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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5025) Record ClientId and CallId in EditLog to enable rebuilding retry cache in case of HA failover
Date Tue, 30 Jul 2013 05:25:49 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5025?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jing Zhao updated HDFS-5025:
----------------------------

    Status: Patch Available  (was: Open)
    
> Record ClientId and CallId in EditLog to enable rebuilding retry cache in case of HA
failover
> ---------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5025
>                 URL: https://issues.apache.org/jira/browse/HDFS-5025
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, namenode
>    Affects Versions: 3.0.0
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: editsStored, HDFS-5025.000.patch, HDFS-5025.001.patch, HDFS-5025.002.patch,
HDFS-5025.003.patch, HDFS-5025.004.patch, HDFS-5025.005.patch
>
>
> In case of HA failover, we need to be able to rebuild the retry cache in the other Namenode.
We thus need to record client id and call id in the edit log for those "AtMostOnce" operations.

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