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From Eric Czech <e...@nextbigsound.com>
Subject unwanted node discovery
Date Sun, 02 Oct 2011 20:25:50 GMT
We're exploring a data processing procedure where we snapshot our production
cluster data and move that data to a new cluster for analysis but I'm having
some strange issues where the analysis cluster is still somehow aware of the
production cluster (i.e. the production cluster ring is trying to include
nodes from the other cluster with the same token).

The seed addresses in cassandra.yaml definitely prohibit this type of
intersection between the two clusters so I'm guessing that it has something
to do with the information in the system sstables.

Is there anyway to duplicate raw sstables in an effort to "copy" a cluster
such that the copied cluster has a different name?  I know this usually
results in a "saved cluster name X != Y" sort of error but it looks like we
need to find some sort of way to do this logical separation.

Any help would be much appreciated!

Thanks.

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