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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7070) Scanner may retry forever after HBASE-5974
Date Wed, 31 Oct 2012 05:59:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13487569#comment-13487569

stack commented on HBASE-7070:

Should it be a flag that gets set when we are retrying because of a OutOfOrderScannerNextException?
 The flag, called retryAfterOutOfOrderException or some such then stays set while we retry.
 If we get a OutOfOrderScannerNextException again, we fail with an exception saying failed
after retry.  If next succeeds, flag is cleared.

When you have it like this counting attempts, it is a little confusing I think.

We will go around and around if we are getting socket timeouts?

> 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, HBASE-7070v2.patch, HBASE-7070v3.patch, HBASE-7070v4.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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