Hi,
I'm suddenly getting this error while running the code in systemML. For smaller number of data points it running fine. But when I'm increasing the data point, it's throwing this error.I'm using system with 244 gb ram 32 cores and 100 gb hard disk space and putting pyspark configurations in the notebook only. 17/07/14 21:49:25 WARN TaskSetManager: Stage 394647 contains a task of very large size (558 KB). The maximum recommended task size is 100 KB. 17/07/14 21:54:18 ERROR ContextCleaner: Error cleaning broadcast 431882 org.apache.spark.rpc.RpcTimeoutException: Futures timed out after [120 seconds]. This timeout is controlled by spark.rpc .askTimeout at org.apache.spark.rpc.RpcTimeout.org$apache$spark$rpc$RpcTimeout$$createRpcTimeoutException(RpcTimeout.scala:4 8) at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:63) at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:59) at scala.PartialFunction$OrElse.apply(PartialFunction.scala:167) at org.apache.spark.rpc.RpcTimeout.awaitResult(RpcTimeout.scala:83) at org.apache.spark.storage.BlockManagerMaster.removeBroadcast(BlockManagerMaster.scala:151) at org.apache.spark.broadcast.TorrentBroadcast$.unpersist(TorrentBroadcast.scala:299) at org.apache.spark.broadcast.TorrentBroadcastFactory.unbroadcast(TorrentBroadcastFactory.scala:45) at org.apache.spark.broadcast.BroadcastManager.unbroadcast(BroadcastManager.scala:60) at org.apache.spark.ContextCleaner.doCleanupBroadcast(ContextCleaner.scala:232) at org.apache.spark.ContextCleaner$$anonfun$org$apache$spark$ContextCleaner$$keepCleaning$1$$anonfun$apply$mcV$s p$2.apply(ContextCleaner.scala:188) at org.apache.spark.ContextCleaner$$anonfun$org$apache$spark$ContextCleaner$$keepCleaning$1$$anonfun$apply$mcV$s p$2.apply(ContextCleaner.scala:179) at scala.Option.foreach(Option.scala:257) at org.apache.spark.ContextCleaner$$anonfun$org$apache$spark$ContextCleaner$$keepCleaning$1.apply$mcV$sp(Context Cleaner.scala:179) at org.apache.spark.util.Utils$.tryOrStopSparkContext(Utils.scala:1245) at org.apache.spark.ContextCleaner.org$apache$spark$ContextCleaner$$keepCleaning(ContextCleaner.scala:172) at org.apache.spark.ContextCleaner$$anon$1.run(ContextCleaner.scala:67) Caused by: java.util.concurrent.TimeoutException: Futures timed out after [120 seconds] at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:219) at scala.concurrent.impl.Promise$DefaultPromise.result(Promise.scala:223) at scala.concurrent.Await$$anonfun$result$1.apply(package.scala:190) at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53) at scala.concurrent.Await$.result(package.scala:190) at org.apache.spark.rpc.RpcTimeout.awaitResult(RpcTimeout.scala:81) ... 12 more 17/07/14 21:54:18 WARN BlockManagerMaster: Failed to remove broadcast 431882 with removeFromMaster = true - Cannot recei ve any reply in 120 seconds. This timeout is controlled by spark.rpc.askTimeout org.apache.spark.rpc.RpcTimeoutException: Cannot receive any reply in 120 seconds. This timeout is controlled by spark.r pc.askTimeout at org.apache.spark.rpc.RpcTimeout.org$apache$spark$rpc$RpcTimeout$$createRpcTimeoutException(RpcTimeout.scala:4 8) at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:63) at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:59) at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36) at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:216) at scala.util.Try$.apply(Try.scala:192) at scala.util.Failure.recover(Try.scala:216) at scala.concurrent.Future$$anonfun$recover$1.apply(Future.scala:326) at scala.concurrent.Future$$anonfun$recover$1.apply(Future.scala:326) at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) at org.spark_project.guava.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:29 3) at scala.concurrent.impl.ExecutionContextImpl$$anon$1.execute(ExecutionContextImpl.scala:136) at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40) at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248) at scala.concurrent.Promise$class.complete(Promise.scala:55) at scala.concurrent.impl.Promise$DefaultPromise.complete(Promise.scala:153) at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:237) at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:237) at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.processBatch$1(BatchingExecutor.scala:63) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:78) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:55) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:55) at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72) at scala.concurrent.BatchingExecutor$Batch.run(BatchingExecutor.scala:54) at scala.concurrent.Future$InternalCallbackExecutor$.unbatchedExecute(Future.scala:601) at scala.concurrent.BatchingExecutor$class.execute(BatchingExecutor.scala:106) at scala.concurrent.Future$InternalCallbackExecutor$.execute(Future.scala:599) at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40) at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248) at scala.concurrent.Promise$class.tryFailure(Promise.scala:112) at scala.concurrent.impl.Promise$DefaultPromise.tryFailure(Promise.scala:153) at org.apache.spark.rpc.netty.NettyRpcEnv.org$apache$spark$rpc$netty$NettyRpcEnv$$onFailure$1(NettyRpcEnv.scala: 205) at org.apache.spark.rpc.netty.NettyRpcEnv$$anon$1.run(NettyRpcEnv.scala:239) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.util.concurrent.TimeoutException: Cannot receive any reply in 120 seconds ... 8 more 17/07/14 21:54:18 WARN BlockManagerMaster: Failed to remove broadcast 432310 with removeFromMaster = true - Cannot recei ve any reply in 120 seconds. This timeout is controlled by spark.rpc.askTimeout org.apache.spark.rpc.RpcTimeoutException: Cannot receive any reply in 120 seconds. This timeout is controlled by spark.r pc.askTimeout at org.apache.spark.rpc.RpcTimeout.org$apache$spark$rpc$RpcTimeout$$createRpcTimeoutException(RpcTimeout.scala:4 8) at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:63) at org.apache.spark.rpc.RpcTimeout$$anonfun$addMessageIfTimeout$1.applyOrElse(RpcTimeout.scala:59) at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36) at scala.util.Failure$$anonfun$recover$1.apply(Try.scala:216) at scala.util.Try$.apply(Try.scala:192) at scala.util.Failure.recover(Try.scala:216) at scala.concurrent.Future$$anonfun$recover$1.apply(Future.scala:326) at scala.concurrent.Future$$anonfun$recover$1.apply(Future.scala:326) at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) at org.spark_project.guava.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:29 3) at scala.concurrent.impl.ExecutionContextImpl$$anon$1.execute(ExecutionContextImpl.scala:136) at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40) at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248) at scala.concurrent.Promise$class.complete(Promise.scala:55) at scala.concurrent.impl.Promise$DefaultPromise.complete(Promise.scala:153) at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:237) at scala.concurrent.Future$$anonfun$map$1.apply(Future.scala:237) at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.processBatch$1(BatchingExecutor.scala:63) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:78) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:55) at scala.concurrent.BatchingExecutor$Batch$$anonfun$run$1.apply(BatchingExecutor.scala:55) at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72) at scala.concurrent.BatchingExecutor$Batch.run(BatchingExecutor.scala:54) at scala.concurrent.Future$InternalCallbackExecutor$.unbatchedExecute(Future.scala:601) at scala.concurrent.BatchingExecutor$class.execute(BatchingExecutor.scala:106) at scala.concurrent.Future$InternalCallbackExecutor$.execute(Future.scala:599) at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:40) at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:248) at scala.concurrent.Promise$class.tryFailure(Promise.scala:112) at scala.concurrent.impl.Promise$DefaultPromise.tryFailure(Promise.scala:153) at org.apache.spark.rpc.netty.NettyRpcEnv.org$apache$spark$rpc$netty$NettyRpcEnv$$onFailure$1(NettyRpcEnv.scala: 205) at org.apache.spark.rpc.netty.NettyRpcEnv$$anon$1.run(NettyRpcEnv.scala:239) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.util.concurrent.TimeoutException: Cannot receive any reply in 120 seconds ... 8 more 17/07/14 21:54:18 WARN NettyRpcEnv: Ignored message: 0 17/07/14 21:54:18 WARN NettyRpcEnv: Ignored message: 0 Thank you! Arijit