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Posted to issues@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2011/07/07 02:03:16 UTC
[jira] [Updated] (HBASE-1621) merge tool should work on online
cluster, but disabled table
[ 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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