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From "ryan rawson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2223) Handle 10min+ network partitions between clusters
Date Fri, 12 Feb 2010 20:04:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833142#action_12833142
] 

ryan rawson commented on HBASE-2223:
------------------------------------

the problem with automatically spawning hard hitting jobs is they usually get spawned at like
the worst time possible and take down your site, etc, etc.

We probably need some kind of replication status/UI/etc.  Hopefully we can leverage ZK and
put most/all of the shared state in there.

> Handle 10min+ network partitions between clusters
> -------------------------------------------------
>
>                 Key: HBASE-2223
>                 URL: https://issues.apache.org/jira/browse/HBASE-2223
>             Project: Hadoop HBase
>          Issue Type: Sub-task
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.21.0
>
>
> We need a nice way of handling long network partitions without impacting a master cluster
(which pushes the data). Currently it will just retry over and over again.
> I think we could:
>  - Stop replication to a slave cluster if it didn't respond for more than 10 minutes
>  - Keep track of the duration of the partition
>  - When the slave cluster comes back, initiate a MR job like HBASE-2221 
> Maybe we want less than 10 minutes, maybe we want this to be all automatic or just the
first 2 parts. Discuss.

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