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Posted to issues@hbase.apache.org by "Nicolas Spiegelberg (Commented) (JIRA)" <ji...@apache.org> on 2011/11/11 02:30:51 UTC

[jira] [Commented] (HBASE-4771) Script to List HRegion Availability

    [ https://issues.apache.org/jira/browse/HBASE-4771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13148190#comment-13148190 ] 

Nicolas Spiegelberg commented on HBASE-4771:
--------------------------------------------

Part of 89-fb to 92 port.  See r1181545 in 89-fb.  For our internal implementation, we made a Ruby Script to accomplish this that polls the region assignment state in META.  A more permanent solution would be to provide a checkRegionAvailability() API in HBaseAdmin that would directly contact the master for this information.
                
> Script to List HRegion Availability
> -----------------------------------
>
>                 Key: HBASE-4771
>                 URL: https://issues.apache.org/jira/browse/HBASE-4771
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.94.0
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>            Priority: Minor
>
> One critical feature necessary to completely automate production pushes is the ability to recognize when HBase has successfully made all regions available for reads/writes (step prior to HBCK).  Created script to display region availability status and stall until all onlined regions are actually available.

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