As I am trying to integrate Kafka into Spark, the following exception occurs:
org.apache.spark.SparkException: java.nio.channels.ClosedChannelException org.apache.spark.SparkException: Couldn't find leader offsets for Set([*<topicName>*,0]) at org.apache.spark.streaming.kafka.KafkaCluster$$anonfun$checkErrors$1.apply(KafkaCluster.scala:366) at org.apache.spark.streaming.kafka.KafkaCluster$$anonfun$checkErrors$1.apply(KafkaCluster.scala:366) at scala.util.Either.fold(Either.scala:97) at org.apache.spark.streaming.kafka.KafkaCluster$.checkErrors(KafkaCluster.scala:365) at org.apache.spark.streaming.kafka.KafkaUtils$.getFromOffsets(KafkaUtils.scala:222) at org.apache.spark.streaming.kafka.KafkaUtils$.createDirectStream(KafkaUtils.scala:484) at org.mediasoft.spark.Driver$.main(Driver.scala:42) at .<init>(<console>:11) at .<clinit>(<console>) at .<init>(<console>:7) at .<clinit>(<console>) at $print(<console>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:483) at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:734) at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:983) at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:573) at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:604) at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:568) at scala.tools.nsc.interpreter.ILoop.reallyInterpret$1(ILoop.scala:760) at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:805) at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:717) at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:581) at scala.tools.nsc.interpreter.ILoop.innerLoop$1(ILoop.scala:588) at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:591) at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply$mcZ$sp(ILoop.scala:882) at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837) at scala.tools.nsc.interpreter.ILoop$$anonfun$process$1.apply(ILoop.scala:837) at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135) at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:837) at scala.tools.nsc.interpreter.ILoop.main(ILoop.scala:904) at org.jetbrains.plugins.scala.compiler.rt.ConsoleRunner.main(ConsoleRunner.java:64) 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:483) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) As for the Spark configuration: val conf: SparkConf = new SparkConf().setAppName("AppName").setMaster("local[2]") val confParams: Map[String, String] = Map( "metadata.broker.list" -> "<IP_ADDRESS>:9092", "auto.offset.reset" -> "largest" ) val topics: Set[String] = Set("<topic_name>") val context: StreamingContext = new StreamingContext(conf, Seconds(1)) val kafkaStream = KafkaUtils.createDirectStream(context,confParams, topics) kafkaStream.foreachRDD(rdd => { rdd.collect().foreach(println) }) context.awaitTermination() context.start() The Kafka topic does exist, Kafka server is up and running and I am able to produce messages to that particular topic using the Confluent REST API. What might the problem actually be? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Apache-Spark-Kafka-Integration-org-apache-spark-SparkException-Couldn-t-find-leader-offsets-for-Set-tp27103.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org