We are planning to migrate data from a Cassandra 1.2.5 to a new Cassandra 2.0.8 cluster with changed partitioner settings (1.2.5: org.apache.cassandra.dht.RandomPartitioner, 2.0.8: org.apache.cassandra.dht.Murmur3Partitioner). Restoring a snapshot via BulkLoader fails with error message SSTableReader.java (line 233) Cannot open /opt/database/apache-cassandra/xxx: partitioner org.apache.cassandra.dht.RandomPartitioner does not match system partitioner org.apache.cassandra.dht.Murmur3Partitioner. When trying to use the cqlsh COPY command we get rpc_timeout errors on export (see also http://www.datastax.com/dev/blog/simple-data-importing-and-exporting-with-cassandra) and also TTL settings are not exported. So what's the proposed tool/solution for transfering/migrating data in this case?
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