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ASF GitHub Bot commented on SPARK-26265: ---------------------------------------- viirya edited a comment on issue #23272: [SPARK-26265][Core] Fix deadlock in BytesToBytesMap.MapIterator when locking both BytesToBytesMap.MapIterator and TaskMemoryManager URL: https://github.com/apache/spark/pull/23272#issuecomment-446190635 > last question: does the test always reproduce the bug? Or it has some randomness? If without the change, as I tried it locally 10 times, the test can reproduce the bug 10 times. But I'm not sure if it is 100% to reproduce the bug. I think we can't always to reproduce a deadlock like this. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > deadlock between TaskMemoryManager and BytesToBytesMap$MapIterator > ------------------------------------------------------------------ > > Key: SPARK-26265 > URL: https://issues.apache.org/jira/browse/SPARK-26265 > Project: Spark > Issue Type: Bug > Components: Spark Core > Affects Versions: 2.3.2 > Reporter: qian han > Priority: Major > > The application is running on a cluster with 72000 cores and 182000G mem. > Enviroment: > |spark.dynamicAllocation.minExecutors|5| > |spark.dynamicAllocation.initialExecutors|30| > |spark.dynamicAllocation.maxExecutors|400| > |spark.executor.cores|4| > |spark.executor.memory|20g| > > > Stage description: > org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver.processCmd(SparkSQLCLIDriver.scala:364) > org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:422) > org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:357) > org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver$.main(SparkSQLCLIDriver.scala:193) > > org.apache.spark.sql.hive.thriftserver.SparkSQLCLIDriver.main(SparkSQLCLIDriver.scala) > sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > java.lang.reflect.Method.invoke(Method.java:498) > org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52) > org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:894) > org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:198) > org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:228) > org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:137) > org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) > > jstack information as follow: > Found one Java-level deadlock: ============================= > "Thread-ScriptTransformation-Feed": waiting to lock monitor > 0x0000000000e0cb18 (object 0x00000002f1641538, a > org.apache.spark.memory.TaskMemoryManager), which is held by "Executor task > launch worker for task 18899" "Executor task launch worker for task 18899": > waiting to lock monitor 0x0000000000e09788 (object 0x0000000302faa3b0, a > org.apache.spark.unsafe.map.BytesToBytesMap$MapIterator), which is held by > "Thread-ScriptTransformation-Feed" Java stack information for the threads > listed above: =================================================== > "Thread-ScriptTransformation-Feed": at > org.apache.spark.memory.TaskMemoryManager.freePage(TaskMemoryManager.java:332) > - waiting to lock <0x00000002f1641538> (a > org.apache.spark.memory.TaskMemoryManager) at > org.apache.spark.memory.MemoryConsumer.freePage(MemoryConsumer.java:130) at > org.apache.spark.unsafe.map.BytesToBytesMap.access$300(BytesToBytesMap.java:66) > at > org.apache.spark.unsafe.map.BytesToBytesMap$MapIterator.advanceToNextPage(BytesToBytesMap.java:274) > - locked <0x0000000302faa3b0> (a > org.apache.spark.unsafe.map.BytesToBytesMap$MapIterator) at > org.apache.spark.unsafe.map.BytesToBytesMap$MapIterator.next(BytesToBytesMap.java:313) > at > org.apache.spark.sql.execution.UnsafeFixedWidthAggregationMap$1.next(UnsafeFixedWidthAggregationMap.java:173) > at > org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage2.processNext(Unknown > Source) at > org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43) > at > org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$10$$anon$1.hasNext(WholeStageCodegenExec.scala:614) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408) at > scala.collection.Iterator$class.foreach(Iterator.scala:893) at > scala.collection.AbstractIterator.foreach(Iterator.scala:1336) at > org.apache.spark.sql.hive.execution.ScriptTransformationWriterThread$$anonfun$run$1.apply$mcV$sp(ScriptTransformationExec.scala:281) > at > org.apache.spark.sql.hive.execution.ScriptTransformationWriterThread$$anonfun$run$1.apply(ScriptTransformationExec.scala:270) > at > org.apache.spark.sql.hive.execution.ScriptTransformationWriterThread$$anonfun$run$1.apply(ScriptTransformationExec.scala:270) > at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1995) at > org.apache.spark.sql.hive.execution.ScriptTransformationWriterThread.run(ScriptTransformationExec.scala:270) > "Executor task launch worker for task 18899": at > org.apache.spark.unsafe.map.BytesToBytesMap$MapIterator.spill(BytesToBytesMap.java:345) > - waiting to lock <0x0000000302faa3b0> (a > org.apache.spark.unsafe.map.BytesToBytesMap$MapIterator) at > org.apache.spark.unsafe.map.BytesToBytesMap.spill(BytesToBytesMap.java:772) > at > org.apache.spark.memory.TaskMemoryManager.acquireExecutionMemory(TaskMemoryManager.java:180) > - locked <0x00000002f1641538> (a org.apache.spark.memory.TaskMemoryManager) > at > org.apache.spark.memory.TaskMemoryManager.allocatePage(TaskMemoryManager.java:283) > at > org.apache.spark.memory.MemoryConsumer.allocatePage(MemoryConsumer.java:117) > at > org.apache.spark.shuffle.sort.ShuffleExternalSorter.acquireNewPageIfNecessary(ShuffleExternalSorter.java:371) > at > org.apache.spark.shuffle.sort.ShuffleExternalSorter.insertRecord(ShuffleExternalSorter.java:394) > at > org.apache.spark.shuffle.sort.UnsafeShuffleWriter.insertRecordIntoSorter(UnsafeShuffleWriter.java:267) > at > org.apache.spark.shuffle.sort.UnsafeShuffleWriter.write(UnsafeShuffleWriter.java:188) > at > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:96) at > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:53) at > org.apache.spark.scheduler.Task.run(Task.scala:109) at > org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:345) at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:748) Found 1 deadlock. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org