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https://issues.apache.org/jira/browse/STORM-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16164627#comment-16164627
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Robert Joseph Evans commented on STORM-2171:
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We actually saw this during some testing, but it has been a while, and it was
only the once, so I don't have the stack trace right now.
> blob recovery on a single host results in deadlock
> --------------------------------------------------
>
> Key: STORM-2171
> URL: https://issues.apache.org/jira/browse/STORM-2171
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Affects Versions: 2.0.0
> Reporter: Robert Joseph Evans
>
> It might be more versions but I have only tested this on 2.x.
> Essentially when trying to find replicas to copy blobs from LocalFSBlobStore
> does not exclude itself. This results in a deadlock where it is holding a
> lock trying to download the blob, and at the same time has done a request
> back to itself trying to download the blob, but it will never finish because
> it is blocked on the same lock.
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