Hi, daniel, thx for your help i'am just running 1 core slaves. but still i can not work it out. the executor does the task one by one, task0, task1, task2...
how can i get the memory task1 used with so many threads running in the background, also with GC. <http://apache-spark-user-list.1001560.n3.nabble.com/file/n5137/executor_threads.png> it's not accurate to use Runtime.getRuntime().freeMemory -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/something-about-memory-usage-tp5107p5137.html Sent from the Apache Spark User List mailing list archive at Nabble.com.