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https://issues.apache.org/jira/browse/SPARK-3480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-3480.
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Resolution: Cannot Reproduce
> Throws out Not a valid command 'yarn-alpha/scalastyle' in dev/scalastyle for
> sbt build tool during 'Running Scala style checks'
> -------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-3480
> URL: https://issues.apache.org/jira/browse/SPARK-3480
> Project: Spark
> Issue Type: Bug
> Components: Build
> Reporter: Yi Zhou
> Priority: Minor
>
> Symptom:
> Run ./dev/run-tests and dump outputs as following:
> SBT_MAVEN_PROFILES_ARGS="-Pyarn -Phadoop-2.3 -Dhadoop.version=2.3.0
> -Pkinesis-asl"
> [Warn] Java 8 tests will not run because JDK version is < 1.8.
> =========================================================================
> Running Apache RAT checks
> =========================================================================
> RAT checks passed.
> =========================================================================
> Running Scala style checks
> =========================================================================
> Scalastyle checks failed at following occurrences:
> [error] Expected ID character
> [error] Not a valid command: yarn-alpha
> [error] Expected project ID
> [error] Expected configuration
> [error] Expected ':' (if selecting a configuration)
> [error] Expected key
> [error] Not a valid key: yarn-alpha
> [error] yarn-alpha/scalastyle
> [error] ^
> Possible Cause:
> I checked the dev/scalastyle, found that there are 2 parameters
> 'yarn-alpha/scalastyle' and 'yarn/scalastyle' separately,like
> echo -e "q\n" | sbt/sbt -Pyarn -Phadoop-0.23 -Dhadoop.version=0.23.9
> yarn-alpha/scalastyle \
> >> scalastyle.txt
> echo -e "q\n" | sbt/sbt -Pyarn -Phadoop-2.2 -Dhadoop.version=2.2.0
> yarn/scalastyle \
> >> scalastyle.txt
> From above error message, sbt seems to complain them due to '/' separator. So
> it can be run through after I manually modified original ones to
> 'yarn-alpha:scalastyle' and 'yarn:scalastyle'..
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