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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-1621) merge tool should work on online cluster, but disabled table
Date Thu, 07 Jul 2011 00:03:16 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-1621:
--------------------------

    Attachment: 1621-trunk.txt

Adapted onlinemerge to TRUNK.

The unit test didn't seem to make progress and repeatedly printed:
{code}
2011-07-06 16:50:56,131 DEBUG [main] client.HTable$ClientScanner(1103): Finished with scanning
at REGION => {NAME => '.META.,,1 TableName => .META.', STARTKEY => '', ENDKEY
=> '', ENCODED => 1028785192,}
2011-07-06 16:50:56,331 DEBUG [main] client.HTable$ClientScanner(1023): Creating scanner over
.META. starting at key ''
2011-07-06 16:50:56,331 DEBUG [main] client.HTable$ClientScanner(1116): Advancing internal
scanner to startKey at ''
2011-07-06 16:50:56,332 INFO  [main] util.OnlineMerge(265): mrtest,,1309996082762.1688f19bfa69d68a090aa8b90bfa1129.
{code}

> merge tool should work on online cluster, but disabled table
> ------------------------------------------------------------
>
>                 Key: HBASE-1621
>                 URL: https://issues.apache.org/jira/browse/HBASE-1621
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ryan rawson
>            Priority: Critical
>             Fix For: 0.92.0
>
>         Attachments: 1621-trunk.txt, HBASE-1621-v2.patch, HBASE-1621.patch, hbase-onlinemerge.patch
>
>
> taking down the entire cluster to merge 2 regions is a pain, i dont see why the table
or regions specifically couldnt be taken offline, then merged then brought back up.
> this might need a new API to the regionservers so they can take direction from not just
the master.

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