我正在使用windows *平台。我正在阅读来自kafka的消息，并希望使用RollingSink存储在文件中。我收到消息但是当我向DataStream添加滚动接收器时，它会抛出Null指针异常。下面是代码和堆栈跟踪。 它正在创建文件夹结构，但没有数据。 即 文件夹2016-07-13--2031和此文件夹中的三个文件 ._part-0-0.in-progress.crc，_part-0-0.in-progress，_part-0-0.pending
StreamExecutionEnvironment sev = StreamExecutionEnvironment.getExecutionEnvironment();
DataStream<String> kafkaStream = sev.addSource(new FlinkKafkaConsumer08<String>("test", new SimpleStringSchema(), properties));
String basePath = "C:\\project\\IOT\\testData\\SinkData";
RollingSink<String> rollingSink = new RollingSink<String>(basePath);
kafkaStream.addSink(rollingSink);
07/14/2016 00:48:48 Job execution switched to status FAILED.
Exception in thread "main" org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply$mcV$sp(JobManager.scala:717)
at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:663)
at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:663)
at `enter code here`scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41)
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:401)
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at scala.concurrent.forkjoin.ForkJoinPool$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 java.lang.ProcessBuilder.start(ProcessBuilder.java:1012)
at org.apache.hadoop.util.Shell.runCommand(Shell.java:445)
at org.apache.hadoop.util.Shell.run(Shell.java:418)
at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:650)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:739)
at org.apache.hadoop.util.Shell.execCommand(Shell.java:722)
at org.apache.hadoop.fs.FileUtil.execCommand(FileUtil.java:1097)
at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:559)
at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.getPermission(RawLocalFileSystem.java:534)
at org.apache.hadoop.fs.LocatedFileStatus.<init>(LocatedFileStatus.java:42)
at org.apache.hadoop.fs.FileSystem$4.next(FileSystem.java:1698)
at org.apache.hadoop.fs.FileSystem$4.next(FileSystem.java:1680)
at org.apache.hadoop.fs.FileSystem$5.hasNext(FileSystem.java:1733)
at org.apache.flink.streaming.connectors.fs.RollingSink.open(RollingSink.java:339)
at org.apache.flink.api.common.functions.util.FunctionUtils.openFunction(FunctionUtils.java:38)
at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.open(AbstractUdfStreamOperator.java:91)
at org.apache.flink.streaming.runtime.tasks.StreamTask.openAllOperators(StreamTask.java:317)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:215)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559)
at java.lang.Thread.run(Thread.java:745)