[jira] Commented: (HBASE-1158) Include start code as part of HServerAddress

["Jim Kellerman (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12667572#action_12667572 ] 

Jim Kellerman commented on HBASE-1158:
--------------------------------------

Why is this blocked by HBASE-546? Because if we did it sooner, it would require a HBase meta region migration script.
There is no point in writing this stuff to HDFS if ZK can keep track of it


> Include start code as part of HServerAddress
> --------------------------------------------
>
>                 Key: HBASE-1158
>                 URL: https://issues.apache.org/jira/browse/HBASE-1158
>             Project: Hadoop HBase
>          Issue Type: Sub-task
>    Affects Versions: 0.20.0
>            Reporter: Jim Kellerman
>            Assignee: Jim Kellerman
>             Fix For: 0.20.0
>
>
> If we do not take the startcode into consideration when recovering from a server death, then we cannot know if the data in ROOT or META pertains to the the current instance or the previous one.
> With ZK this should be easier if we modify HServerAddress to contain the startCode of a HRegionServer instance. It would be immediately visible whether or not the region was on the dead server or the new server.

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