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https://issues.apache.org/jira/browse/YARN-11664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17827681#comment-17827681
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ASF GitHub Bot commented on YARN-11664:
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shameersss1 opened a new pull request, #6631:
URL: https://github.com/apache/hadoop/pull/6631
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### Description of PR
Remove HDFS Binaries/Jars Dependency From Yarn
### How was this patch tested?
Manual Verification
### For code changes:
- [X] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [X] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [X] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
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> Remove HDFS Binaries/Jars Dependency From Yarn
> ----------------------------------------------
>
> Key: YARN-11664
> URL: https://issues.apache.org/jira/browse/YARN-11664
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: yarn
> Reporter: Syed Shameerur Rahman
> Priority: Major
>
> In principle Hadoop Yarn is independent of HDFS. It can work with any
> filesystem. Currently there exists some code dependency for Yarn with HDFS.
> This dependency requires Yarn to bring in some of the HDFS binaries/jars to
> its class path. The idea behind this jira is to remove this dependency so
> that Yarn can run without HDFS binaries/jars
> *Scope*
> 1. Non test classes are considered
> 2. Some test classes which comes as transitive dependency are considered
> *Out of scope*
> 1. All test classes in Yarn module is not considered
>
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
> A quick search in Yarn module revealed following HDFS dependencies
> 1. Constants
> {code:java}
> import
> org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenIdentifier;
> import org.apache.hadoop.hdfs.DFSConfigKeys;{code}
>
>
> 2. Exception
> {code:java}
> import org.apache.hadoop.hdfs.protocol.DSQuotaExceededException;
> import org.apache.hadoop.hdfs.protocol.QuotaExceededException; (Comes as a
> transitive dependency from DSQuotaExceededException){code}
>
> 3. Utility
> {code:java}
> import org.apache.hadoop.hdfs.protocol.datatransfer.IOStreamPair;{code}
>
> Both Yarn and HDFS depends on *hadoop-common* module, One straight forward
> approach is to move all these dependencies to *hadoop-common* module and both
> HDFS and Yarn can pick these dependencies.
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