Renaming/Dropping Keyspace shouldn't touch hints
------------------------------------------------
Key: CASSANDRA-2693
URL: https://issues.apache.org/jira/browse/CASSANDRA-2693
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Nicholas Telford
Priority: Trivial
Currently, when renaming or dropping a keyspace,
HintedHandoffManager.renameHints() is called to drop and re-insert every hint
for that keyspace with the new keyspace name.
This code appears to have been written for a different HintsCF schema, as it
drops the row named by the old keyspace name and re-creates all of it's columns
under the key of the new keyspace name. This is not the current HintsCF schema.
It seems the impact of this is that it doesn't do anything (beyond a pointless
index scan for the HintsCF) as the keys will never exist.
It looks safe to remove this code entirely and let the hints simply become
invalid. When they're replayed invalid hints are silently dropped, which seems
like the best option.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
