不能从 Docker 容器外生产或消费

cetgtptt  于 2021-06-07  发布在  Kafka
关注(0)|答案(3)|浏览(399)

Kafka在码头集装箱里工作得很好。我可以用 docker exec -it [container name] [kafkascript] 并成功地创建主题、生成/使用消息,但当我尝试从docker容器外部使用本地kafka脚本时,我只能创建和列出主题。生成和使用消息会引发错误:
生产: ~/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

消费: `~/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

我使用的是spotify/docker-kafka,但我将其升级到了0.10.0.0,并使用了jshark的一些建议来设置advised.listeners。我在mac电脑上跑步。我创造了一个叫Kafka的 Docker 机器。这是我的docker跑步:

docker run -p 2181:2181 -p 9092:9092 --env ADVERTISED_HOST=`docker-machine ip kafka` --env ADVERTISED_PORT=9092 kafka

这是我的文件:


# 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"]

脚本/start-kafka.sh

sqyvllje

sqyvllje1#

这对我有用:https://stackoverflow.com/a/37655203/1839580
我的总结是 ADVERTISED_HOST 环境变量 spotify/kafka 容器需要更改,这取决于您的服务是在容器内部还是外部运行。我使用docker for mac,并将docker网络设置为bridged。码头外 ADVERTISED_HOST 需要设置为localhost,在docker内部,设置为 myproject_kafka_1 或者你系统里的任何东西。为了解决这个问题,我在macos主机文件中添加了 127.0.0.1myproject_kafka_1 . 我不喜欢弄乱我的主机文件,但它为我解决了这个问题。

127.0.0.1   localhost
127.0.0.1   myproject_kafka_1
wvmv3b1j

wvmv3b1j2#

在将以下条目添加到server.properties之前,我无法从容器外部与kafka进行交互:

listener.security.protocol.map=INSIDE:PLAINTEXT,OUTSIDE:PLAINTEXT

advertised.listeners=INSIDE://${container_ip}:9092,OUTSIDE://${outside_host_ip}:29092

listeners=INSIDE://:9092,OUTSIDE://:29092

inter.broker.listener.name=INSIDE

我在这里贴了一个更完整的答案。希望别人不要像我一样花那么多时间在这件事上。

js4nwp54

js4nwp543#

清洁剂将被设置 advertised.listeners=host-ip:portadvertised.host.name 以及 advertised.port 在Kafka中是不受欢迎的 server.properties 文件。
如果设置 host-ip0.0.0.0 它将监听来自任何地方的请求。但这是不安全的。

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