[jira] Updated: (HBASE-2481) Client is not getting UnknownScannerExceptions; they are being eaten

["Jean-Daniel Cryans (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-2481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Daniel Cryans updated HBASE-2481:
--------------------------------------

    Attachment: HBASE-2481.patch

Patch that adds test, does the right catching and adds a message to the scanner timeout exception. I'm still not satisfied by how we handle exceptions around that part of the code.

> Client is not getting UnknownScannerExceptions; they are being eaten
> --------------------------------------------------------------------
>
>                 Key: HBASE-2481
>                 URL: https://issues.apache.org/jira/browse/HBASE-2481
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.4
>            Reporter: stack
>            Priority: Blocker
>         Attachments: HBASE-2481.patch
>
>
> This was reported by mudphone on IRC and confirmed by myself in quick test.  If the client takes too long going back to the RS, the RS will throw an UnknownScannerException but it doesn't get back to the client.  Instead, the client scan silently ends.  Marking this blocker.  Its actually in 0.20.4.  Thats what I was testing.  Mayhaps an RC sinker?

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