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From "Lars Hofhansl (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4748) Race between creating recovered edits for META and master assigning ROOT and META.
Date Thu, 10 Nov 2011 05:33:51 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147500#comment-13147500

Lars Hofhansl commented on HBASE-4748:

Reading the explanation of the problem makes my head spin.

Looking at the code... It seems the Master's log splitting is always synchronous, followed
by assigning root/meta. So if the Master does the splitting there is no race, correct?

The problem you describe is with ServerShutdownhandler. I'm having a little bit a hard time
when exactly that is triggered. From the ZK node-deleted event?
> Race between creating recovered edits for META and master assigning ROOT and META.
> ----------------------------------------------------------------------------------
>                 Key: HBASE-4748
>                 URL: https://issues.apache.org/jira/browse/HBASE-4748
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
> 1. Start a cluster.
> 2. Alter a table
> 3. Restart the master using ./hbase-daemon.sh restart master
> 4. Kill the RS after master restarts.
> 5. Start RS again.
> 6. No table operations can be performed on the table that was altered but admin.listTables()
is able to list the altered table.

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