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Posted to issues@spark.apache.org by "Jiang Xingbo (JIRA)" <ji...@apache.org> on 2018/07/16 08:12:00 UTC

[jira] [Created] (SPARK-24817) Implement BarrierTaskContext.barrier()

Jiang Xingbo created SPARK-24817:
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             Summary: Implement BarrierTaskContext.barrier()
                 Key: SPARK-24817
                 URL: https://issues.apache.org/jira/browse/SPARK-24817
             Project: Spark
          Issue Type: New Feature
          Components: Spark Core
    Affects Versions: 2.4.0
            Reporter: Jiang Xingbo


Implement BarrierTaskContext.barrier(), to support global sync between all the tasks in a barrier stage. The global sync shall finish immediately once all tasks in the same barrier stage reaches the same barrier.



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