I haven't run the sandbox but check if the kafka server is started at all. ps -ef | grep kafka
2014-12-05 14:34 GMT+01:00 Marco <marco....@gmail.com>: > Hi, > > I've installed the Hortonworks Sandbox and try to get into Kafka. > > Unfortunately, even the simple tutorial does not work :( > http://kafka.apache.org/documentation.html#introduction > > If I try to send a message via > > bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test > > I get > > ERROR Producer connection to localhost:9092 unsuccessful > (kafka.producer.SyncProducer) > > java.net.ConnectException: Connection refused > at sun.nio.ch.Net.connect0(Native Method) > at sun.nio.ch.Net.connect(Net.java:465) > at sun.nio.ch.Net.connect(Net.java:457) > at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:670) > at kafka.network.BlockingChannel.connect(BlockingChannel.scala:57) > at kafka.producer.SyncProducer.connect(SyncProducer.scala:141) > at > kafka.producer.SyncProducer.getOrMakeConnection(SyncProducer.scala:156) > at > kafka.producer.SyncProducer.kafka$producer$SyncProducer$$doSend(SyncProducer.scala:68) > at kafka.producer.SyncProducer.send(SyncProducer.scala:112) > at > kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:53) > at > kafka.producer.BrokerPartitionInfo.updateInfo(BrokerPartitionInfo.scala:82) > at > kafka.producer.async.DefaultEventHandler$$anonfun$handle$1.apply$mcV$sp(DefaultEventHandler.scala:67) > at kafka.utils.Utils$.swallow(Utils.scala:167) > at kafka.utils.Logging$class.swallowError(Logging.scala:106) > at kafka.utils.Utils$.swallowError(Utils.scala:46) > at > kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:67) > at > kafka.producer.async.ProducerSendThread.tryToHandle(ProducerSendThread.scala:104) > at > kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:87) > at > kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:67) > at scala.collection.immutable.Stream.foreach(Stream.scala:547) > at > kafka.producer.async.ProducerSendThread.processEvents(ProducerSendThread.scala:66) > > In my server.properties the > host is set to host.name=sandbox.hortonworks.com, which is correct. > > Thanks for any help, > Marco > > > > -- > Viele Grüße, > Marco >
