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From "binlijin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3909) Add dynamic config
Date Thu, 23 Jan 2014 02:54:39 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13879394#comment-13879394
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binlijin commented on HBASE-3909:
---------------------------------

Q: when configuration is updated, how would regions in transition pick up the changes ?
A: when region open finished, it can check the configuration, if configuration changes the
region can apply the new configuration.

Q:when configuration is updated and meanwhile master fails over, what would happen ?
A: The new configuration takes effect must be triggered by admin,if some node failed,admin
can do it again.



> Add dynamic config
> ------------------
>
>                 Key: HBASE-3909
>                 URL: https://issues.apache.org/jira/browse/HBASE-3909
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: stack
>            Assignee: Subbu M Iyer
>         Attachments: 3909-102812.patch, 3909-102912.patch, 3909-v1.patch, 3909.v1, 3909_090712-2.patch,
HBASE-3909-backport-from-fb-for-trunk.patch, HBase Cluster Config Details.xlsx, patch-v2.patch,
testMasterNoCluster.stack
>
>
> I'm sure this issue exists already, at least as part of the discussion around making
online schema edits possible, but no hard this having its own issue.  Ted started a conversation
on this topic up on dev and Todd suggested we lookd at how Hadoop did it over in HADOOP-7001



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