Nihar Sheth 70462f291b [SPARK-24926][CORE] Ensure numCores is used consistently in all netty configurations ... ## What changes were proposed in this pull request? Netty could just ignore user-provided configurations. In particular, spark.driver.cores would be ignored when considering the number of cores available to netty (which would usually just default to Runtime.availableProcessors() ). In transport configurations, the number of threads are based directly on how many cores the system believes it has available, and in yarn cluster mode this would generally overshoot the user-preferred value. ## How was this patch tested? As this is mostly a configuration change, tests were done manually by adding spark-submit confs and verifying the number of threads started by netty was what was expected. Passes scalastyle checks from dev/run-tests Please review http://spark.apache.org/contributing.html before opening a pull request. Author: Nihar Sheth <niharrsheth@gmail.com> Closes #21885 from NiharS/usableCores.		2018-08-04 10:27:34 -05:00
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src	[SPARK-24926][CORE] Ensure numCores is used consistently in all netty configurations	2018-08-04 10:27:34 -05:00
pom.xml	[SPARK-24420][BUILD] Upgrade ASM to 6.1 to support JDK9+	2018-07-03 10:13:48 -07:00