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From "Michael Fong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6805) Flink Cassandra connector dependency on Netty disagrees with Flink
Date Tue, 15 Aug 2017 13:14:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16127200#comment-16127200

Michael Fong commented on FLINK-6805:

Hi, [~Zentol],

Thanks for your reply. I have created a PR based on your comments above. Please check if this
is the way it would proceed and as well as the intended netty4 version. Thanks.

> Flink Cassandra connector dependency on Netty disagrees with Flink
> ------------------------------------------------------------------
>                 Key: FLINK-6805
>                 URL: https://issues.apache.org/jira/browse/FLINK-6805
>             Project: Flink
>          Issue Type: Bug
>          Components: Cassandra Connector
>    Affects Versions: 1.3.0, 1.2.1
>            Reporter: Shannon Carey
>            Assignee: Michael Fong
>             Fix For: 1.4.0
> The Flink Cassandra connector has a dependency on Netty libraries (via promotion of transitive
dependencies by the Maven shade plugin) at version 4.0.33.Final, which disagrees with the
version included in Flink of 4.0.27.Final which is included & managed by the parent POM
via dependency on netty-all.
> Due to use of netty-all, the dependency management doesn't take effect on the individual
libraries such as netty-handler, netty-codec, etc.
> I suggest that dependency management of Netty should be added for all Netty libraries
individually (netty-handler, etc.) so that all Flink modules use the same version, and similarly
I suggest that exclusions be added to the quickstart example POM for the individual Netty
libraries so that fat JARs don't include conflicting versions of Netty.
> It seems like this problem started when FLINK-6084 was implemented: transitive dependencies
of the flink-connector-cassandra were previously omitted, and now that they are included we
must make sure that they agree with the Flink distribution.

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