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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-3112) Enable and disable of table needs a bit of loving in new master
Date Tue, 09 Nov 2010 21:30:22 GMT

     [ https://issues.apache.org/jira/browse/HBASE-3112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-3112:
-------------------------

    Attachment: 3112-v14.txt

Here is what I committed.  Thanks for reviews Jon and J-D.

> Enable and disable of table needs a bit of loving in new master
> ---------------------------------------------------------------
>
>                 Key: HBASE-3112
>                 URL: https://issues.apache.org/jira/browse/HBASE-3112
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>            Priority: Critical
>             Fix For: 0.90.0
>
>         Attachments: 3112-v14.txt, 3112-v2.txt, 3112-v3.txt, 3112.txt
>
>
> The tools are in place to do a more reliable enable/disable of tables.  Some work has
been done to hack in a basic enable/disable but its not enough -- see the test avro/thrift
tests where a disable/enable/disable switchback can confuse the table state (and has been
disabled until this issue addressed).
> This issue is about finishing off enable/disable in the new master.   I think we need
to add to the table znode an enabling/disabling state rather than have them binary with a
watcher that will stop an enable (or disable) starting until the previous completes (Currently
we atomically switch the state though the region close/open lags -- some work in enable/disable
handlers helps in that they won't complete till all regions have transitioned.. but its not
enough).
> Need to add tests too.
> Marking issue critical bug because loads of the questions we get on lists are about enable/disable
probs.

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