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From "Benjamin Coverston (JIRA)" <>
Subject [jira] [Created] (CASSANDRA-3114) After Choosing EC2Snitch you can't migrate off w/o a full cluster restart
Date Wed, 31 Aug 2011 20:42:10 GMT
After Choosing EC2Snitch you can't migrate off w/o a full cluster restart

                 Key: CASSANDRA-3114
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 0.8.4, 0.7.8
            Reporter: Benjamin Coverston

Once you choose the Ec2Snitch the gossip messages will trigger this exception if you try to
move (for example) to the property file snitch:

ERROR [pool-2-thread-11] 2011-08-30 16:38:06,935 (line 3041) Internal error
processing get_slice 
at org.apache.cassandra.locator.Ec2Snitch.getDatacenter( 
at org.apache.cassandra.locator.DynamicEndpointSnitch.getDatacenter(

at org.apache.cassandra.service.DatacenterReadCallback.assureSufficientLiveNodes(

at org.apache.cassandra.service.StorageProxy.fetchRows( 
at org.apache.cassandra.thrift.CassandraServer.readColumnFamily(

at org.apache.cassandra.thrift.CassandraServer.getSlice( 
at org.apache.cassandra.thrift.CassandraServer.multigetSliceInternal(

at org.apache.cassandra.thrift.CassandraServer.get_slice( 
at org.apache.cassandra.thrift.Cassandra$Processor$get_slice.process(

at org.apache.cassandra.thrift.Cassandra$Processor.process( 
at org.apache.cassandra.thrift.CustomTThreadPoolServer$

at java.util.concurrent.ThreadPoolExecutor$Worker.runTask( 
at java.util.concurrent.ThreadPoolExecutor$ 

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