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From "ramkrishna.s.vasudevan (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4815) Disable online altering by default, create a config for it
Date Fri, 18 Nov 2011 06:29:52 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13152684#comment-13152684

ramkrishna.s.vasudevan commented on HBASE-4815:

+1. Digging more on HBASE-4729 we got many other issues...
Let me work on a patch for this.
> Disable online altering by default, create a config for it
> ----------------------------------------------------------
>                 Key: HBASE-4815
>                 URL: https://issues.apache.org/jira/browse/HBASE-4815
>             Project: HBase
>          Issue Type: Task
>    Affects Versions: 0.92.0
>            Reporter: Jean-Daniel Cryans
>            Priority: Blocker
>             Fix For: 0.92.0
> There's a whole class of bugs that we've been revealing from trying out online altering
in conjunction with other operations like splitting. HBASE-4729, HBASE-4794, and HBASE-4814
are examples.
> It's not so much that the online altering code is buggy, but that it wasn't tested in
an environment that permits splitting.
> I think we should mark online altering as experimental in 0.92 and add a config to enable
it (so it would be disabled by default, requiring people to disable to table to alter).

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