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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5843) Improve HBase MTTR - Mean Time To Recover
Date Wed, 20 Jun 2012 21:13:43 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13397876#comment-13397876
] 

Andrew Purtell commented on HBASE-5843:
---------------------------------------

HBASE-5844 and HBASE-5926 are not in 0.94, can we port these back? Seems like pretty self
contained changes.
                
> Improve HBase MTTR - Mean Time To Recover
> -----------------------------------------
>
>                 Key: HBASE-5843
>                 URL: https://issues.apache.org/jira/browse/HBASE-5843
>             Project: HBase
>          Issue Type: Umbrella
>    Affects Versions: 0.96.0
>            Reporter: nkeywal
>            Assignee: nkeywal
>
> A part of the approach is described here: https://docs.google.com/document/d/1z03xRoZrIJmg7jsWuyKYl6zNournF_7ZHzdi0qz_B4c/edit
> The ideal target is:
> - failure impact client applications only by an added delay to execute a query, whatever
the failure.
> - this delay is always inferior to 1 second.
> We're not going to achieve that immediately...
> Priority will be given to the most frequent issues.
> Short term:
> - software crash
> - standard administrative tasks as stop/start of a cluster.

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