[SPARK-8910] Fix MiMa flaky due to port contention issue #7300
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asfgit
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Due to the way MiMa works, we currently start a `SQLContext` pretty early on. This causes us to start a `SparkUI` that attempts to bind to port 4040. Because many tests run in parallel on the Jenkins machines, this causes port contention sometimes and fails the MiMa tests. Note that we already disabled the SparkUI for scalatests. However, the MiMa test is run before we even have a chance to load the default scalatest settings, so we need to explicitly disable the UI ourselves. Author: Andrew Or <[email protected]> Closes #7300 from andrewor14/mima-flaky and squashes the following commits: b55a547 [Andrew Or] Do not enable SparkUI during tests (cherry picked from commit 47ef423) Signed-off-by: Reynold Xin <[email protected]>
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Due to the way MiMa works, we currently start a
SQLContextpretty early on. This causes us to start aSparkUIthat attempts to bind to port 4040. Because many tests run in parallel on the Jenkins machines, this causes port contention sometimes and fails the MiMa tests.Note that we already disabled the SparkUI for scalatests. However, the MiMa test is run before we even have a chance to load the default scalatest settings, so we need to explicitly disable the UI ourselves.