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Nan Zhu commented on SPARK-3628: -------------------------------- hmmm....OK but for this case, shall I submit individual patches for 0.9.x, 1.0.x, because there are some merge conflicts to apply the patch directly ? > Don't apply accumulator updates multiple times for tasks in result stages > ------------------------------------------------------------------------- > > Key: SPARK-3628 > URL: https://issues.apache.org/jira/browse/SPARK-3628 > Project: Spark > Issue Type: Bug > Components: Spark Core > Reporter: Matei Zaharia > Assignee: Nan Zhu > Priority: Blocker > > In previous versions of Spark, accumulator updates only got applied once for > accumulators that are only used in actions (i.e. result stages), letting you > use them to deterministically compute a result. Unfortunately, this got > broken in some recent refactorings. > This is related to https://issues.apache.org/jira/browse/SPARK-732, but that > issue is about applying the same semantics to intermediate stages too, which > is more work and may not be what we want for debugging. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org