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https://issues.apache.org/jira/browse/FLINK-32386?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17746039#comment-17746039
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Lijie Wang commented on FLINK-32386:
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Done via master(1.18): 4d642635c9409883724bd0127f2a00ef14993bf0
> Add ShuffleDescriptorsCache in TaskExecutor to cache ShuffleDescriptors
> -----------------------------------------------------------------------
>
> Key: FLINK-32386
> URL: https://issues.apache.org/jira/browse/FLINK-32386
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Reporter: Weihua Hu
> Assignee: Weihua Hu
> Priority: Major
> Labels: pull-request-available
>
> Introduce a new struct named ShuffleDescriptorsCache to cache
> ShuffleDescriptorAndIndex which are offloaded by the blob server.
> The cache should have the following capabilities:
> 1. Expired after exceeding the TTL.
> 2. Limit the size of the cache. Remove the oldest element from the cache when
> its maximum size has been exceeded.
> 3. Clear elements belong to a job when it disconnects from TaskExecutor.
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