Jonathan Ellis created CASSANDRA-5025:
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Summary: Schema push/pull race
Key: CASSANDRA-5025
URL: https://issues.apache.org/jira/browse/CASSANDRA-5025
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.1.0
Reporter: Jonathan Ellis
Priority: Minor
Fix For: 1.1.8
When a schema change is made, the coordinator pushes the delta to the other
nodes in the cluster. This is more efficient than sending the entire schema.
But the coordinator also announces the new schema version, so the other nodes'
reception of the new version races with processing the delta, and usually
seeing the new schema wins. So the other nodes also issue a pull to the
coordinator for the entire schema.
Thus, schema changes tend to become O(n) in the number of KS and CF present.
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