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Posted to issues@hbase.apache.org by "Todd Lipcon (Commented) (JIRA)" <ji...@apache.org> on 2011/11/18 01:07:51 UTC

[jira] [Commented] (HBASE-4815) Disable online altering by default, create a config for it

    [ https://issues.apache.org/jira/browse/HBASE-4815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13152485#comment-13152485 ] 

Todd Lipcon commented on HBASE-4815:
------------------------------------

+1
                
> 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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