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https://issues.apache.org/jira/browse/NIFI-7450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Truong Duc Kien updated NIFI-7450:
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Component/s: Core Framework
Affects Version/s: 1.11.4
> Slow vote flow election due to coarse locking
> ---------------------------------------------
>
> Key: NIFI-7450
> URL: https://issues.apache.org/jira/browse/NIFI-7450
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Affects Versions: 1.11.4
> Reporter: Truong Duc Kien
> Priority: Major
>
> Synchronized locks in \{{ PopularVoteFlowElection::castVote }} and \{{
> FingerprintFactory::createFingerprint }} create a congestion, since only 1
> note can calculate fingerprint and vote at a time during flow election
> process. For large flow, creating fingerprint can take a long time, which
> means only a few nodes can cast their vote before election time expires in
> large cluster.
>
> [https://github.com/apache/nifi/blob/9608fe33fa4a3f39ee6ddca54184ccc85ef1a163/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-cluster/src/main/java/org/apache/nifi/cluster/coordination/flow/PopularVoteFlowElection.java#L119]
>
> [https://github.com/apache/nifi/blob/9608fe33fa4a3f39ee6ddca54184ccc85ef1a163/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/fingerprint/FingerprintFactory.java#L130]
>
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