Spark job blocked by updatedependencies -


i ran spark job in yarn, blocked bad network here exceptions:

「 ：at sun.nio.ch.filedispatcherimpl.read0(native method)  	at sun.nio.ch.filedispatcherimpl.read(filedispatcherimpl.java:46)  	at sun.nio.ch.ioutil.readintonativebuffer(ioutil.java:223)  	at sun.nio.ch.ioutil.read(ioutil.java:197)  	at sun.nio.ch.sourcechannelimpl.read(sourcechannelimpl.java:167)  	at org.apache.spark.rpc.netty.nettyrpcenv$filedownloadchannel$$anonfun$1.apply$mci$sp(nettyrpcenv.scala:371)  	at org.apache.spark.rpc.netty.nettyrpcenv$filedownloadchannel$$anonfun$1.apply(nettyrpcenv.scala:371)  	at org.apache.spark.rpc.netty.nettyrpcenv$filedownloadchannel$$anonfun$1.apply(nettyrpcenv.scala:371)  	at scala.util.try$.apply(try.scala:192)  	at org.apache.spark.rpc.netty.nettyrpcenv$filedownloadchannel.read(nettyrpcenv.scala:371)  	at sun.nio.ch.channelinputstream.read(channelinputstream.java:65)  	at sun.nio.ch.channelinputstream.read(channelinputstream.java:109)  	at sun.nio.ch.channelinputstream.read(channelinputstream.java:103)  	at java.io.inputstream.read(inputstream.java:101)  	at org.apache.spark.util.utils$$anonfun$copystream$1.apply$mcj$sp(utils.scala:354)  	at org.apache.spark.util.utils$$anonfun$copystream$1.apply(utils.scala:322)  	at org.apache.spark.util.utils$$anonfun$copystream$1.apply(utils.scala:322)  	at org.apache.spark.util.utils$.trywithsafefinally(utils.scala:1303)  	at org.apache.spark.util.utils$.copystream(utils.scala:362)  	at org.apache.spark.util.utils$.downloadfile(utils.scala:509)  	at org.apache.spark.util.utils$.dofetchfile(utils.scala:639)  	at org.apache.spark.util.utils$.fetchfile(utils.scala:450)  	at org.apache.spark.executor.executor$$anonfun$org$apache$spark$executor$executor$$updatedependencies$5.apply(executor.scala:659)  	at org.apache.spark.executor.executor$$anonfun$org$apache$spark$executor$executor$$updatedependencies$5.apply(executor.scala:651)  	at scala.collection.traversablelike$withfilter$$anonfun$foreach$1.apply(traversablelike.scala:733)  	at scala.collection.mutable.hashmap$$anonfun$foreach$1.apply(hashmap.scala:99)  	at scala.collection.mutable.hashmap$$anonfun$foreach$1.apply(hashmap.scala:99)  	at scala.collection.mutable.hashtable$class.foreachentry(hashtable.scala:230)  	at scala.collection.mutable.hashmap.foreachentry(hashmap.scala:40)  	at scala.collection.mutable.hashmap.foreach(hashmap.scala:99)  	at scala.collection.traversablelike$withfilter.foreach(traversablelike.scala:732)  	at org.apache.spark.executor.executor.org$apache$spark$executor$executor$$updatedependencies(executor.scala:651)  	at org.apache.spark.executor.executor$taskrunner.run(executor.scala:297)  	at java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142)  	at java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617)  	at java.lang.thread.run(thread.java:748)      」  --------

as inputstream.read() block method. want add read timeout filedownloadchannel. 

  override def openchannel(uri: string): readablebytechannel = {      val parseduri = new uri(uri)      require(parseduri.gethost() != null, "host name must defined.")      require(parseduri.getport() > 0, "port must defined.")      require(parseduri.getpath() != null && parseduri.getpath().nonempty, "path must defined.")        val pipe = pipe.open()      val source = new filedownloadchannel(pipe.source())      try {        val client = downloadclient(parseduri.gethost(), parseduri.getport())        val callback = new filedownloadcallback(pipe.sink(), source, client)        client.stream(parseduri.getpath(), callback)      } catch {        case e: exception =>          pipe.sink().close()          source.close()          throw e      }        source    }

any suggestions or ideas??


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