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  1. Spark
  2. SPARK-28403

Executor Allocation Manager can add an extra executor when speculative tasks

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Incomplete
    • 2.3.0
    • None
    • Spark Core

    Description

      It looks like SPARK-19326 added a bug in the execuctor allocation maanger where it adds an extra executor when it shouldn't when we have pending speculative tasks but the target number didn't change. https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala#L377

      It doesn't look like this is necessary since it already added in the pendingSpeculative tasks.

      See the questioning of this on the PR at:

      https://github.com/apache/spark/pull/18492/files#diff-b096353602813e47074ace09a3890d56R379

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        Issue Links

          Blocked

          Bug - A problem which impairs or prevents the functions of the product. SPARK-30511 Spark marks intentionally killed speculative tasks as pending leads to holding idle executors

          • Major - Major loss of function.
          • Resolved
          is caused by

          Bug - A problem which impairs or prevents the functions of the product. SPARK-19326 Speculated task attempts do not get launched in few scenarios

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              tgraves Thomas Graves
              Holden Karau Holden Karau
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                Resolved: