SandishKumarHN commented on a change in pull request #23401:
[SPARK-26513][Core] : Trigger GC on executor node idle
URL: https://github.com/apache/spark/pull/23401#discussion_r244906556
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File path: core/src/main/scala/org/apache/spark/executor/Executor.scala
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@@ -628,6 +630,22 @@ private[spark] class Executor(
}
} finally {
runningTasks.remove(taskId)
+ if(idleGCEnabled) {
+ if (runningTasks.isEmpty) {
Review comment:
Will only call GC when heap usage is more than 70 or 80% used. heap gets
cleared only when context cleaner run's full GC(which run's for every 30
minutes). in between the executor is idle, why don't we use that time for GC?
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