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Posted to issues@hbase.apache.org by "Amitanand Aiyer (JIRA)" <ji...@apache.org> on 2013/03/24 06:17:16 UTC

[jira] [Commented] (HBASE-6629) [0.89-fb] Fast fail client operations if the regionserver is repeatedly unreachable.

    [ https://issues.apache.org/jira/browse/HBASE-6629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13611978#comment-13611978 ] 

Amitanand Aiyer commented on HBASE-6629:
----------------------------------------

 http://svn.apache.org/viewvc?view=revision&revision=r1378337
                
> [0.89-fb] Fast fail client operations if the regionserver is repeatedly unreachable.
> ------------------------------------------------------------------------------------
>
>                 Key: HBASE-6629
>                 URL: https://issues.apache.org/jira/browse/HBASE-6629
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Amitanand Aiyer
>            Assignee: Amitanand Aiyer
>            Priority: Minor
>             Fix For: 0.89-fb
>
>
> We have seen occassional RSW reboots in the production cluster. 
> On the client end, the reduction in the operation throughput is a lot more than the %-age of nodes disconnected. This is because operations to the disconnected machines are holding up resources that could otherwise be used for successful operation.
> This change enables the client to detect when there are repeated failures to a regionserver, and fast fail operations so we do not hold up resources.

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