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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1665) Set better defaults for HA configs for automatic failover
Date Thu, 06 Feb 2014 22:57:21 GMT

    [ https://issues.apache.org/jira/browse/YARN-1665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13893935#comment-13893935

Xuan Gong commented on YARN-1665:

The test cases failures: org.apache.hadoop.yarn.client.api.impl.TestNMClient
org.apache.hadoop.yarn.server.resourcemanager.TestResourceTrackerService are un-related. They
can be passed locally.

Also, addressed all the latest comments.

bq. Why are the values commented out in yarn-default.xml. Should simply set them to true.
Also add a statement that they are really enabled only when HA itself is enabled overall.


bq. We made a conscious decision to force user to provide a cluster-Id. Why are we changing


> Set better defaults for HA configs for automatic failover
> ---------------------------------------------------------
>                 Key: YARN-1665
>                 URL: https://issues.apache.org/jira/browse/YARN-1665
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Arpit Gupta
>            Assignee: Xuan Gong
>         Attachments: YARN-1665.1.patch, YARN-1665.2.patch
> In order to enable HA (automatic failover) i had to set the following configs
> {code}
> <property>
>     <name>yarn.resourcemanager.ha.enabled</name>
>     <value>true</value>
>   </property>
>   <property>
>     <name>yarn.resourcemanager.ha.automatic-failover.enabled</name>
>     <value>true</value>
>   </property>
>   <property>
>     <name>yarn.resourcemanager.ha.automatic-failover.embedded</name>
>     <value>true</value>
>   </property>
> {code}
> I believe the user should just have to set yarn.resourcemanager.ha.enabled=true and the
rest should be set as defaults. Basically automatic failover should be the default.

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