Impossible d'envoyer des événements json tweets à Kafka sujet/producteur en utilisant la ligne de commande kafka

Question

J'ai créé un script python raw_tweets_stream.py pour diffuser des données twitter en utilisant twitter api. Les données json de twitter sont envoyées au producteur kafka en utilisant le script ci-dessous.

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`python raw_tweets_stream.py | /usr/hdp/current/kafka-broker/bin/kafka-console-producer.sh --broker-list localhost:2181 --topic raw_json_tweets` 

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raw_json_tweets est le sujet de kafka créé pour ces tweets. Le script python raw_tweets_stream.py fonctionne très bien mais il génère une erreur en l'envoyant au producteur kafka. J'utilise le bac à sable Hortonworks HDP 2.3.1 et je me suis assuré que le zookeeper et le kafka sont démarrés.

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/usr/hdp/current/kafka-broker/bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic raw_json_tweets

Topic:raw_json_tweets  PartitionCount:1  ReplicationFactor:1  Configs: 
      Topic: raw_json_tweets  Partition: 0 Leader: 0  Replicas: 0  Isr: 0 

Erreur:

[2016-08-25 22:36:26,212] ERROR Failed to send requests for topics raw_json_tweets with correlation ids in [57,64] (kafka.producer.async.DefaultEventHandler) 
[2016-08-25 22:36:26,213] ERROR Error in handling batch of 131 events (kafka.producer.async.ProducerSendThread) 
kafka.common.FailedToSendMessageException: Failed to send messages after 3 tries. 
     at kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:91) 
     at kafka.producer.async.ProducerSendThread.tryToHandle(ProducerSendThread.scala:105) 
     at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:88) 
     at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:68) 
     at scala.collection.immutable.Stream.foreach(Stream.scala:547) 
     at kafka.producer.async.ProducerSendThread.processEvents(ProducerSendThread.scala:67) 
     at kafka.producer.async.ProducerSendThread.run(ProducerSendThread.scala:45) 
[2016-08-25 22:36:27,217] WARN Fetching topic metadata with correlation id 65 for topics [Set(json_tweets1)] from broker [BrokerEndPoint(0,localhost,2181)] failed (kafka.client.ClientUtils$) 
java.io.EOFException: Received -1 when reading from channel, socket has likely been closed. 
     at kafka.utils.CoreUtils$.read(CoreUtils.scala:193) 
     at kafka.network.BoundedByteBufferReceive.readFrom(BoundedByteBufferReceive.scala:54) 
     at kafka.network.Receive$class.readCompletely(Transmission.scala:56) 
     at kafka.network.BoundedByteBufferReceive.readCompletely(BoundedByteBufferReceive.scala:29) 
     at kafka.network.BlockingChannel.receive(BlockingChannel.scala:131) 
     at kafka.producer.SyncProducer.liftedTree1$1(SyncProducer.scala:77) 
     at kafka.producer.SyncProducer.kafka$producer$SyncProducer$$doSend(SyncProducer.scala:74) 
     at kafka.producer.SyncProducer.send(SyncProducer.scala:115) 
     at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:59) 
     at kafka.producer.BrokerPartitionInfo.updateInfo(BrokerPartitionInfo.scala:82) 
     at kafka.producer.BrokerPartitionInfo.getBrokerPartitionInfo(BrokerPartitionInfo.scala:49) 
     at kafka.producer.async.DefaultEventHandler.kafka$producer$async$DefaultEventHandler$$getPartitionListForTopic(DefaultEventHandler.scala:188) 
     at kafka.producer.async.DefaultEventHandler$$anonfun$partitionAndCollate$1.apply(DefaultEventHandler.scala:152) 
     at kafka.producer.async.DefaultEventHandler$$anonfun$partitionAndCollate$1.apply(DefaultEventHandler.scala:151) 
     at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) 
     at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47) 
     at kafka.producer.async.DefaultEventHandler.partitionAndCollate(DefaultEventHandler.scala:151) 
     at kafka.producer.async.DefaultEventHandler.dispatchSerializedData(DefaultEventHandler.scala:96) 
     at kafka.producer.async.DefaultEventHandler.handle(DefaultEventHandler.scala:73) 
     at kafka.producer.async.ProducerSendThread.tryToHandle(ProducerSendThread.scala:105) 
     at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:88) 
     at kafka.producer.async.ProducerSendThread$$anonfun$processEvents$3.apply(ProducerSendThread.scala:68) 
     at scala.collection.immutable.Stream.foreach(Stream.scala:547) 
     at kafka.producer.async.ProducerSendThread.processEvents(ProducerSendThread.scala:67) 
     at kafka.producer.async.ProducerSendThread.run(ProducerSendThread.scala:45) 

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Mise à jour: Solution

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1. Nous sommes allés à Ambari Services et avons modifié le répertoire des journaux Kafka en /tmp/kafka-logs.

2. Modification du script d'origine pour inclure le port et le nom d'hôte corrects.

   python raw_tweets_stream.py | /usr/hdp/current/kafka-broker/bin/kafka-console-producer.sh --broker-list sandbox.hortonworks.com:6667 --topic raw_json_tweets

3. vérifié que les événements sont envoyés au sujet de kafka à l'aide des consommateurs de la console.

   /usr/hdp/2.3.0.0-2557/kafka/bin/kafka-console-consumer.sh -zookeeper sandbox.hortonworks.com:2181 -topic raw_json_tweets -from-beginning

Answer 1

On dirait que vous vous pointez la --broker-list à Zookeeper (2181) au lieu vous devez indiquer au courtier kafka dont le port par défaut est 9092 ou 6667 sur Ambari.