hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Igal Shilman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6071) getRegionServerWithRetires, should log unsuccessful attempts and exceptions.
Date Sat, 26 May 2012 14:13:23 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13283986#comment-13283986

Igal Shilman commented on HBASE-6071:

Thanks for commenting, I would like to clarify:

bq. My original intention was using the above debug log to facilitate finding root cause.
Our 0.90.4 production clients are already patched, following your suggestion from the mailing
We are still waiting for the original error to occur (it happens infrequently) and when it'll
happen I'll report back w/ the details.

bq. It would be nice if debug log is added to 0.90 release you're using and see what we get.
I have also prepared a patch for the 0.90 branch, backporting hbase.client.log.scanner.activity
to the ScannerCallable. If it has any value besides debugging our case, I'd be happy to submit

bq. getRegionServerWithRetires, should log unsuccessful attempts and exceptions.
I understand that trunk's ScannerCallable has a hbase.client.log.scanner.activity option,
that enables logging failures from the scanner's side, yet ServerCallable along w/ its retry
facility is being used by others as well, so they are still affected by the issue reported
in this JIRA. Therefore, following your initial intention, I'm suggesting the patch for the
trunk (+ backport, if approved) that simply logs an exception at each retry.

> 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, HConnectionManager_HBASE-6071-0.90.0.patch
> 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.

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira


View raw message