[IGNITE-12788] Cluster achieved fully rebalanced (PME-free ready) state metric

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9, 2.8.1
• Labels: iep-45
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Mikhail Petrov
• Reporter: Anton Vinogradov (Obsolete, actual is "av")
• Created: 16/Mar/20 07:31
• Updated: 30/Apr/20 09:23
• Resolved: 27/Apr/20 20:59

Description

Currently, there is no metric responsible for "PME-free ready state achieved" delivery.
GridDhtPartitionsExchangeFuture#rebalanced can be used to provide such metric.
Seems, we should update metric on each GridDhtPartitionsExchangeFuture#onDone.

P.s. Late Affinity Assignment should always set true to metric value.

Issue Links

• relates to: IGNITE-9913 Prevent data updates blocking in case of backup BLT server node leave
• links to: GitHub Pull Request #7561