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https://issues.apache.org/jira/browse/BEAM-13684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17494729#comment-17494729
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Beam JIRA Bot commented on BEAM-13684:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Consider adding information to ProcessBundleRequest indicating there is no
> existing state
> -----------------------------------------------------------------------------------------
>
> Key: BEAM-13684
> URL: https://issues.apache.org/jira/browse/BEAM-13684
> Project: Beam
> Issue Type: Improvement
> Components: beam-model
> Reporter: Sam Whittle
> Assignee: Luke Cwik
> Priority: P2
> Labels: stale-assigned
>
> This allows for skipping all state fetches made during processing this key,
> preloading the cache with empty values for the key, or extending the cache to
> include this negative state information to avoid fetches as long as no state
> is evicted for the key.
> This is particularly beneficial in sparse key streaming pipelines where such
> new keys are common.
> It could also be used to avoid fetches in batch pipelines where there is no
> persisted state.
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