It says: Caused by: java.net.ConnectException: Connection refused: slave2/...:54845
Could you look in the executor logs (stderr on slave2) and see what made it shut down? Since you are doing a join there's a high possibility of OOM etc. Thanks Best Regards On Wed, Jul 1, 2015 at 10:20 AM, Pooja Jain <pooja.ja...@gmail.com> wrote: > Hi, > > We are using Spark 1.4.0 on hadoop using yarn-cluster mode via > spark-submit. We are facing parquet write issue after doing dataframe joins > > We have a full data set and then an incremental data. We are reading them > as dataframes, joining them, and then writing the data to the hdfs system > in parquet format. We are getting the timeout error on the last partition. > > But if we do a count on the joined data it is working - which gives us the > confidence that join is happening properly. Only in case of writing to the > hdfs it is timing out. > > Code flow: > > // join two data frames - dfBase and dfIncr on primaryKey > val joinedDF = dfBase.join(dfIncr, dfBase(primaryKey) === dfIncr(primaryKey), > "outer") > > // applying a reduce function on each row. > val mergedDF = joinedDF.map(x => > reduceFunc(x) > ) > > //converting back to dataframe > val newdf = Spark.getSqlContext().createDataFrame(mergedDF, dfSchema) > > //writing to parquet file > newdf.write.parquet(hdfsfilepath) > > Getting following exception: > > 15/06/30 22:47:04 WARN spark.HeartbeatReceiver: Removing executor 26 with no > recent heartbeats: 255766 ms exceeds timeout 240000 ms > 15/06/30 22:47:04 ERROR cluster.YarnClusterScheduler: Lost executor 26 on > slave2: Executor heartbeat timed out after 255766 ms > 15/06/30 22:47:04 INFO scheduler.TaskSetManager: Re-queueing tasks for 26 > from TaskSet 7.0 > 15/06/30 22:47:04 WARN scheduler.TaskSetManager: Lost task 6.0 in stage 7.0 > (TID 216, slave2): ExecutorLostFailure (executor 26 lost) > 15/06/30 22:47:04 INFO scheduler.TaskSetManager: Starting task 6.1 in stage > 7.0 (TID 310, slave2, PROCESS_LOCAL, 1910 bytes) > 15/06/30 22:47:04 INFO scheduler.DAGScheduler: Executor lost: 26 (epoch 3) > 15/06/30 22:47:04 INFO cluster.YarnClusterSchedulerBackend: Requesting to > kill executor(s) 26 > 15/06/30 22:47:04 INFO storage.BlockManagerMasterEndpoint: Trying to remove > executor 26 from BlockManagerMaster. > 15/06/30 22:47:04 INFO storage.BlockManagerMasterEndpoint: Removing block > manager BlockManagerId(26, slave2, 54845) > 15/06/30 22:47:04 INFO storage.BlockManagerMaster: Removed 26 successfully in > removeExecutor > 15/06/30 22:47:04 INFO yarn.YarnAllocator: Driver requested a total number of > 26 executor(s). > 15/06/30 22:47:04 INFO scheduler.ShuffleMapStage: ShuffleMapStage 6 is now > unavailable on executor 26 (193/200, false) > 15/06/30 22:47:04 INFO yarn.ApplicationMaster$AMEndpoint: Driver requested to > kill executor(s) 26. > 15/06/30 22:47:06 INFO yarn.ApplicationMaster$AMEndpoint: Driver terminated > or disconnected! Shutting down. slave2:51849 > 15/06/30 22:47:06 ERROR cluster.YarnClusterScheduler: Lost executor 26 on > slave2: remote Rpc client disassociated > 15/06/30 22:47:06 INFO scheduler.TaskSetManager: Re-queueing tasks for 26 > from TaskSet 7.0 > 15/06/30 22:47:06 INFO scheduler.DAGScheduler: Executor lost: 26 (epoch 5) > 15/06/30 22:47:06 INFO storage.BlockManagerMasterEndpoint: Trying to remove > executor 26 from BlockManagerMaster. > 15/06/30 22:47:06 INFO storage.BlockManagerMaster: Removed 26 successfully in > removeExecutor > 15/06/30 22:47:06 WARN remote.ReliableDeliverySupervisor: Association with > remote system [akka.tcp://sparkExecutor@slave2:51849] has failed, address is > now gated for [5000] ms. Reason is: [Disassociated]. > 15/06/30 22:47:06 INFO yarn.ApplicationMaster$AMEndpoint: Driver terminated > or disconnected! Shutting down. slave2:51849 > 15/06/30 22:47:21 WARN scheduler.TaskSetManager: Lost task 6.1 in stage 7.0 > (TID 310, slave2): org.apache.spark.SparkException: Task failed while writing > rows. > at > org.apache.spark.sql.sources.InsertIntoHadoopFsRelation.org$apache$spark$sql$sources$InsertIntoHadoopFsRelation$$writeRows$1(commands.scala:161) > at > org.apache.spark.sql.sources.InsertIntoHadoopFsRelation$$anonfun$insert$1.apply(commands.scala:132) > at > org.apache.spark.sql.sources.InsertIntoHadoopFsRelation$$anonfun$insert$1.apply(commands.scala:132) > at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:63) > at org.apache.spark.scheduler.Task.run(Task.scala:70) > at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: org.apache.spark.shuffle.FetchFailedException: Failed to connect > to slave2/...:54845 > at > org.apache.spark.shuffle.hash.BlockStoreShuffleFetcher$.org$apache$spark$shuffle$hash$BlockStoreShuffleFetcher$$unpackBlock$1(BlockStoreShuffleFetcher.scala:67) > at > org.apache.spark.shuffle.hash.BlockStoreShuffleFetcher$$anonfun$3.apply(BlockStoreShuffleFetcher.scala:84) > at > org.apache.spark.shuffle.hash.BlockStoreShuffleFetcher$$anonfun$3.apply(BlockStoreShuffleFetcher.scala:84) > at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371) > at > org.apache.spark.util.CompletionIterator.hasNext(CompletionIterator.scala:32) > at > org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:39) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327) > at > org.apache.spark.sql.execution.joins.HashOuterJoin.org$apache$spark$sql$execution$joins$HashOuterJoin$$buildHashTable(HashOuterJoin.scala:170) > at > org.apache.spark.sql.execution.joins.HashOuterJoin$$anonfun$doExecute$1.apply(HashOuterJoin.scala:211) > at > org.apache.spark.sql.execution.joins.HashOuterJoin$$anonfun$doExecute$1.apply(HashOuterJoin.scala:188) > at > org.apache.spark.rdd.ZippedPartitionsRDD2.compute(ZippedPartitionsRDD.scala:88) > at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:277) > at org.apache.spark.rdd.RDD.iterator(RDD.scala:244) > at > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:35) > at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:277) > at org.apache.spark.rdd.RDD.iterator(RDD.scala:244) > at > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:35) > at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:277) > at org.apache.spark.rdd.RDD.iterator(RDD.scala:244) > at > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:35) > at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:277) > at org.apache.spark.rdd.RDD.iterator(RDD.scala:244) > at > org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:35) > at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:277) > at org.apache.spark.rdd.RDD.iterator(RDD.scala:244) > at > org.apache.spark.rdd.CoalescedRDD$$anonfun$compute$1.apply(CoalescedRDD.scala:93) > at > org.apache.spark.rdd.CoalescedRDD$$anonfun$compute$1.apply(CoalescedRDD.scala:92) > at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371) > at > org.apache.spark.sql.sources.InsertIntoHadoopFsRelation.org$apache$spark$sql$sources$InsertIntoHadoopFsRelation$$writeRows$1(commands.scala:152) > ... 8 more > Caused by: java.io.IOException: Failed to connect to slave2/...:54845 > at > org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:193) > at > org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:156) > at > org.apache.spark.network.netty.NettyBlockTransferService$$anon$1.createAndStart(NettyBlockTransferService.scala:88) > at > org.apache.spark.network.shuffle.RetryingBlockFetcher.fetchAllOutstanding(RetryingBlockFetcher.java:140) > at > org.apache.spark.network.shuffle.RetryingBlockFetcher.access$200(RetryingBlockFetcher.java:43) > at > org.apache.spark.network.shuffle.RetryingBlockFetcher$1.run(RetryingBlockFetcher.java:170) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > at java.util.concurrent.FutureTask.run(FutureTask.java:262) > ... 3 more > Caused by: java.net.ConnectException: Connection refused: slave2/...:54845 > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) > at > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739) > at > io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:208) > at > io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:287) > at > io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528) > at > io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) > at > io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) > at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) > at > io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) > ... 1 more > >
