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From "chunhui shen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7070) Scanner may retry forever after HBASE-5974
Date Wed, 31 Oct 2012 01:49:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13487445#comment-13487445
] 

chunhui shen commented on HBASE-7070:
-------------------------------------

bq.The next() call also can throw NSRE
Yes, it will throw NSRE, then we will reset scanner,  and then openscanner() throws NSRE,

so it won't happen that next() throws infinite NSRE.
                
> Scanner may retry forever  after HBASE-5974
> -------------------------------------------
>
>                 Key: HBASE-7070
>                 URL: https://issues.apache.org/jira/browse/HBASE-7070
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.96.0
>            Reporter: chunhui shen
>            Assignee: chunhui shen
>             Fix For: 0.96.0
>
>         Attachments: HBASE-7070.patch
>
>
> After the patch of HBASE-5974
> Suppose The process is as the following:
> 1.A next request is very large, so first time it is failed because of timeout
> 2.The second time it is failed again because of CallSequenceOutOfOrderException
> 3.We will retry this next request again after reset scanner, so it is also very large
and failed again because of timeout
> 4.CallSequenceOutOfOrderException again
> 5.Repeated the above forever...
> See the comment in HBASE-5974 for more
> https://issues.apache.org/jira/browse/HBASE-5974?focusedCommentId=13486658&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13486658

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