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https://issues.apache.org/jira/browse/STORM-3583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ethan Li updated STORM-3583:
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Summary: Handle exceptions when AsyncLocalizer tries to get local resources
(was: Localizer should not cause supervisor restart on FileNotFoundException)
> Handle exceptions when AsyncLocalizer tries to get local resources
> ------------------------------------------------------------------
>
> Key: STORM-3583
> URL: https://issues.apache.org/jira/browse/STORM-3583
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-server
> Reporter: Kishor Patil
> Assignee: Rui Li
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.2.0
>
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
> Supervisor relies on AsyncLocalizer to download blobs from blob store.
> AsyncLocalizer uses downloadService pool to process CompletableFuture objects
> in parallel.
> We have noticed a case that while the downloading task is waiting for a
> thread to execute, new assignment changes will try to release the slot by
> dereferences all of the related local resources.
> However, reading local resources assumes two base blob downloading task have
> been completed which is not always true.
>
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