[ https://issues.apache.org/jira/browse/SPARK-19883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen resolved SPARK-19883. ------------------------------- Resolution: Invalid This is entirely normal. It's what you see whenever anything is waiting on a lock in the JVM. Before opening a JIRA, please assemble a more complete description of a problem, not just a detail of a symptom. This however isn't even a problem. > Executor is waiting for lock > ---------------------------- > > Key: SPARK-19883 > URL: https://issues.apache.org/jira/browse/SPARK-19883 > Project: Spark > Issue Type: Bug > Components: Spark Core > Affects Versions: 2.1.0 > Reporter: hustfxj > Attachments: jstack > > > {code:borderStyle=solid} > "Executor task launch worker for task 4808985" #5373 daemon prio=5 os_prio=0 > tid=0x00007f54ef437000 nid=0x1aed0 waiting on condition [0x00007f53aebfe000] > java.lang.Thread.State: WAITING (parking) > at sun.misc.Unsafe.park(Native Method) > - parking to wait for <0x0000000498c249c0> (a > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) > at java.util.concurrent.locks.LockSupport.park(LockSupport.java:189) > at > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) > at > java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) > at > org.apache.spark.storage.ShuffleBlockFetcherIterator.next(ShuffleBlockFetcherIterator.scala:332) > at > org.apache.spark.storage.ShuffleBlockFetcherIterator.next(ShuffleBlockFetcherIterator.scala:58) > at scala.collection.Iterator$$anon$12.nextCur(Iterator.scala:434) > at scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:440) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > at > org.apache.spark.util.CompletionIterator.hasNext(CompletionIterator.scala:32) > at > org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:39) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > at > org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:199) > at > org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:63) > at > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:97) > at > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:54) > at org.apache.spark.scheduler.Task.run(Task.scala:114) > at > org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:323) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1147) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622) > at java.lang.Thread.run(Thread.java:834) -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org