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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3350) YARN RackResolver spams logs with messages at info level
Date Sat, 21 Mar 2015 10:44:43 GMT

    [ https://issues.apache.org/jira/browse/YARN-3350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14372664#comment-14372664
] 

Hudson commented on YARN-3350:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #873 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/873/])
YARN-3350. YARN RackResolver spams logs with messages at info level. Contributed by Wilfred
Spiegelenburg (junping_du: rev 7f1e2f996995e1883d9336f720c27621cf1b73b6)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/RackResolver.java
* hadoop-yarn-project/CHANGES.txt


> YARN RackResolver spams logs with messages at info level
> --------------------------------------------------------
>
>                 Key: YARN-3350
>                 URL: https://issues.apache.org/jira/browse/YARN-3350
>             Project: Hadoop YARN
>          Issue Type: Improvement
>    Affects Versions: 2.6.0
>            Reporter: Wilfred Spiegelenburg
>            Assignee: Wilfred Spiegelenburg
>             Fix For: 2.8.0
>
>         Attachments: YARN-3350.2.patch, YARN-3350.patch, yarn-RackResolver-log.txt
>
>
> When you run an application the container logs shows a lot of messages for the RackResolver:
> 2015-03-10 00:58:30,483 INFO [RMCommunicator Allocator] org.apache.hadoop.yarn.util.RackResolver:
Resolved node175.example.com to /rack15
> A real world example for a large job was generating 20+ messages in 2 milliseconds during
a sustained period of time flooding the logs causing the node to run out of disk space.



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