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From "Nick Bailey (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-3238) Issue with multi region ec2 and replication updates
Date Wed, 21 Sep 2011 21:15:08 GMT
Issue with multi region ec2 and replication updates
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                 Key: CASSANDRA-3238
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3238
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 0.8.2
            Reporter: Nick Bailey
             Fix For: 0.8.7


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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