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From "dhruba borthakur (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4696) HRegionThriftServer' might have to indefinitely do redirtects
Date Sun, 30 Oct 2011 08:37:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139564#comment-13139564
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dhruba borthakur commented on HBASE-4696:
-----------------------------------------

+1 code looks good to me.
                
> HRegionThriftServer' might have to indefinitely do redirtects
> -------------------------------------------------------------
>
>                 Key: HBASE-4696
>                 URL: https://issues.apache.org/jira/browse/HBASE-4696
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.94.0
>            Reporter: Prakash Khemani
>            Assignee: Jonathan Gray
>             Fix For: 0.94.0
>
>         Attachments: HBASE-4696-v1.patch
>
>
> HRegionThriftServer.getRowWithColumnsTs() redirects the request to the correct region
server if it has landed on the wrong region-server. With this approach the smart-client will
never get a NotServingRegionException and it will never be able to invalidate its cache. It
will indefinitely send the request to the wrong region server and the wrong region server
will always be redirecting it.
> Either redirects should be turned off and the client should react to NotServingRegionExceptions.
> Or somehow a flag should be set in the response telling the client to refresh its cache.

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