Hi there, I have a cluster of 10 nodes with 12 CPUs each. This is my configuration:
jobmanager.rpc.port: 6123 jobmanager.heap.mb: 4024 taskmanager.heap.mb: 8096 taskmanager.numberOfTaskSlots: 12 parallelization.degree.default: 120 I have been getting the following error: java.lang.Exception: Failed to deploy the task Reduce (SUM(1)) (65/120) - execution #0 to slot SimpleSlot (1)(0) - efc370a0b2a9a63f2e7b960cfe4e4c27 - ALLOCATED/ALIVE: java.io.IOException: Insufficient number of network buffers: required 120, but only 2 of 2048 available. at org.apache.flink.runtime.io.network.buffer.NetworkBufferPool.createBufferPool(NetworkBufferPool.java:155) at org.apache.flink.runtime.io.network.NetworkEnvironment.registerTask(NetworkEnvironment.java:163) at org.apache.flink.runtime.taskmanager.TaskManager.org $apache$flink$runtime$taskmanager$TaskManager$$submitTask(TaskManager.scala:426) at org.apache.flink.runtime.taskmanager.TaskManager$$anonfun$receiveWithLogMessages$1.applyOrElse(TaskManager.scala:261) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25) at org.apache.flink.runtime.ActorLogMessages$$anon$1.apply(ActorLogMessages.scala:37) at org.apache.flink.runtime.ActorLogMessages$$anon$1.apply(ActorLogMessages.scala:30) at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118) at org.apache.flink.runtime.ActorLogMessages$$anon$1.applyOrElse(ActorLogMessages.scala:30) at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at org.apache.flink.runtime.taskmanager.TaskManager.aroundReceive(TaskManager.scala:89) at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516) at akka.actor.ActorCell.invoke(ActorCell.scala:487) at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254) at akka.dispatch.Mailbox.run(Mailbox.scala:221) at akka.dispatch.Mailbox.exec(Mailbox.scala:231) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) at org.apache.flink.runtime.executiongraph.Execution$2.onComplete(Execution.java:344) at akka.dispatch.OnComplete.internal(Future.scala:247) at akka.dispatch.OnComplete.internal(Future.scala:244) at akka.dispatch.japi$CallbackBridge.apply(Future.scala:174) at akka.dispatch.japi$CallbackBridge.apply(Future.scala:171) at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) at scala.concurrent.impl.ExecutionContextImpl$$anon$3.exec(ExecutionContextImpl.scala:107) at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) I failed to get any info online on how to solve it. Any help would be welcome. Thank you!
