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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-231) Add persistent store implementation for RMStateStore
Date Tue, 27 Nov 2012 17:25:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13504781#comment-13504781
] 

Bikas Saha commented on YARN-231:
---------------------------------

No. I mean RMStateStoreImpl catching store exceptions and figuring out whether master status
has been lost or its an unrelated store error. e.g. An error saying the store has disallowed
access vs and error saying the store is unavailable. The first would be an HA exception meaning
the RM should stop vs the second exception would mean a loss of store which may be tolerable
when storing non-critical information like node health. So, I would like to narrow down from
Exception into a better subset as we progress instead of making everything look like an IOException
now.

Good point. I will mark stuff as Unstable instead for both this and YARN-230
                
> Add persistent store implementation for RMStateStore
> ----------------------------------------------------
>
>                 Key: YARN-231
>                 URL: https://issues.apache.org/jira/browse/YARN-231
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>         Attachments: YARN-231.1.patch
>
>
> Add stores that write RM state data to ZooKeeper and FileSystem 

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