Oleg Anastasyev created CASSANDRA-6862:
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             Summary: Schema versions mismatch on large ring
                 Key: CASSANDRA-6862
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6862
             Project: Cassandra
          Issue Type: Bug
          Components: Core
         Environment: 2.0
            Reporter: Oleg Anastasyev


We have a large cluster with several hundreds nodes in 1 ring. Sometimes, 
especially after massive restarts, schema versions reported on different nodes 
mismatch.
Investigated and found, that difference is not in schema itsself, but in 
thombstones (different nodes have different set of thombstones applied to 
system tables).

Fixed by digesting schema with thombstones removed first.



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