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https://issues.apache.org/jira/browse/DRILL-8257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Turton closed DRILL-8257.
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Resolution: Fixed
> Resolve Netty lib conflicts
> ---------------------------
>
> Key: DRILL-8257
> URL: https://issues.apache.org/jira/browse/DRILL-8257
> Project: Apache Drill
> Issue Type: Bug
> Components: library
> Affects Versions: 1.20.1
> Reporter: James Turton
> Assignee: James Turton
> Priority: Major
> Fix For: 1.20.2
>
>
> The following transitive dependencies conflict with Drill's own, newer Netty
> dependencies and need to be excluded.
> * jars/3rdparty/netty-transport-native-epoll-4.1.45.Final.jar
> * jars/3rdparty/netty-all-4.1.59.Final.jar
> * jars/3rdparty/netty-codec-http-4.1.59.Final.jar
> It is not understood what exact conditions are needed for the library
> conflict to adversely affect a Drillbit, but when they are present it becomes
> impossible to enable TLS on the user RPC port. One guess is that a class
> loader race condition decides whether the problem will manifest.
>
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