tgravescs commented on a change in pull request #25668: [SPARK-28884][Core]
Default number of core for yarn mode
URL: https://github.com/apache/spark/pull/25668#discussion_r321415519
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File path: core/src/main/scala/org/apache/spark/SparkContext.scala
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@@ -2714,7 +2714,7 @@ object SparkContext extends Logging {
case SparkMasterRegex.LOCAL_N_FAILURES_REGEX(threads, _) =>
convertToInt(threads)
case "yarn" =>
if (conf != null && conf.get(SUBMIT_DEPLOY_MODE) == "cluster") {
- conf.getInt(DRIVER_CORES.key, 0)
+ conf.getInt(DRIVER_CORES.key, 1)
Review comment:
ah yes you are right, I missed that, agree
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