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From "Devaraj K (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (MAPREDUCE-2648) High Availability for JobTracker
Date Thu, 07 Jul 2011 14:09:16 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Devaraj K reassigned MAPREDUCE-2648:
------------------------------------

    Assignee: Devaraj K

> High Availability for JobTracker
> --------------------------------
>
>                 Key: MAPREDUCE-2648
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2648
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>            Reporter: Devaraj K
>            Assignee: Devaraj K
>         Attachments: High Availability for JobTracker.pdf
>
>   Original Estimate: 336h
>  Remaining Estimate: 336h
>
> In Hadoop cluster, JobTracker is responsible for managing the life cycle of MapReduce
jobs. If JobTracker fails, then MapReduce service will not be available until JobTracker is
restarted. We propose an automatic failover solution for JobTracker to address such single
point of failure. It is based on Leader Election Framework suggested in ZOOKEEPER-1080
> Please refer to attached document.

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