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From "Michael Semb Wever (Jira)" <>
Subject [jira] [Updated] (CASSANDRA-16854) Exclude Jackson 1.x dependency that leaks via old hadoop-core dependency
Date Fri, 13 Aug 2021 21:19:00 GMT


Michael Semb Wever updated CASSANDRA-16854:
    Test and Documentation Plan: CI
                         Status: Patch Available  (was: Open)

> Exclude Jackson 1.x dependency that leaks via old hadoop-core dependency
> ------------------------------------------------------------------------
>                 Key: CASSANDRA-16854
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Dependencies
>            Reporter: Tatu Saloranta
>            Assignee: Tatu Saloranta
>            Priority: Normal
>             Fix For: 3.11.x, 4.0.x, 4.x
>         Attachments: CASSANDRA-16854.patch
> build.xml has a dependency for an old hadoop-core version (1.0.3). This is likely needed
for some Hadoop compatibility code under `src/java/org/apache/cassandra/hadoop`. Since 1.0.3
was released in 2012, its dependencies are very old; in particular it depends on "jackson-mapper-asl"
1.0.1 (from 2009!).
> An earlier issue CASSANDRA-15867 referenced this dependency as well (but did not actually
remove it for some reason, which marked as resolved).
> Although `hadoop-core` dependency is marked as "provided" (and should then not be included
in distributed version) it seems best to avoid downloading it during build to "build/lib/jars".
This can be done by adding 2 exclusions for "hadoop-core" and "hadoop-minicluster" dependencies
in build.xml.
> I will provide a patch.
> I also tried updating "hadoop-core" to the latest public version (1.2.1), which would
have upgraded jackson-mapper-asl to 1.8.8, but that breaks the build due to some other version
incompatibility (asm, possibly). If anyone wants to tackle that issue it could be a good follow-up
task; "hadoop-core" itself has been moved to "hadoop-client" it seems (and there's "hadoop-commons"
too... confusing).

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