Accept error: could not accept new connection java.io.IOException: Too many open files

[liu-hongwei]

hi,

i saw tons of below errors on spark job server when my app sent multi requests to the server.

is this a bug? how to fix it?

[2015-01-27 16:40:59,292] ERROR akka.io.TcpListener [] [akka://JobServer/system/IO-TCP/selectors/$a/0] - Accept error: could not accept new connection
java.io.IOException: Too many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:241)
at akka.io.TcpListener.acceptAllPending(TcpListener.scala:96)
at akka.io.TcpListener$$anonfun$bound$1.applyOrElse(TcpListener.scala:76)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:498)
at akka.actor.ActorCell.invoke(ActorCell.scala:456)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237)
at akka.dispatch.Mailbox.run(Mailbox.scala:219)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386)
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)

[troypayne]

+1