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https://issues.apache.org/jira/browse/YARN-1029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13730209#comment-13730209
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Bikas Saha commented on YARN-1029:
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Yes. Thats correct. I am aware of the HDFS discussions. ZKFC is definitely
going to be part of RM failover and supported. Given RM's lower memory
consumption and sane values of ZK timeouts the GC problem may not be severe in
the RM's case. On the other hand, with RM state being also stored in ZK, having
an embedded FC may considerably simplify deployment and maintenance of RM
failover. So its not a bad option to have.
> Allow embedding leader election into the RM
> -------------------------------------------
>
> Key: YARN-1029
> URL: https://issues.apache.org/jira/browse/YARN-1029
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Bikas Saha
> Assignee: Karthik Kambatla
>
> It should be possible to embed common ActiveStandyElector into the RM such
> that ZooKeeper based leader election and notification is in-built. In
> conjunction with a ZK state store, this configuration will be a simple
> deployment option.
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