GitHub user dongjoon-hyun opened a pull request:
https://github.com/apache/spark/pull/20704
[SPARK-23551][BUILD] Exclude `hadoop-mapreduce-client-core` dependency from
`orc-mapreduce`
## What changes were proposed in this pull request?
This issue aims to prevent `orc-mapreduce` dependency makes IDEs and maven
confused.
**BEFORE**
Please note that `2.6.4`.
```
$ mvn dependency:tree -Phadoop-2.7
-Dincludes=org.apache.hadoop:hadoop-mapreduce-client-core
...
[INFO]
------------------------------------------------------------------------
[INFO] Building Spark Project Catalyst 2.4.0-SNAPSHOT
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:3.0.2:tree (default-cli) @
spark-catalyst_2.11 ---
[INFO] org.apache.spark:spark-catalyst_2.11:jar:2.4.0-SNAPSHOT
[INFO] \- org.apache.spark:spark-core_2.11:jar:2.4.0-SNAPSHOT:compile
[INFO] \- org.apache.hadoop:hadoop-client:jar:2.7.3:compile
[INFO] \-
org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.7.3:compile
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building Spark Project SQL 2.4.0-SNAPSHOT
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:3.0.2:tree (default-cli) @
spark-sql_2.11 ---
[INFO] org.apache.spark:spark-sql_2.11:jar:2.4.0-SNAPSHOT
[INFO] \- org.apache.orc:orc-mapreduce:jar:nohive:1.4.3:compile
[INFO] \-
org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.6.4:compile
```
**AFTER**
```
$ mvn dependency:tree -Phadoop-2.7
-Dincludes=org.apache.hadoop:hadoop-mapreduce-client-core
...
[INFO]
------------------------------------------------------------------------
[INFO] Building Spark Project Catalyst 2.4.0-SNAPSHOT
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:3.0.2:tree (default-cli) @
spark-catalyst_2.11 ---
[INFO] org.apache.spark:spark-catalyst_2.11:jar:2.4.0-SNAPSHOT
[INFO] \- org.apache.spark:spark-core_2.11:jar:2.4.0-SNAPSHOT:compile
[INFO] \- org.apache.hadoop:hadoop-client:jar:2.7.3:compile
[INFO] \-
org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.7.3:compile
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] Building Spark Project SQL 2.4.0-SNAPSHOT
[INFO]
------------------------------------------------------------------------
[INFO]
[INFO] --- maven-dependency-plugin:3.0.2:tree (default-cli) @
spark-sql_2.11 ---
[INFO] org.apache.spark:spark-sql_2.11:jar:2.4.0-SNAPSHOT
[INFO] \- org.apache.spark:spark-core_2.11:jar:2.4.0-SNAPSHOT:compile
[INFO] \- org.apache.hadoop:hadoop-client:jar:2.7.3:compile
[INFO] \-
org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.7.3:compile
```
## How was this patch tested?
1. Pass the Jenkins with `dev/test-dependencies.sh` with the existing
dependencies.
2. Manually do the following and see the change.
```
mvn dependency:tree -Phadoop-2.7
-Dincludes=org.apache.hadoop:hadoop-mapreduce-client-core
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dongjoon-hyun/spark SPARK-23551
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20704.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #20704
----
commit dbb5ae504786ede4a336faa4033809a63ec10f92
Author: Dongjoon Hyun <dongjoon@...>
Date: 2018-03-01T17:55:50Z
[SPARK-23551][BUILD] Exclude `hadoop-mapreduce-client-core` dependency from
`orc-mapreduce`
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