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From "Dongjoon Hyun (Jira)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-30561) start spark applications without a 30second startup penalty
Date Mon, 16 Mar 2020 22:52:08 GMT

     [ https://issues.apache.org/jira/browse/SPARK-30561?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dongjoon Hyun updated SPARK-30561:
----------------------------------
    Affects Version/s:     (was: 3.0.0)
                       3.1.0

> start spark applications without a 30second startup penalty
> -----------------------------------------------------------
>
>                 Key: SPARK-30561
>                 URL: https://issues.apache.org/jira/browse/SPARK-30561
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 3.1.0
>            Reporter: t oo
>            Priority: Major
>
> see https://stackoverflow.com/questions/57610138/how-to-start-spark-applications-without-a-30second-startup-penalty
> using spark standalone.
> There are several sleeps that can be removed:
> grep -i 'sleep(' -R * | grep -v 'src/test/' | grep -E '^core' | grep -ivE 'mesos|yarn|python|HistoryServer|spark/ui/'
> core/src/main/scala/org/apache/spark/util/Clock.scala:      Thread.sleep(sleepTime)
> core/src/main/scala/org/apache/spark/SparkContext.scala:   * sc.parallelize(1 to 10000,
2).map { i => Thread.sleep(10); i }.count()
> core/src/main/scala/org/apache/spark/deploy/FaultToleranceTest.scala:  private def delay(secs:
Duration = 5.seconds) = Thread.sleep(secs.toMillis)
> core/src/main/scala/org/apache/spark/deploy/FaultToleranceTest.scala:          Thread.sleep(1000)
> core/src/main/scala/org/apache/spark/deploy/Client.scala:    Thread.sleep(5000)
> core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala:      Thread.sleep(100)
> core/src/main/scala/org/apache/spark/deploy/StandaloneResourceUtils.scala:          Thread.sleep(duration)
> core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala:    def sleep(seconds:
Int): Unit = (0 until seconds).takeWhile { _ =>
> core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala:      Thread.sleep(1000)
> core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala:        sleeper.sleep(waitSeconds)
> core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala:  def sleep(seconds:
Int): Unit
> core/src/main/scala/org/apache/spark/deploy/rest/RestSubmissionClient.scala:      Thread.sleep(REPORT_DRIVER_STATUS_INTERVAL)
> core/src/main/scala/org/apache/spark/scheduler/AsyncEventQueue.scala:      Thread.sleep(10)
> core/src/main/scala/org/apache/spark/storage/BlockManager.scala:          Thread.sleep(SLEEP_TIME_SECS
* 1000L)



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