Hi! thank you for your replies! I increased the number of network buffers:
taskmanager.network.numberOfBuffers: 2048 but I am still getting the same error: Insufficient number of network buffers: required 120, but only 2 of 2048 available. Thanks a lot! On 18 February 2015 at 20:27, Fabian Hueske <fhue...@gmail.com> wrote: > Hi Yiannis, > > if you scale Flink to larger setups you need to adapt the number of > network buffers. > The background section of the configuration reference explains the details > on that [1]. > > Let us know, if that helped to solve the problem. > > Best, Fabian > > [1] http://flink.apache.org/docs/0.8/config.html#background > > 2015-02-18 21:18 GMT+01:00 Yiannis Gkoufas <johngou...@gmail.com>: > >> 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! >> > >
