Denis Chudov created IGNITE-23124:
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Summary: Configurable deadlock prevention policies and retry count
after LockException
Key: IGNITE-23124
URL: https://issues.apache.org/jira/browse/IGNITE-23124
Project: Ignite
Issue Type: Improvement
Reporter: Denis Chudov
*Motivation*
Currently WaitDieDeadlockPreventionPolicy is used in AI3 along with retries of
transactional operation in case of lock conflict. This approach provides better
throughput (because of no waits) but worsens the latency. Different approach
(server side waiting, like timeout-wait deadlock prevention) can have positive
effect on latency but decreases throughput. We should provide ability to
configure per-transaction this depending on workload.
See benchmark results in IGNITE-22286.
*Definition of done*
TransactionOptions are enriched with deadlock prevention policy (at least,
WaitDieDeadlockPreventionPolicy and TimeoutWaitDeadlockPreventionPolicy with
configurable waiting time) and retry count.
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