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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2314) ContainerManagementProtocolProxy can create thousands of threads for a large cluster
Date Sat, 25 Oct 2014 06:12:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-2314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14183992#comment-14183992
] 

Hudson commented on YARN-2314:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #6343 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/6343/])
YARN-2314. Disable ContainerManagementProtocolProxy cache by default to prevent creating thousands
of threads in a large cluster. Contributed by Jason Lowe (jianhe: rev f44cf99599119b5e989be724eeab447b2dc4fe53)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/api/impl/ContainerManagementProtocolProxy.java
* hadoop-yarn-project/CHANGES.txt


> ContainerManagementProtocolProxy can create thousands of threads for a large cluster
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-2314
>                 URL: https://issues.apache.org/jira/browse/YARN-2314
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.1.0-beta
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Critical
>             Fix For: 2.6.0
>
>         Attachments: YARN-2314.patch, YARN-2314v2.patch, disable-cm-proxy-cache.patch,
nmproxycachefix.prototype.patch, tez-yarn-2314.xlsx
>
>
> ContainerManagementProtocolProxy has a cache of NM proxies, and the size of this cache
is configurable.  However the cache can grow far beyond the configured size when running on
a large cluster and blow AM address/container limits.  More details in the first comment.



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