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From "Jeffrey Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8617) Introducing a new config to disable writes during recovering
Date Wed, 12 Jun 2013 05:41:20 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeffrey Zhong updated HBASE-8617:
---------------------------------

    Attachment: hbase-8617-v3.patch

Rebase the patch. If there is no objection, I'll check the patch in tomorrow evening. 

Thanks.
                
> Introducing a new config to disable writes during recovering 
> -------------------------------------------------------------
>
>                 Key: HBASE-8617
>                 URL: https://issues.apache.org/jira/browse/HBASE-8617
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.98.0, 0.95.1
>            Reporter: Jeffrey Zhong
>            Assignee: Jeffrey Zhong
>         Attachments: HBASE-8617.patch, HBASE-8617-v2.patch, hbase-8617-v3.patch
>
>
> In distributedLogReplay(hbase-7006), we allow writes even when a region is in recovering.
It may cause undesired behavior when applications(or deployments) already are near its write
capacity because distributedLogReplay generates more write traffic to remaining region servers.
> The new config "hbase.regionserver.disallow.writes.when.recovering" tries to address
the above situation so that recovering won't be affected by application normal write traffic.
> The default value of this config is false(meaning allow writes in recovery)

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