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https://issues.apache.org/jira/browse/NIFI-4726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16318134#comment-16318134
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ASF GitHub Bot commented on NIFI-4726:
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Github user joewitt commented on the issue:
https://github.com/apache/nifi/pull/2363
not a waste of time at all. thanks for your efforts @mgaido91
> Concurrency issue with JoltTransformJson
> ----------------------------------------
>
> Key: NIFI-4726
> URL: https://issues.apache.org/jira/browse/NIFI-4726
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Marco Gaido
> Assignee: Marco Gaido
> Fix For: 1.5.0
>
>
> JoltTransformJson uses under the hood Jackson to parse JSONs. On heavy
> multithreading workloads, Jackson can have concurrency problem, as also
> described in this Stackoverflow thread
> https://stackoverflow.com/questions/17924865/jsonmappingexception-was-java-lang-arrayindexoutofboundsexception.
> This can cause all the parsing to fail when this problem occurs.
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