Benedict Elliott Smith created CASSANDRA-21013:
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Summary: Accord: Improve DurabilityQueue
Key: CASSANDRA-21013
URL: https://issues.apache.org/jira/browse/CASSANDRA-21013
Project: Apache Cassandra
Issue Type: Improvement
Components: Accord
Reporter: Benedict Elliott Smith
Improve DurabilityQueue:
- All retries are appended to a delay queue so overlaps can be pruned
- Quorum successes are not retried if there are superseding sync points
covering the ranges
- User-initiated requests are not purged unless the request has timed out or
otherwise completed
- Overlapping requests are queued up against the next to run
Alsp (C*):
- Catch-up with quorums on restart
- Manage an ordered set of keys in cache for faster range searches
Also (Accord):
- Update copy of BTree and import IntervalBTree
- Fix RedundantStatus WAS_OWNED_OVERRIDE_MASK
- Add Catchup mechanism to reach parity with a quorum on restart
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