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From "ryan rawson (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-2421) Put hangs for 10 retries on failed region servers
Date Thu, 15 Apr 2010 03:35:49 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ryan rawson updated HBASE-2421:
-------------------------------

    Attachment: HBASE-2421-2.txt

slightly better version with todd's help

> Put hangs for 10 retries on failed region servers
> -------------------------------------------------
>
>                 Key: HBASE-2421
>                 URL: https://issues.apache.org/jira/browse/HBASE-2421
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: Jean-Daniel Cryans
>            Assignee: ryan rawson
>            Priority: Critical
>             Fix For: 0.20.5, 0.21.0
>
>         Attachments: HBASE-2421-2.txt, HBASE-2421.txt
>
>
> Since MultiPut got in, instead of calling getRegionLocationForRowWithRetries we now call
getRegionServerWithRetries to send an array list of Puts. The problem is that if the region
server failed, we'll still retry the 10 times in a backoff fashion even tho we get connections
refused. This is also true for a single put since it's the same code path.
> Marking as critical since it almost disables our responsiveness to machine failures in
certain cases where we are already sending a batch of edits when the server fails. Assigning
to Ryan since he's been there recently.

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