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From "Fengdong Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1696) Document RM HA
Date Thu, 27 Mar 2014 01:10:17 GMT

    [ https://issues.apache.org/jira/browse/YARN-1696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13948727#comment-13948727

Fengdong Yu commented on YARN-1696:

The document is really good.
two minor comments:

+    another RM is automatically elected to be the Active and takes over. Note
+    that, there is no need to run a separate ZKFC daemon as is the case for
+    HDFS.

A little bit unclear, we cannot suppose HDFS HA is enabled. so It can be "Not that, RM automatic
failover share ZKFC with HDFS if your HDFS HA enabled, so there is no need to run a separate
ZKFC daemon here."

+** Web Services
+   The web services automatically redirect to the Active.

web services are too general, It could be confused for a new Yarner. so just changed to "RM
web UI services" or some meaningful others.

> Document RM HA
> --------------
>                 Key: YARN-1696
>                 URL: https://issues.apache.org/jira/browse/YARN-1696
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.3.0
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>            Priority: Blocker
>         Attachments: YARN-1696.2.patch, yarn-1696-1.patch
> Add documentation for RM HA. Marking this a blocker for 2.4 as this is required to call
RM HA Stable and ready for public consumption. 

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