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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/01/13 10:19:55 UTC
[GitHub] viirya commented on issue #23519: [SPARK-26601][SQL] Make
broadcast-exchange thread pool configurable
viirya commented on issue #23519: [SPARK-26601][SQL] Make broadcast-exchange thread pool configurable
URL: https://github.com/apache/spark/pull/23519#issuecomment-453817702
> But some times, if the Thead object do not GC quickly it may caused server(driver) OOM. In such case,we need to make this thread pool configurable.
So sounds you want to lower the number of threads? By doing this, don't you also decrease parallelism and have longer waiting for other broadcasting?
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