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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3944) Connection refused to nodemanagers are retried at multiple levels
Date Mon, 20 Jul 2015 22:52:05 GMT

    [ https://issues.apache.org/jira/browse/YARN-3944?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14634213#comment-14634213
] 

Hadoop QA commented on YARN-3944:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  16m 25s | 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 |   7m 50s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |   9m 41s | 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:red}-1{color} | checkstyle |   0m 52s | The applied patch generated  1 new checkstyle
issues (total was 3, now 4). |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 21s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 32s | The patch built with eclipse:eclipse.
|
| {color:green}+1{color} | findbugs |   1m 41s | The patch does not introduce any new Findbugs
(version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests |   1m 57s | Tests passed in hadoop-yarn-common. |
| | |  40m 44s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12746191/YARN-3944.v1.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / e4f7562 |
| checkstyle |  https://builds.apache.org/job/PreCommit-YARN-Build/8590/artifact/patchprocess/diffcheckstylehadoop-yarn-common.txt
|
| hadoop-yarn-common test log | https://builds.apache.org/job/PreCommit-YARN-Build/8590/artifact/patchprocess/testrun_hadoop-yarn-common.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8590/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/8590/console |


This message was automatically generated.

> Connection refused to nodemanagers are retried at multiple levels
> -----------------------------------------------------------------
>
>                 Key: YARN-3944
>                 URL: https://issues.apache.org/jira/browse/YARN-3944
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Siqi Li
>            Assignee: Siqi Li
>            Priority: Blocker
>         Attachments: YARN-3944.v1.patch
>
>
> This is related to YARN-3238. When NM is down, ipc client will get ConnectException.
> Caused by: java.net.ConnectException: Connection refused
> 	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> 	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
> 	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
> 	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
> 	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
> 	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
> 	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
> 	at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
> 	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
> 	at org.apache.hadoop.ipc.Client.call(Client.java:1438)
> However, retry happens at two layers(ipc retry 40 times and serverProxy retrying 91 times),
this could end up with ~1 hour retry interval.



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