[jira] [Assigned] (SPARK-33212) Move to shaded clients for Hadoop 3.x profile

["Apache Spark (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-33212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-33212:
------------------------------------

    Assignee:     (was: Apache Spark)

> Move to shaded clients for Hadoop 3.x profile
> ---------------------------------------------
>
>                 Key: SPARK-33212
>                 URL: https://issues.apache.org/jira/browse/SPARK-33212
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core, Spark Submit, SQL, YARN
>    Affects Versions: 3.0.1
>            Reporter: Chao Sun
>            Priority: Major
>
> Hadoop 3.x+ offers shaded client jars: hadoop-client-api and hadoop-client-runtime, which shade 3rd party dependencies such as Guava, protobuf, jetty etc. This Jira switches Spark to use these jars instead of hadoop-common, hadoop-client etc. Benefits include:
>  * It unblocks Spark from upgrading to Hadoop 3.2.2/3.3.0+. The newer versions of Hadoop have migrated to Guava 27.0+ and in order to resolve Guava conflicts, Spark depends on Hadoop to not leaking dependencies.
>  * It makes Spark/Hadoop dependency cleaner. Currently Spark uses both client-side and server-side Hadoop APIs from modules such as hadoop-common, hadoop-yarn-server-common etc. Moving to hadoop-client-api allows use to only use public/client API from Hadoop side.
>  * Provides a better isolation from Hadoop dependencies. In future Spark can better evolve without worrying about dependencies pulled from Hadoop side (which used to be a lot).



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