patch generated 1
new checkstyle issues (total was 211, now 211). |
| {color:green}+1{color} | whitespace | 0m 1s | The patch has no lines that
end in whitespace. |
| {color:green}+1{color} | install | 1m 31s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 35s | The patch built with
eclipse:eclipse. |
| {color:green}+1{color} | findbugs | 2m 53s | The patch does not introduce
any new Findbugs (version 3.0.0) warnings. |
| {color:red}-1{color} | yarn tests | 0m 22s | Tests failed in
hadoop-yarn-api. |
| {color:red}-1{color} | yarn tests | 7m 34s | Tests failed in
hadoop-yarn-server-nodemanager. |
| | | 50m 35s | |
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|| Reason || Tests ||
| Failed unit tests | hadoop.yarn.conf.TestYarnConfigurationFields |
| | hadoop.yarn.server.nodemanager.TestNodeStatusUpdaterForLabels |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12753220/YARN-4095.000.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / cf83156 |
| checkstyle |
https://builds.apache.org/job/PreCommit-YARN-Build/8948/artifact/patchprocess/diffcheckstylehadoop-yarn-api.txt
|
| hadoop-yarn-api test log |
https://builds.apache.org/job/PreCommit-YARN-Build/8948/artifact/patchprocess/testrun_hadoop-yarn-api.txt
|
| hadoop-yarn-server-nodemanager test log |
https://builds.apache.org/job/PreCommit-YARN-Build/8948/artifact/patchprocess/testrun_hadoop-yarn-server-nodemanager.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-YARN-Build/8948/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.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-YARN-Build/8948/console |
This message was automatically generated.
> Avoid sharing AllocatorPerContext object in LocalDirAllocator between
> ShuffleHandler and LocalDirsHandlerService.
> -----------------------------------------------------------------------------------------------------------------
>
> Key: YARN-4095
> URL: https://issues.apache.org/jira/browse/YARN-4095
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Reporter: zhihai xu
> Assignee: zhihai xu
> Attachments: YARN-4095.000.patch
>
>
> Currently {{ShuffleHandler}} and {{LocalDirsHandlerService}} share
> {{AllocatorPerContext}} object in {{LocalDirAllocator}} for configuration
> {{NM_LOCAL_DIRS}} because {{AllocatorPerContext}} are stored in a static
> TreeMap with configuration name as key
> {code}
> private static Map <String, AllocatorPerContext> contexts =
> new TreeMap<String, AllocatorPerContext>();
> {code}
> {{LocalDirsHandlerService}} and {{ShuffleHandler}} both create a
> {{LocalDirAllocator}} using {{NM_LOCAL_DIRS}}. Even they don't use the same
> {{Configuration}} object, but they will use the same {{AllocatorPerContext}}
> object. Also {{LocalDirsHandlerService}} may change {{NM_LOCAL_DIRS}} value
> in its {{Configuration}} object to exclude full and bad local dirs,
> {{ShuffleHandler}} always uses the original {{NM_LOCAL_DIRS}} value in its
> {{Configuration}} object. So every time {{AllocatorPerContext#confChanged}}
> is called by {{ShuffleHandler}} after {{LocalDirsHandlerService}},
> {{AllocatorPerContext}} need be reinitialized because {{NM_LOCAL_DIRS}} value
> is changed. This will cause some overhead.
> {code}
> String newLocalDirs = conf.get(contextCfgItemName);
> if (!newLocalDirs.equals(savedLocalDirs)) {
> {code}
> So it will be a good improvement to not share the same
> {{AllocatorPerContext}} instance between {{ShuffleHandler}} and
> {{LocalDirsHandlerService}}.
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