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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6071) getRegionServerWithRetires, should log unsuccessful attempts and exceptions.
Date Thu, 20 Sep 2012 15:16:08 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13459660#comment-13459660
] 

Harsh J commented on HBASE-6071:
--------------------------------

Nice patch. I'd prefer if we logged this at INFO itself though. This sorta retry is also known
to kill remote bulkloads with tons of re-requests presently and we wouldn't know that if we
didn't catch it via logs.

Secondly, it is tough on many older versions of Hadoop to enable DEBUG level logs in MR (where
this (LE) is often reported from).
                
> getRegionServerWithRetires, should log unsuccessful attempts and exceptions.
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-6071
>                 URL: https://issues.apache.org/jira/browse/HBASE-6071
>             Project: HBase
>          Issue Type: Improvement
>          Components: client, ipc
>    Affects Versions: 0.92.0, 0.94.0
>            Reporter: Igal Shilman
>            Priority: Minor
>              Labels: client, ipc
>         Attachments: HBASE-6071.patch, HBASE-6071.v2.patch, HBASE-6071.v3.patch, HConnectionManager_HBASE-6071-0.90.0.patch,
lease-exception.txt
>
>
> HConnectionImplementation.getRegionServerWithRetries might terminate w/ an exception
different then a DoNotRetryIOException, thus silently drops exceptions from previous attempts.
> [~ted_yu] suggested ([here|http://mail-archives.apache.org/mod_mbox/hbase-user/201205.mbox/%3CCAFebPXBq9V9BVdzRTNr-MB3a1Lz78SZj6gvP6On0b%2Bajt9StAg%40mail.gmail.com%3E])
adding a log message inside the catch block describing the exception type and details.

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