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From "Heng Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15406) Split / merge switch left disabled after early termination of hbck
Date Mon, 07 Mar 2016 04:17:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182560#comment-15182560
] 

Heng Chen commented on HBASE-15406:
-----------------------------------

IMO there are two situations of hbck abort.
 * hbck exit because of some exceptions,  as for this situation, we could check the switch
in finally scope.
 * hbck abort by system (kill -9),  when this happens,  we could only fix the switch manually.
 Maybe we could merge hbck into master with procedure in the future,  but not do it in this
issue, 


So i think we could only solve this first one situation now.

> Split / merge switch left disabled after early termination of hbck
> ------------------------------------------------------------------
>
>                 Key: HBASE-15406
>                 URL: https://issues.apache.org/jira/browse/HBASE-15406
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Heng Chen
>            Priority: Critical
>             Fix For: 2.0.0, 1.3.0, 1.4.0
>
>
> This was what I did on cluster with 1.4.0-SNAPSHOT built Thursday:
> Run 'hbase hbck -disableSplitAndMerge' on gateway node of the cluster
> Terminate hbck early
> Enter hbase shell where I observed:
> {code}
> hbase(main):001:0> splitormerge_enabled 'SPLIT'
> false
> 0 row(s) in 0.3280 seconds
> hbase(main):002:0> splitormerge_enabled 'MERGE'
> false
> 0 row(s) in 0.0070 seconds
> {code}
> Expectation is that the split / merge switches should be restored to default value after
hbck exits.



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