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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4456) [doc] Add a section about RS failover
Date Thu, 29 May 2014 06:12:02 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-4456:
-------------------------

       Resolution: Fixed
    Fix Version/s: 0.99.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

lgtm.  Committed to master.  Thanks for patch [~misty]

> [doc] Add a section about RS failover
> -------------------------------------
>
>                 Key: HBASE-4456
>                 URL: https://issues.apache.org/jira/browse/HBASE-4456
>             Project: HBase
>          Issue Type: Task
>          Components: documentation
>            Reporter: Jean-Daniel Cryans
>            Assignee: Misty Stanley-Jones
>             Fix For: 0.99.0
>
>         Attachments: HBASE-4456.patch
>
>
> The following questions were asked on IRC and I couldn't find a good source of info in
the online book (so I had to answer them, sad I know):
> bq. when a region server goes down, 1) do any queries get affected which are using that
region server, if they do what happens to the transactions 2) how long does it take to switch
over to another region server?
> Brief answers:
> To Q1:
> The queries get retried (I'm not sure if we have a chapter that describes how that works,
might be worth adding however bad it currently is).
> To Q2:
> ZK session timeout + split time + assignment/replay time.



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