Kafka отлично работает в контейнере докера. Я могу использовать docker exec -it [container name] [kafkascript]
и успешно создавать темы, создавать/потреблять сообщения, но когда я пытаюсь извне контейнера докеров использовать локальные скрипты kafka, я могу создавать и публиковать темы. Производство и потребление сообщений бросает ошибки:Kafka Docker - не может производить или потреблять снаружи контейнера-докера
Производить:
~/development/lib/kafka/kafka_2.11-0.10.0.0$ bin/kafka-console-producer.sh --broker-list $(docker-machine ip kafka):9092 --topic test asdf
[2016-09-18 10:13:48,999] ERROR Error when sending message to topic test with key: null, value: 4 bytes with error: (org.apache.kafka.clients.producer.internals.ErrorLoggingCallback)
org.apache.kafka.common.errors.TimeoutException: Batch containing 1 record(s) expired due to timeout while requesting metadata from brokers for test-0
Потребляя:
~/development/lib/kafka/kafka_2.11-0.10.0.0$ bin/kafka-console-consumer.sh --zookeeper $(docker-machine ip kafka):2181 --topic test --from-beginning
[2016-09-18 09:57:10,389] WARN Fetching topic metadata with correlation id 0 for topics [Set(test)] from broker [BrokerEndPoint(0,ba762186182f,9092)] failed (kafka.client.ClientUtils$)
java.nio.channels.ClosedChannelException
at kafka.network.BlockingChannel.send(BlockingChannel.scala:110)
at kafka.producer.SyncProducer.liftedTree1$1(SyncProducer.scala:80)
at kafka.producer.SyncProducer.kafka$producer$SyncProducer$$doSend(SyncProducer.scala:79)
at kafka.producer.SyncProducer.send(SyncProducer.scala:124)
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:59)
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:94)
at kafka.consumer.ConsumerFetcherManager$LeaderFinderThread.doWork(ConsumerFetcherManager.scala:66)
at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:63)
[2016-09-18 09:57:10,392] WARN [console-consumer-34526_3c15c2c24040-1474210630122-9404562b-leader-finder-thread], Failed to find leader for Set([test,0]) (kafka.consumer.ConsumerFetcherManager$LeaderFinderThread)
kafka.common.KafkaException: fetching topic metadata for topics [Set(test)] from broker [ArrayBuffer(BrokerEndPoint(0,ba762186182f,9092))] failed
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:73)
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:94)
at kafka.consumer.ConsumerFetcherManager$LeaderFinderThread.doWork(ConsumerFetcherManager.scala:66)
at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:63)
Caused by: java.nio.channels.ClosedChannelException
at kafka.network.BlockingChannel.send(BlockingChannel.scala:110)
at kafka.producer.SyncProducer.liftedTree1$1(SyncProducer.scala:80)
at kafka.producer.SyncProducer.kafka$producer$SyncProducer$$doSend(SyncProducer.scala:79)
at kafka.producer.SyncProducer.send(SyncProducer.scala:124)
at kafka.client.ClientUtils$.fetchTopicMetadata(ClientUtils.scala:59)
... 3 more
Я использую spotify/docker-kafka, но я обновил его до 0.10.0.0 и использовал некоторые предложения от jshark, которые настраивают рекламируемые.listeners. Я работаю на Mac. Я создал докер-машину под названием kafka. Вот мой докер пробег:
docker run -p 2181:2181 -p 9092:9092 --env ADVERTISED_HOST=`docker-machine ip kafka` --env ADVERTISED_PORT=9092 kafka
Вот мой dockerfile:
# Kafka and Zookeeper
FROM java:openjdk-8-jre
ENV DEBIAN_FRONTEND noninteractive
ENV SCALA_VERSION 2.11
ENV KAFKA_VERSION 0.10.0.0
ENV KAFKA_HOME /opt/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION"
# Install Kafka, Zookeeper and other needed things
RUN apt-get update && \
apt-get install -y zookeeper wget supervisor dnsutils && \
rm -rf /var/lib/apt/lists/* && \
apt-get clean && \
wget -q http://apache.mirrors.spacedump.net/kafka/"$KAFKA_VERSION"/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION".tgz -O /tmp/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION".tgz && \
tar xfz /tmp/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION".tgz -C /opt && \
rm /tmp/kafka_"$SCALA_VERSION"-"$KAFKA_VERSION".tgz
ADD scripts/start-kafka.sh /usr/bin/start-kafka.sh
# Supervisor config
ADD supervisor/kafka.conf supervisor/zookeeper.conf /etc/supervisor/conf.d/
# 2181 is zookeeper, 9092 is kafka
EXPOSE 2181
EXPOSE 9092
CMD ["supervisord", "-n"]