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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9141) Replication Znodes Backup Tool
Date Thu, 15 Aug 2013 19:23:04 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-9141:
-------------------------

    Fix Version/s:     (was: 0.95.2)
                   0.96.0
    
> Replication Znodes Backup Tool
> ------------------------------
>
>                 Key: HBASE-9141
>                 URL: https://issues.apache.org/jira/browse/HBASE-9141
>             Project: HBase
>          Issue Type: Improvement
>          Components: migration, Replication
>    Affects Versions: 0.94.10
>            Reporter: Himanshu Vashishtha
>            Assignee: Himanshu Vashishtha
>             Fix For: 0.96.0
>
>         Attachments: HBase-9141.patch, HBase-9141-v1.patch
>
>
> While migrating to 0.96, we recommend deleting old znodes so users not face issues like
HBASE-7766, and let HBase create them out of box.
> Though HBase tends to store only ephemeral data in zookeeper, replication has a different
approach. Almost all of its data (state, peer info, logs, etc) is present in zookeeper. We
would like to preserve them in order to not do re-adding of peers, and ensuring complete replication
after we have migrated to 0.96. 
> This jira adds a tool to serialize/de-serialize replication znodes to the underlying
filesystem. This could be used while migrating to 0.96.0.

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