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From "Himanshu Vashishtha (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9141) Save replication znodes while migrating to 0.96
Date Tue, 06 Aug 2013 17:45:47 GMT
Himanshu Vashishtha created HBASE-9141:

             Summary: Save replication znodes while migrating to 0.96
                 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
             Fix For: 0.95.2

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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