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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10525) Allow the client to use a different thread for writing to ease interrupt
Date Fri, 21 Feb 2014 11:14:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13908186#comment-13908186
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Nicolas Liochon commented on HBASE-10525:
-----------------------------------------

Ok the bad scenario for TestFsck was:
starts
idle time reached but connection not yet reclaimed
fsck does a new call
at this moment the connection is closed as idle
this should lead to a retry, and we would be done, but it's not enough for TestFsck

I solved this by managing this specific case explicitly: if the connection was idle but not
yet closed and we receive a call, we don't close the connection

Test added as well.

> Allow the client to use a different thread for writing to ease interrupt
> ------------------------------------------------------------------------
>
>                 Key: HBASE-10525
>                 URL: https://issues.apache.org/jira/browse/HBASE-10525
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.99.0
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>             Fix For: 0.99.0
>
>         Attachments: 10525.v1.patch, 10525.v2.patch, 10525.v3.patch, 10525.v4.patch,
10525.v5.patch, 10525.v6.patch, HBaseclient-EventualConsistency.pdf
>
>
> This is an issue in the HBASE-10070 context, but as well more generally if you want to
interrupt an operation with a limited cost. 
> I will attach a doc with a more detailed explanation.
> This adds a thread per region server; so it's otional. The first patch activates it by
default to see how it behaves on a full hadoop-qa run. The target is to be unset by default.



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