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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2011/09/15 02:28:09 UTC

[jira] [Commented] (HBASE-4412) no need to retry scan operation on the same server in the case of RegionServerStoppedException

    [ https://issues.apache.org/jira/browse/HBASE-4412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13105031#comment-13105031 ] 

stack commented on HBASE-4412:
------------------------------

I agree.

> no need to retry scan operation on the same server in the case of RegionServerStoppedException
> ----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4412
>                 URL: https://issues.apache.org/jira/browse/HBASE-4412
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ming Ma
>            Assignee: Ming Ma
>
> ScannerCallable.java doesn't retry on the same server in case of NotServingRegionException.
>         if (ioe instanceof NotServingRegionException) {
>           // Throw a DNRE so that we break out of cycle of calling NSRE
>           // when what we need is to open scanner against new location.
>           // Attach NSRE to signal client that it needs to resetup scanner.
>           throw new DoNotRetryIOException("Reset scanner", ioe);
> In the scenario when region server is in shutdown process, RegionServerStoppedException will be thrown. ScannerCallable still retry. It isn't necessary.

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