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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-3238) Issue with multi region ec2 and replication updates
Date Wed, 21 Sep 2011 22:09:26 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Williams updated CASSANDRA-3238:
----------------------------------------

    Affects Version/s:     (was: 0.8.2)
                       1.0.0
        Fix Version/s:     (was: 0.8.7)
                       1.0.0
             Assignee: Vijay

> Issue with multi region ec2 and replication updates
> ---------------------------------------------------
>
>                 Key: CASSANDRA-3238
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3238
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Nick Bailey
>            Assignee: Vijay
>             Fix For: 1.0.0
>
>
> Using the Ec2MultiRegionSnitch and updating replication settings for a keyspace seems
to cause some issues that require a rolling restart to fix. The following was observed when
updating a keyspace from SimpleStrategy to NTS in a multi region environment:
> * All repairs would hang. Even repairs only against a keyspace that was not updated.
> * Reads at CL.ONE would start to go across region
> After a rolling restart of the cluster, repairs started working correctly again and reads
stayed local to the region.

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