[YARN-11458] Maven parallel build fails when Yarn UI v2 is enabled

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 3.4.0, 3.3.5, 3.3.4, 3.3.9
• Component/s: yarn, yarn-ui-v2

Environment

The problem occurs sporadically while using the Hadoop development environment (Ubuntu)

• Target Version/s: 3.3.9, 3.5.0
• Assignee: Steve Vaughan
• Reporter: Steve Vaughan
• Created: 16/Mar/23 14:15
• Updated: 05/Jan/24 22:14

Description

Running a parallel build fails during assembly with the following error when running either package or install:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.4:single (package-yarn) on project hadoop-yarn-project: Failed to create assembly: Error creating assembly archive hadoop-yarn-dist: /workspace/hadoop-yarn-project/./hadoop-yarn/hadoop-yarn-ui/target/webapp/tmp/sass_compiler-input_base_path-iNYf9pEm.tmp/vendor/ember-qunit/ember-qunit.map -> [Help 1]

This appears to be a race condition introduce when `-Pyarn-ui` is used because the `hadoop-yarn-project` does not have a dependency listed for `yarn-ui`.

The command executed was:

$ mvn -nsu clean install -Pdist,native -DskipTests -Dtar -Dmaven.javadoc.skip=true -T 2C 

Issue Links

• is related to: HADOOP-19019 Parallel Maven Build Support for Apache Hadoop
• relates to: MAPREDUCE-7386 Maven parallel builds (skipping tests) fail