[jira] [Assigned] (SPARK-14765) Jenkins should run tests only based on the PR contents

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

     [ https://issues.apache.org/jira/browse/SPARK-14765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-14765:
------------------------------------

    Assignee: Apache Spark

> Jenkins should run tests only based on the PR contents
> ------------------------------------------------------
>
>                 Key: SPARK-14765
>                 URL: https://issues.apache.org/jira/browse/SPARK-14765
>             Project: Spark
>          Issue Type: Bug
>          Components: Project Infra
>            Reporter: Dongjoon Hyun
>            Assignee: Apache Spark
>
> h4. Background
> Yesterday, when I exposed a function to Python/R, only Python and R module are changed. At the first successful build, it took 25 minutes, but the next one took 125 minutes.
> * [25 minutes|https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/56291/consoleFull]
> {code}
> [info] Found the following changed modules: pyspark-sql, sparkr
> {code}
> * [125 minutes|https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/56298/]
> {code}
> [info] Found the following changed modules: pyspark-sql, sparkr, mllib, hive, sql, root
> {code}
> h4. Problem
> `identify_changed_files_from_git_commits` function in `run-tests.py` simply runs `git diff` to the master. It means **Newly updated master code** also considered as a changed file in the PR.
> h4. How to fix
> Add `git rebase` command before running `git diff`.



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