Kafka Broker for Hyperledger Fabric无法建立连接 [英] Kafka Brokers for Hyperledger Fabric could not establish a connection

问题描述

在为超级账本结构配置我的kafka经纪人docker容器时，我需要一些帮助。我的设置将是一个由4个经纪人组成的集群，介绍第二个经纪人时遇到问题。目前所有经纪人都坐在一台计算机上，我需要他们发布外部地址，以便我在不同计算机上的订购者可以发现它们。

I need some assistance with configuring my kafka brokers docker containers for hyperledger fabric. My setup will be a cluster of 4 brokers and I am having an issue when I introduce the second broker. All the brokers are currently sitting on a single machine and I need them to advertise their external address so that my orderers on different machines can discover them.

我的撰写文件中有1 Zookeeper和1个经纪人：

My compose file with 1 Zookeeper and 1 Broker:

version: '2'

services:
  zookeeper0.hyperfabric.xyz:
    image: hyperledger/fabric-zookeeper
    restart: always
    container_name: zookeeper0.hyperfabric.xyz
    environment:
      - ZOO_SERVERS=server.1=zookeeper0.hyperfabric.xyz:2888:3888
      - ZOO_MY_ID=1
    ports:
      - 2181:2181
      - 2888:2888
      - 3888:3888

  kafka0.hyperfabric.xyz:
    image: hyperledger/fabric-kafka
    restart: always
    container_name: kafka0.hyperfabric.xyz
    environment:
      - KAFKA_MESSAGE_MAX_BYTES=103809024
      - KAFKA_REPLICA_FETCH_MAX_BYTES=103809024
      - KAFKA_UNCLEAN_LEADER_ELECTION_ENABLE=false
      - KAFKA_MIN_INSYNC_REPLICAS=1
      - KAFKA_DEFAULT_REPLICATION_FACTOR=1
      - KAFKA_ZOOKEEPER_CONNECT=zookeeper0.hyperfabric.xyz:2181
      - KAFKA_BROKER_ID=0
      - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka0.hyperfabric.xyz:9092
    ports:
      - 9092:9092
      - 9093:9093

运行此程序效果很好。

当我使用以下方法介绍其他经纪人时：

When I introduce another broker using:

kafka1.hyperfabric.xyz:
  image: hyperledger/fabric-kafka
  restart: always
  container_name: kafka1.hyperfabric.xyz
  environment:
    - KAFKA_MESSAGE_MAX_BYTES=103809024
    - KAFKA_REPLICA_FETCH_MAX_BYTES=103809024
    - KAFKA_UNCLEAN_LEADER_ELECTION_ENABLE=false
    - KAFKA_MIN_INSYNC_REPLICAS=1
    - KAFKA_DEFAULT_REPLICATION_FACTOR=1
    - KAFKA_ZOOKEEPER_CONNECT=zookeeper0.hyperfabric.xyz:2181
    - KAFKA_BROKER_ID=1
    - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka1.hyperfabric.xyz:10092
  ports:
    - 10092:9092
    - 10093:9093

我收到以下无限循环错误：

I get the followin infinitely looping error:

[2018-05-11 02:04:08,310] WARN [Controller id=0, targetBrokerId=1] Connection to node 1 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)

该错误与我的KAFKA_ADVERTISED_LISTENERS（相同KAFKA_ADVERTISED_HOST_NAME和KAFKA_ADVERTISED_PORT环境变量会发生这种情况。如果删除它，它可以工作，但是我的订购者将不会收到经纪人的地址，而且订购者和经纪人之间的通信也会丢失。

The error is somewhat related to my KAFKA_ADVERTISED_LISTENERS (same thing happens with KAFKA_ADVERTISED_HOST_NAME and KAFKA_ADVERTISED_PORT) environmental variable. If I remove it, it works, but then my orderers will not receive the brokers address and I will lose communication between orderers and brokers.

如何维护内部连接

推荐答案

我可以通过更改kafka1容器的外观来使所有东西连接起来像这样：

I was able to get everything connected by changing my kafka1 container to look like this:

kafka1.hyperfabric.xyz:
  image: hyperledger/fabric-kafka
  restart: always
  container_name: kafka1.hyperfabric.xyz
  environment:
    - KAFKA_PORT=10092
    - KAFKA_MESSAGE_MAX_BYTES=103809024
    - KAFKA_REPLICA_FETCH_MAX_BYTES=103809024
    - KAFKA_UNCLEAN_LEADER_ELECTION_ENABLE=false
    - KAFKA_MIN_INSYNC_REPLICAS=1
    - KAFKA_DEFAULT_REPLICATION_FACTOR=1
    - KAFKA_ZOOKEEPER_CONNECT=zookeeper0.hyperfabric.xyz:2181
    - KAFKA_BROKER_ID=1
    - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka1.hyperfabric.xyz:10092
  ports:
    - 10092:10092
    - 10093:9093

差异为-KAFKA_PORT = 10092 和-10092：10092

这篇关于Kafka Broker for Hyperledger Fabric无法建立连接的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！