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Posted to dev@whirr.apache.org by "Andrew Bayer (JIRA)" <ji...@apache.org> on 2012/08/24 01:24:42 UTC

[jira] [Assigned] (WHIRR-645) Race condition between collocated namenode and jobtracker start/init services

     [ https://issues.apache.org/jira/browse/WHIRR-645?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Bayer reassigned WHIRR-645:
----------------------------------

    Assignee: Graham Gear
    
> Race condition between collocated namenode and jobtracker start/init services
> -----------------------------------------------------------------------------
>
>                 Key: WHIRR-645
>                 URL: https://issues.apache.org/jira/browse/WHIRR-645
>             Project: Whirr
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 0.7.1
>            Reporter: Graham Gear
>            Assignee: Graham Gear
>            Priority: Minor
>         Attachments: WHIRR-645.patch
>
>
> If the jobtracker role is defined before the namenode role on the same node (as per majority of the examples), the jobtracker service will poll for namenode and race the namenode HDFS dir config steps, often resulting in a failed write of 'mapred.system.dir' and a dead jobtracker process.

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