You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@ignite.apache.org by "Alexey Scherbakov (Jira)" <ji...@apache.org> on 2024/05/20 12:24:00 UTC
[jira] [Created] (IGNITE-22286) Remove waitTimeout in deadlock retry policy
Alexey Scherbakov created IGNITE-22286:
------------------------------------------
Summary: Remove waitTimeout in deadlock retry policy
Key: IGNITE-22286
URL: https://issues.apache.org/jira/browse/IGNITE-22286
Project: Ignite
Issue Type: Improvement
Affects Versions: 3.0.0-beta1
Reporter: Alexey Scherbakov
Fix For: 3.0
After IGNITE-21540 and IGNITE-20127 we now have proper retries on client side.
This means we no longer need org.apache.ignite.internal.tx.DeadlockPreventionPolicy#waitTimeout as a part of deadock prevention policy.
Client side retries has benefit in the following scenario (having in mind WAIT_DIE prevention):
# tx1 takes lock at timestamp 10
# tx2 tries to take lock at timestamp 20 and goes for retry (without holding lock)
# tx1 lock is released
# tx3 takes lock at timestamp 30
# tx3 lock is released
# tx2 attemps to lock after retry and succeeds
Without retry on step 2 tx3 would retry too on step 4.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)