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https://issues.apache.org/jira/browse/IGNITE-21196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Bessonov updated IGNITE-21196:
-----------------------------------
Reviewer: Vladislav Pyatkov (was: Vladislav Pyatkov)
> PrimaryReplicaEvent handling is inefficient
> -------------------------------------------
>
> Key: IGNITE-21196
> URL: https://issues.apache.org/jira/browse/IGNITE-21196
> Project: Ignite
> Issue Type: Improvement
> Reporter: Ivan Bessonov
> Assignee: Ivan Bessonov
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-beta2
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Currently, every partition replica listener has its own set of instances of
> {{PrimaryReplicaEvent}} listeners. In
> {{LeaseTracker.UpdateListener#onUpdate}} we create these events in a loop.
>
> This results in 2 nested loops, which might be extremely inefficient if we
> have a lot of replicas on the node. Most of iterations will do nothing
> because the following condition won't pass:
> {{!replicationGroupId.equals(evt.groupId())}}
>
> I suggest subscribing to these events in {{ReplicaManager}} and perform
> necessary filtering in advance. Such change will greatly improve the
> performance of lease update watch event processing
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