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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4345) ZK-based High Availability (HA) for ResourceManager (RM)
Date Mon, 18 Jun 2012 17:09:43 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Bikas Saha updated MAPREDUCE-4345:
----------------------------------

    Assignee: Bikas Saha

Assigning to myself since this looks like something that follows directly after MAPREDUCE-4326
and design/implementation would be closely related with it.
                
> ZK-based High Availability (HA) for ResourceManager (RM)
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-4345
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4345
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Harsh J
>            Assignee: Bikas Saha
>
> One of the goals presented on MAPREDUCE-279 was to have high availability. One way that
was discussed, per Mahadev/others on https://issues.apache.org/jira/browse/MAPREDUCE-2648
and other places, was ZK:
> {quote}
> Am not sure, if you already know about the MR-279 branch (the next version of MR framework).
We've been trying to integrate ZK into the framework from the beginning. As for now, we are
just doing restart with ZK but soon we should have a HA soln with ZK.
> {quote}
> There is now MAPREDUCE-4343 that tracks recoverability via ZK. This JIRA is meant to
track HA via ZK.
> Currently there isn't a HA solution for RM, via ZK or otherwise.

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