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https://issues.apache.org/jira/browse/FLINK-6295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tao Wang updated FLINK-6295:
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Summary: Update suspended ExecutionGraph to lower latency (was: use
LoadingCache instead of WeakHashMap to lower latency)
> Update suspended ExecutionGraph to lower latency
> ------------------------------------------------
>
> Key: FLINK-6295
> URL: https://issues.apache.org/jira/browse/FLINK-6295
> Project: Flink
> Issue Type: Bug
> Components: Webfrontend
> Reporter: Tao Wang
> Assignee: Tao Wang
>
> Now in ExecutionGraphHolder, which is used in many handlers, we use a
> WeakHashMap to cache ExecutionGraph(s), which is only sensitive to garbage
> collection.
> The latency is too high when JVM do GC rarely, which will make status of jobs
> or its tasks unmatched with the real ones.
> LoadingCache is a common used cache implementation from guava lib, we can use
> its time based eviction to lower latency of status update.
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