David Capwell created CASSANDRA-18451:
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Summary: CEP-15: (C*) Improve the chaos generation for Burn Tests:
slow/flakey connections and dropped messages
Key: CASSANDRA-18451
URL: https://issues.apache.org/jira/browse/CASSANDRA-18451
Project: Cassandra
Issue Type: Improvement
Components: Accord
Reporter: David Capwell
Assignee: David Capwell
Burn test should be enhanced to add the following:
1) message dropping from one node to another (this is different than the
current partition set logic in accord.impl.basic.Cluster#partitionSet)
2) for messages with callbacks, trigger failure case
3) redundant message delivery
Related work:
* Simulator’s
org.apache.cassandra.simulator.systems.SimulatedAction#applyToMessage
- Figures out what delivery action to perform via
org.apache.cassandra.simulator.FutureActionScheduler#shouldDeliver
-- timeout if dropPartition[from] != dropPartition[to] // either to/from is in
drop partition, but not both
-- config asked to override and deliver
-- 50/50 chance to deliver, after that 50/50 to deliver w/ timeout, after that
cause a failure
- in C* failure is an enum with Timeout and Unknown
- knows the schedule time and the message expire time, and can promote a
DELIVER event to DELIVER_AND_TIMEOUT
- triggers the timeout
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