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https://issues.apache.org/jira/browse/NIFI-2636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Moser updated NIFI-2636:
--------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
> UnpackContent has concurrent thread safety issue, causes flowfiles to fail
> --------------------------------------------------------------------------
>
> Key: NIFI-2636
> URL: https://issues.apache.org/jira/browse/NIFI-2636
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.0.0, 0.7.0
> Reporter: Michael Moser
> Assignee: Michael Moser
> Fix For: 1.1.0, 0.8.0
>
>
> Shortly after merging NIFI-2611 I took a last look at the code and noticed
> that each onTrigger() call, when the Packaging Format property is set to "use
> mime.type attribute", that the class instance variable "private Unpacker
> unpacker" can change. When UnpackContent is set to > 1 concurrent task, this
> isn't thread safe. Thread A can set the unpacker to the TarUnpacker, but
> before it gets a chance to unpack its tar file, Thread B changes the unpacker
> to a FlowFileUnpackagerV3 which causes Thread A to fail its unpack.
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