[IGNITE-24111] TopologyAwareRaftGroupService duplicates onLeaderElected event

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: ignite-3
• Epic Link: Data Consistency TC Green Again Backlog
• Assignee: Alexander Lapin
• Reporter: Alexander Lapin
• Created: 5 days ago 14:18
• Updated: 5 days ago 14:25

Description

If there was a leader on the moment of subscription both

TopologyAwareRaftGroupService.ServerEventHandler#onLeaderElected

and

org.apache.ignite.raft.jraft.rpc.impl.RaftGroupEventsClientListener#onLeaderElected

from

TopologyAwareRaftGroupService#subscribeLeader

will be called. Only single call is expected.

Issue Links

• causes: IGNITE-23783 Flaky ItDisasterRecoveryReconfigurationTest.testIncompleteRebalanceAfterResetPartitions