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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3644) Node manager shuts down if unable to connect with RM
Date Fri, 26 Jun 2015 15:43:06 GMT

    [ https://issues.apache.org/jira/browse/YARN-3644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14603064#comment-14603064
] 

Hadoop QA commented on YARN-3644:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  18m 30s | 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 36s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 34s | There were no new javadoc warning messages.
|
| {color:green}+1{color} | release audit |   0m 24s | The applied patch does not increase
the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle |   1m 44s | The applied patch generated  1 new checkstyle
issues (total was 211, now 211). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 35s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 34s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   4m 18s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |   0m 25s | Tests passed in hadoop-yarn-api. |
| {color:green}+1{color} | yarn tests |   1m 57s | Tests passed in hadoop-yarn-common. |
| {color:green}+1{color} | yarn tests |   6m 16s | Tests passed in hadoop-yarn-server-nodemanager.
|
| | |  53m 37s | |
\\
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12742125/YARN-3644.003.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 8ef07f7 |
| checkstyle |  https://builds.apache.org/job/PreCommit-YARN-Build/8357/artifact/patchprocess/diffcheckstylehadoop-yarn-api.txt
|
| hadoop-yarn-api test log | https://builds.apache.org/job/PreCommit-YARN-Build/8357/artifact/patchprocess/testrun_hadoop-yarn-api.txt
|
| hadoop-yarn-common test log | https://builds.apache.org/job/PreCommit-YARN-Build/8357/artifact/patchprocess/testrun_hadoop-yarn-common.txt
|
| hadoop-yarn-server-nodemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/8357/artifact/patchprocess/testrun_hadoop-yarn-server-nodemanager.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8357/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/8357/console |


This message was automatically generated.

> Node manager shuts down if unable to connect with RM
> ----------------------------------------------------
>
>                 Key: YARN-3644
>                 URL: https://issues.apache.org/jira/browse/YARN-3644
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Srikanth Sundarrajan
>            Assignee: Raju Bairishetti
>         Attachments: YARN-3644.001.patch, YARN-3644.001.patch, YARN-3644.002.patch, YARN-3644.003.patch,
YARN-3644.patch
>
>
> When NM is unable to connect to RM, NM shuts itself down.
> {code}
>           } catch (ConnectException e) {
>             //catch and throw the exception if tried MAX wait time to connect RM
>             dispatcher.getEventHandler().handle(
>                 new NodeManagerEvent(NodeManagerEventType.SHUTDOWN));
>             throw new YarnRuntimeException(e);
> {code}
> In large clusters, if RM is down for maintenance for longer period, all the NMs shuts
themselves down, requiring additional work to bring up the NMs.
> Setting the yarn.resourcemanager.connect.wait-ms to -1 has other side effects, where
non connection failures are being retried infinitely by all YarnClients (via RMProxy).



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