搭建Kafka集群（ 2.8.0版本）之一

1、启动zookeeper集群

Kafka最新版本2.8.0可以不依赖zookeeper，但是仍然测试阶段，所以官方不推荐使用，因此还是要使用zookeeper集群。

[root@node1 ~]# zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-3.4.10/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@node1 ~]#

[root@node2 ~]# zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-3.4.10/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@node2 ~]# 

[root@node3 ~]# zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /opt/zookeeper-3.4.10/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED
[root@node3 ~]# 

2、下载与上传

http://kafka.apache.org/downloads
当前最新版本是2.8.0

此处下载了 kafka_2.12-2.8.0.tgz，2.12是Scala的版本，2.8.0是kafka的版本。

然后上传到服务器

[root@node1 opt]# tar -zxvf kafka_2.12-2.8.0.tgz
[root@node1 opt]# mv kafka_2.12-2.8.0 kafka-2.8.0
[root@node1 opt]# cd kafka-2.8.0/
[root@node1 kafka-2.8.0]# ls
bin  config  libs  LICENSE  licenses  NOTICE  site-docs
[root@node1 kafka-2.8.0]# 

3、配置Kafka集群

（1）基本配置

[root@node1 kafka-2.8.0]# vi conf/server.properties

配置内容

# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# see kafka.server.KafkaConfig for additional details and defaults

############################# Server Basics #############################

# The id of the broker. This must be set to a unique integer for each broker.
broker.id=1

############################# Socket Server Settings #############################
# 参考：https://www.codercto.com/a/68756.html、https://www.cnblogs.com/ElEGenT/p/12891114.html

# The address the socket server listens on. It will get the value returned from 
# java.net.InetAddress.getCanonicalHostName() if not configured.
#   FORMAT:
#     listeners = listener_name://host_name:port