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From "Qiang Tian (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12266) Slow Scan can cause dead loop in ClientScanner
Date Thu, 16 Oct 2014 02:43:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14173259#comment-14173259
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Qiang Tian commented on HBASE-12266:
------------------------------------

Thanks Guys,
frankly it looks to me such retry(including HBASE-7070)  just makes code more complicated
to read and easy to create new bugs in complex system. and it is hard to be covered by test.

As mentioned in that jira: 
bq. 1.A next request is very large, so first time it is failed because of timeout

since it is caused by client side timeout, why not just throw exception so that user(or app
layer code) knows it and set a bigger value. the timeout value is case by case, that is why
we make it configurable, right?  







> Slow Scan can cause dead loop in ClientScanner 
> -----------------------------------------------
>
>                 Key: HBASE-12266
>                 URL: https://issues.apache.org/jira/browse/HBASE-12266
>             Project: HBase
>          Issue Type: Bug
>          Components: Scanners
>    Affects Versions: 0.96.0
>            Reporter: Qiang Tian
>            Priority: Minor
>         Attachments: 12266-v2.txt, HBASE-12266-master.patch
>
>
> see http://search-hadoop.com/m/DHED45SVsC1.



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