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From "rajeshbabu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8045) Fix .META. migration after HBASE-3171
Date Tue, 09 Apr 2013 02:56:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

rajeshbabu updated HBASE-8045:
------------------------------

    Attachment: HBASE-8045_3.patch

Thanks [~sershe] for review. Changed log and formatted code.

bq. Do we need to convert ZK data that stores location of meta?
IMO its not needed because when ever we assign .META. we are already writing PB serialized
location to zk.
{code}
  static byte [] toByteArray(final ServerName sn) {
    // ZNode content is a pb message preceeded by some pb magic.
    HBaseProtos.ServerName pbsn =
      HBaseProtos.ServerName.newBuilder().setHostName(sn.getHostname()).
      setPort(sn.getPort()).setStartCode(sn.getStartcode()).build();
    ZooKeeperProtos.RootRegionServer pbrsr =
      ZooKeeperProtos.RootRegionServer.newBuilder().setServer(pbsn).build();
    return ProtobufUtil.prependPBMagic(pbrsr.toByteArray());
  }

{code}

                
> Fix .META. migration after HBASE-3171
> -------------------------------------
>
>                 Key: HBASE-8045
>                 URL: https://issues.apache.org/jira/browse/HBASE-8045
>             Project: HBase
>          Issue Type: Task
>            Reporter: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.95.1
>
>         Attachments: HBASE-8045_2.patch, HBASE-8045_3.patch, HBASE-8045.patch
>
>
> HBASE-3171 doesn't manage the migration correctly, see MetaMigrationConvertingToPB and
its unit test.

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