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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2019) Retrospect on decision of making RM crashed if any exception throw in ZKRMStateStore
Date Thu, 23 Jul 2015 13:14:06 GMT

    [ https://issues.apache.org/jira/browse/YARN-2019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14638779#comment-14638779
] 

Hudson commented on YARN-2019:
------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk #2192 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/2192/])
YARN-2019. Retrospect on decision of making RM crashed if any exception throw in ZKRMStateStore.
Contributed by Jian He. (junping_du: rev ee98d6354bbbcd0832d3e539ee097f837e5d0e31)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* hadoop-yarn-project/CHANGES.txt
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/RMStateStore.java


> Retrospect on decision of making RM crashed if any exception throw in ZKRMStateStore
> ------------------------------------------------------------------------------------
>
>                 Key: YARN-2019
>                 URL: https://issues.apache.org/jira/browse/YARN-2019
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Junping Du
>            Assignee: Jian He
>            Priority: Critical
>              Labels: ha
>             Fix For: 2.8.0
>
>         Attachments: YARN-2019.1-wip.patch, YARN-2019.patch, YARN-2019.patch
>
>
> Currently, if any abnormal happens in ZKRMStateStore, it will throw a fetal exception
to crash RM down. As shown in YARN-1924, it could due to RM HA internal bug itself, but not
fatal exception. We should retrospect some decision here as HA feature is designed to protect
key component but not disturb it.



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