Dear sir/madame My name is Dimitris Pappas and i am a research assistant in Athena R.C. in athens.
I downloaded the standalone version of kafka and tried to create consumers and producers on other machines. The producers and consumers built, which were listening to 'localhost' worked like a charm. On the contrary, consumers and producers built on another machine, trying to send data or consume data from the ip of the machine running the kafka server and the zookeeper, did not perform as expected. Is a there a simple guide to set up such a grid of machines? the error that i get is the following on the kafka server: [2016-04-20 17:34:10,244] ERROR [KafkaApi-0] error when handling request null (kafka.server.KafkaApis) kafka.admin.AdminOperationException: replication factor: 3 larger than available brokers: 1 at kafka.admin.AdminUtils$.assignReplicasToBrokers(AdminUtils.scala:77) at kafka.admin.AdminUtils$.createTopic(AdminUtils.scala:236) at kafka.server.KafkaApis$$anonfun$20.apply(KafkaApis.scala:565) at kafka.server.KafkaApis$$anonfun$20.apply(KafkaApis.scala:555) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:245) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:245) at scala.collection.immutable.Set$Set1.foreach(Set.scala:79) at scala.collection.TraversableLike$class.map(TraversableLike.scala:245) at scala.collection.AbstractSet.scala$collection$SetLike$$super$map(Set.scala:47) at scala.collection.SetLike$class.map(SetLike.scala:92) at scala.collection.AbstractSet.map(Set.scala:47) at kafka.server.KafkaApis.getTopicMetadata(KafkaApis.scala:555) at kafka.server.KafkaApis.handleGroupCoordinatorRequest(KafkaApis.scala:702) at kafka.server.KafkaApis.handle(KafkaApis.scala:78) at kafka.server.KafkaRequestHandler.run(KafkaRequestHandler.scala:60) at java.lang.Thread.run(Thread.java:745) I would be grateful if you could help me with the forth-mentioned problem. Thank you in advance Dimitris Pappas --- Αυτό το e-mail ελέγχθηκε για ιούς από το πρόγραμμα Avast antivirus. https://www.avast.com/antivirus