[ https://issues.apache.org/jira/browse/SPARK-12037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Or resolved SPARK-12037. ------------------------------- Resolution: Fixed Assignee: Nan Zhu Fix Version/s: 1.6.0 Target Version/s: 1.6.0 > Executors use heartbeatReceiverRef to report heartbeats and task metrics that > might not be initialized and leads to NullPointerException > ---------------------------------------------------------------------------------------------------------------------------------------- > > Key: SPARK-12037 > URL: https://issues.apache.org/jira/browse/SPARK-12037 > Project: Spark > Issue Type: Bug > Components: Spark Core > Affects Versions: 1.6.0 > Environment: The latest sources at revision {{c793d2d}} > Reporter: Jacek Laskowski > Assignee: Nan Zhu > Fix For: 1.6.0 > > > When {{Executor}} starts it starts driver heartbeater (using > {{startDriverHeartbeater()}}) that uses {{heartbeatReceiverRef}} that is > initialized later and there is a possibility of NullPointerException (after > {{spark.executor.heartbeatInterval}} or {{10s}}). > {code} > WARN Executor: Issue communicating with driver in heartbeater > java.lang.NullPointerException > at > org.apache.spark.executor.Executor.org$apache$spark$executor$Executor$$reportHeartBeat(Executor.scala:447) > at > org.apache.spark.executor.Executor$$anon$1$$anonfun$run$1.apply$mcV$sp(Executor.scala:467) > at > org.apache.spark.executor.Executor$$anon$1$$anonfun$run$1.apply(Executor.scala:467) > at > org.apache.spark.executor.Executor$$anon$1$$anonfun$run$1.apply(Executor.scala:467) > at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1717) > at org.apache.spark.executor.Executor$$anon$1.run(Executor.scala:467) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org