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cen yuhai commented on SPARK-19300: ----------------------------------- yes > Executor is waiting for lock > ---------------------------- > > Key: SPARK-19300 > URL: https://issues.apache.org/jira/browse/SPARK-19300 > Project: Spark > Issue Type: Bug > Components: Spark Core > Affects Versions: 2.1.0 > Reporter: cen yuhai > Priority: Critical > Attachments: stderr.jpg, WAITING.jpg > > > I can see all threads in the executor is waiting for lock. > {code} > sun.misc.Unsafe.park(Native Method) > java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) > java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) > java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) > org.apache.spark.storage.ShuffleBlockFetcherIterator.next(ShuffleBlockFetcherIterator.scala:313) > org.apache.spark.storage.ShuffleBlockFetcherIterator.next(ShuffleBlockFetcherIterator.scala:54) > scala.collection.Iterator$$anon$11.next(Iterator.scala:409) > scala.collection.Iterator$$anon$12.nextCur(Iterator.scala:434) > scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:440) > scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > org.apache.spark.util.CompletionIterator.hasNext(CompletionIterator.scala:32) > org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:39) > scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) > org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.sort_addToSorter$(Unknown > Source) > org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.processNext(Unknown > Source) > org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43) > org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8$$anon$1.hasNext(WholeStageCodegenExec.scala:377) > org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.findNextInnerJoinRows$(Unknown > Source) > org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.processNext(Unknown > Source) > org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43) > org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$10$$anon$2.hasNext(WholeStageCodegenExec.scala:396) > org.apache.spark.sql.execution.columnar.InMemoryRelation$$anonfun$1$$anon$1.hasNext(InMemoryRelation.scala:138) > org.apache.spark.storage.memory.MemoryStore.putIteratorAsValues(MemoryStore.scala:215) > org.apache.spark.storage.BlockManager$$anonfun$doPutIterator$1.apply(BlockManager.scala:957) > org.apache.spark.storage.BlockManager$$anonfun$doPutIterator$1.apply(BlockManager.scala:948) > org.apache.spark.storage.BlockManager.doPut(BlockManager.scala:888) > org.apache.spark.storage.BlockManager.doPutIterator(BlockManager.scala:948) > org.apache.spark.storage.BlockManager.getOrElseUpdate(BlockManager.scala:694) > org.apache.spark.rdd.RDD.getOrCompute(RDD.scala:342) > org.apache.spark.rdd.RDD.iterator(RDD.scala:293) > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) > org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:331) > org.apache.spark.rdd.RDD.iterator(RDD.scala:295) > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) > org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:331) > org.apache.spark.rdd.RDD.iterator(RDD.scala:295) > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) > org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:331) > org.apache.spark.rdd.RDD.iterator(RDD.scala:295) > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) > org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:331) > org.apache.spark.rdd.RDD.iterator(RDD.scala:295) > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38) > org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:331) > org.apache.spark.rdd.RDD.iterator(RDD.scala:295) > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:96) > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:53) > org.apache.spark.scheduler.Task.run(Task.scala:99) > org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:330) > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > 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