Github user rmetzger commented on the pull request: https://github.com/apache/flink/pull/1524#issuecomment-182065768 I identified the following issues: - Setting the configuration using the yarn session "dynamic properties": `./bin/yarn-session.sh -n 2 -Dfs.default-scheme=hdfs:///` does not really work (the configuration parameter shows up in the web interface, but the job fails) - Setting a false schema leads to a null pointer exception on job submission. In the flink-conf.yaml, I have `fs.default-scheme: thisIsWrong`. Look at this: ``` org.apache.flink.client.program.ProgramInvocationException: The program execution failed: Cannot initialize task 'DataSink (CsvOutputFormat (path: /user/robert/elasdoijwef, delimiter: ))': null at org.apache.flink.client.program.Client.runBlocking(Client.java:381) at org.apache.flink.client.program.Client.runBlocking(Client.java:355) at org.apache.flink.client.program.Client.runBlocking(Client.java:315) at org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:60) at org.apache.flink.examples.java.wordcount.WordCount.main(WordCount.java:78) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:505) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:403) at org.apache.flink.client.program.Client.runBlocking(Client.java:248) at org.apache.flink.client.CliFrontend.executeProgramBlocking(CliFrontend.java:804) at org.apache.flink.client.CliFrontend.run(CliFrontend.java:331) at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1127) at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1175) Caused by: org.apache.flink.runtime.client.JobExecutionException: Cannot initialize task 'DataSink (CsvOutputFormat (path: /user/robert/elasdoijwef, delimiter: ))': null at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$6.apply(JobManager.scala:981) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$6.apply(JobManager.scala:965) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at scala.collection.AbstractIterator.foreach(Iterator.scala:1157) at scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at scala.collection.AbstractIterable.foreach(Iterable.scala:54) at org.apache.flink.runtime.jobmanager.JobManager.org$apache$flink$runtime$jobmanager$JobManager$$submitJob(JobManager.scala:965) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1.applyOrElse(JobManager.scala:378) at scala.runtime.AbstractPartialFunction$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.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33) at scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25) at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33) at org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28) at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118) at org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28) at akka.actor.Actor$class.aroundReceive(Actor.scala:465) at org.apache.flink.runtime.jobmanager.JobManager.aroundReceive(JobManager.scala:105) 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) Caused by: java.lang.NullPointerException at org.apache.flink.core.fs.FileSystem.get(FileSystem.java:255) at org.apache.flink.core.fs.Path.getFileSystem(Path.java:311) at org.apache.flink.api.common.io.FileOutputFormat.initializeGlobal(FileOutputFormat.java:275) at org.apache.flink.runtime.jobgraph.OutputFormatVertex.initializeOnMaster(OutputFormatVertex.java:84) at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$org$apache$flink$runtime$jobmanager$JobManager$$submitJob$6.apply(JobManager.scala:977) ... 29 more robert@cdh544-master:~/flink/build-target$ ./bin/flink run ./examples/batch/WordCount.jar /user/robert/tpch-100lineitems.csv /user/robert/elasdoijwef ```
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