[jira] [Created] (SPARK-23307) Spark UI should sort jobs/stages with the completed timestamp before cleaning up them

["Shixiong Zhu (JIRA)" <ji...@apache.org>]

Shixiong Zhu created SPARK-23307:
------------------------------------

             Summary: Spark UI should sort jobs/stages with the completed timestamp before cleaning up them
                 Key: SPARK-23307
                 URL: https://issues.apache.org/jira/browse/SPARK-23307
             Project: Spark
          Issue Type: Bug
          Components: Web UI
    Affects Versions: 2.3.0
            Reporter: Shixiong Zhu


When you have a long running job, it may be deleted from UI quickly when it completes, if you happen to run a small job after it. It's pretty annoying when you run lots of jobs in the same driver concurrently (e.g., running multiple Structured Streaming queries). We should sort jobs/stages with the completed timestamp before cleaning up them.

In 2.2, Spark has a separated buffer for completed jobs/stages, so it doesn't need to sort the jobs/stages.

What the behavior I expect:

Set "spark.ui.retainedJobs" to 10 and run the following codes, job 0 should be kept in the Spark UI.

 

{code}

new Thread() {
  override def run() {

    // job 0
    sc.makeRDD(1 to 1, 1).foreach { i =>
    Thread.sleep(10000)
   }
  }
}.start()

Thread.sleep(1000)

for (_ <- 1 to 20) {
  new Thread() {
    override def run() {
      sc.makeRDD(1 to 1, 1).foreach { i =>
      }
    }
  }.start()
}

Thread.sleep(15000)
  sc.makeRDD(1 to 1, 1).foreach { i =>
}

{code}



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