环境如下：

CentOS-7-x86_64
zookeeper-3.4.11
kafka_2.12-1.1.0

一.zookeeper下载与安装

1）下载zookeeper

[root@localhost opt]# cd /opt/

[root@localhost opt]# wget https://mirrors.cnnic.cn/apache/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz

2）解压

[root@localhost opt]# tar zxvf zookeeper-3.4.11.tar.gz

[root@localhost opt]# ls

zookeeper-3.4.11 zookeeper-3.4.11.tar.gz

3）配置

[root@localhost opt]# cd zookeeper-3.4.11

[root@localhost zookeeper-3.4.11]# ll

total 1596

drwxr-xr-x. 2 502 games 149 Nov 1 14:52 bin

-rw-r--r--. 1 502 games 87943 Nov 1 14:47 build.xml

drwxr-xr-x. 2 502 games 77 Nov 1 14:52 conf

drwxr-xr-x. 10 502 games 130 Nov 1 14:47 contrib

drwxr-xr-x. 2 502 games 4096 Nov 1 14:54 dist-maven

drwxr-xr-x. 6 502 games 4096 Nov 1 14:52 docs

-rw-r--r--. 1 502 games 1709 Nov 1 14:47 ivysettings.xml

-rw-r--r--. 1 502 games 8197 Nov 1 14:47 ivy.xml

drwxr-xr-x. 4 502 games 4096 Nov 1 14:52 lib

-rw-r--r--. 1 502 games 11938 Nov 1 14:47 LICENSE.txt

-rw-r--r--. 1 502 games 3132 Nov 1 14:47 NOTICE.txt

-rw-r--r--. 1 502 games 1585 Nov 1 14:47 README.md

-rw-r--r--. 1 502 games 1770 Nov 1 14:47 README_packaging.txt

drwxr-xr-x. 5 502 games 47 Nov 1 14:47 recipes

drwxr-xr-x. 8 502 games 211 Nov 1 14:52 src

-rw-r--r--. 1 502 games 1478279 Nov 1 14:49 zookeeper-3.4.11.jar

-rw-r--r--. 1 502 games 195 Nov 1 14:52 zookeeper-3.4.11.jar.asc

-rw-r--r--. 1 502 games 33 Nov 1 14:49 zookeeper-3.4.11.jar.md5

-rw-r--r--. 1 502 games 41 Nov 1 14:49 zookeeper-3.4.11.jar.sha1

[root@localhost zookeeper-3.4.11]# cp -rf conf/zoo_sample.cfg conf/zoo.cfg

[root@localhost zookeeper-3.4.11]# vi conf/zoo.cfg

修改或添加zoo.cfg文件中如下两个配置项:

dataDir=/opt/zookeeper-3.4.11/zkdata #这个目录是预先创建的

dataLogDir=/opt/zookeeper-3.4.11/zkdatalog #这个目录是预先创建的

创建zk数据存储和zk日志存储目录：

[root@localhost zookeeper-3.4.11]# mkdir /opt/zookeeper-3.4.11/zkdata

[root@localhost zookeeper-3.4.11]# mkdir /opt/zookeeper-3.4.11/zkdatalog

[root@localhost zookeeper-3.4.11]# ll

total 1596

drwxr-xr-x. 2 502 games 149 Nov 1 14:52 bin

-rw-r--r--. 1 502 games 87943 Nov 1 14:47 build.xml

drwxr-xr-x. 2 502 games 92 Mar 31 11:12 conf

drwxr-xr-x. 10 502 games 130 Nov 1 14:47 contrib

drwxr-xr-x. 2 502 games 4096 Nov 1 14:54 dist-maven

drwxr-xr-x. 6 502 games 4096 Nov 1 14:52 docs

-rw-r--r--. 1 502 games 1709 Nov 1 14:47 ivysettings.xml

-rw-r--r--. 1 502 games 8197 Nov 1 14:47 ivy.xml

drwxr-xr-x. 4 502 games 4096 Nov 1 14:52 lib

-rw-r--r--. 1 502 games 11938 Nov 1 14:47 LICENSE.txt

-rw-r--r--. 1 502 games 3132 Nov 1 14:47 NOTICE.txt

-rw-r--r--. 1 502 games 1585 Nov 1 14:47 README.md

-rw-r--r--. 1 502 games 1770 Nov 1 14:47 README_packaging.txt

drwxr-xr-x. 5 502 games 47 Nov 1 14:47 recipes

drwxr-xr-x. 8 502 games 211 Nov 1 14:52 src

drwxr-xr-x. 2 root root 6 Mar 31 11:13 zkdata

drwxr-xr-x. 2 root root 6 Mar 31 11:13 zkdatalog

-rw-r--r--. 1 502 games 1478279 Nov 1 14:49 zookeeper-3.4.11.jar

-rw-r--r--. 1 502 games 195 Nov 1 14:52 zookeeper-3.4.11.jar.asc

-rw-r--r--. 1 502 games 33 Nov 1 14:49 zookeeper-3.4.11.jar.md5

-rw-r--r--. 1 502 games 41 Nov 1 14:49 zookeeper-3.4.11.jar.sha1

4）配置环境变量

[root@localhost zookeeper-3.4.11]# vi /etc/profile

配置项如下：

# config java class path

export JAVA_HOME=/usr/local/java/jdk1.8.0_161

export JRE_HOME=${JAVA_HOME}/jre

export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$ZOOKEEPER_HOME/lib:

export PATH=${JAVA_HOME}/bin:$ZOOKEEPER_HOME/bin:$PATH

# config zookeeper install path

export ZOOKEEPER_HOME=/opt/zookeeper-3.4.11

5）启动zookeeper

[root@localhost bin]# cd /opt/zookeeper-3.4.11/bin

[root@localhost bin]# ll

total 36

-rwxr-xr-x. 1 502 games 232 Nov 1 14:47 README.txt

-rwxr-xr-x. 1 502 games 1937 Nov 1 14:47 zkCleanup.sh

-rwxr-xr-x. 1 502 games 1056 Nov 1 14:47 zkCli.cmd

-rwxr-xr-x. 1 502 games 1534 Nov 1 14:47 zkCli.sh

-rwxr-xr-x. 1 502 games 1628 Nov 1 14:47 zkEnv.cmd

-rwxr-xr-x. 1 502 games 2696 Nov 1 14:47 zkEnv.sh

-rwxr-xr-x. 1 502 games 1089 Nov 1 14:47 zkServer.cmd

-rwxr-xr-x. 1 502 games 6773 Nov 1 14:47 zkServer.sh

[root@localhost bin]# ./zkServer.sh start

ZooKeeper JMX enabled by default

Using config: /opt/zookeeper-3.4.11/bin/../conf/zoo.cfg

Starting zookeeper ... STARTED

二.kafka下载与安装

1).下载kafka:

[root@localhost bin]# cd /opt/

[root@localhost opt]# wget http://apache.fayea.com/kafka/1.1.0/kafka_2.12-1.1.0.tgz

--2018-03-31 11:21:52-- http://apache.fayea.com/kafka/1.1.0/kafka_2.12-1.1.0.tgz

Resolving apache.fayea.com (apache.fayea.com)... 202.115.175.188, 202.115.175.187

Connecting to apache.fayea.com (apache.fayea.com)|202.115.175.188|:80... connected.

HTTP request sent, awaiting response... 200 OK

Length: 50326212 (48M) [application/x-gzip]

Saving to: ‘kafka_2.12-1.1.0.tgz’

100%[=============================================================================================================================>] 50,326,212 442KB/s in 1m 44s

2018-03-31 11:23:36 (473 KB/s) - ‘kafka_2.12-1.1.0.tgz’ saved [50326212/50326212]

[root@localhost opt]# ll

total 84964

-rw-r--r--. 1 root root 50326212 Mar 28 08:05 kafka_2.12-1.1.0.tgz

drwxr-xr-x. 15 502 games 4096 Mar 31 11:20 zookeeper-3.4.11

-rw-r--r--. 1 root root 36668066 Nov 8 13:24 zookeeper-3.4.11.tar.gz

2) 解压：

tar -zxvf kafka_2.12-1.1.0.tgz

3) 配置：

进入kafka安装工程根目录编辑config/server.properties

[root@localhost opt]# cd /opt/kafka_2.12-1.1.0/config/

[root@localhost config]# ll

total 64

-rw-r--r--. 1 root root 906 Mar 23 18:51 connect-console-sink.properties

-rw-r--r--. 1 root root 909 Mar 23 18:51 connect-console-source.properties

-rw-r--r--. 1 root root 5807 Mar 23 18:51 connect-distributed.properties

-rw-r--r--. 1 root root 883 Mar 23 18:51 connect-file-sink.properties

-rw-r--r--. 1 root root 881 Mar 23 18:51 connect-file-source.properties

-rw-r--r--. 1 root root 1111 Mar 23 18:51 connect-log4j.properties

-rw-r--r--. 1 root root 2730 Mar 23 18:51 connect-standalone.properties

-rw-r--r--. 1 root root 1221 Mar 23 18:51 consumer.properties

-rw-r--r--. 1 root root 4727 Mar 23 18:51 log4j.properties

-rw-r--r--. 1 root root 1919 Mar 23 18:51 producer.properties

-rw-r--r--. 1 root root 6851 Mar 23 18:51 server.properties

-rw-r--r--. 1 root root 1032 Mar 23 18:51 tools-log4j.properties

-rw-r--r--. 1 root root 1023 Mar 23 18:51 zookeeper.properties

[root@localhost config]# mkdir /opt/kafka_2.12-1.1.0/kafka_log

添加或者修改以下两个配置项：

log.dirs=/opt/kafka_2.12-1.1.0/kafka_log      #(提前创建)

listeners=PLAINTEXT://192.168.0.111:9092

config/server.properties修改后：

 [root@localhost config]# more server.properties

 # 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=0

 ############################# Socket Server Settings #############################

 # 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

 # EXAMPLE:

 # listeners = PLAINTEXT://your.host.name:9092

 #listeners=PLAINTEXT://:9092

 listeners=PLAINTEXT://192.178.0.111:9092

 # Hostname and port the broker will advertise to producers and consumers. If not set,

 # it uses the value for "listeners" if configured. Otherwise, it will use the value

 # returned from java.net.InetAddress.getCanonicalHostName().

 #advertised.listeners=PLAINTEXT://your.host.name:9092

 # Maps listener names to security protocols, the default is for them to be the same. See the config documentation for more details

 #listener.security.protocol.map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL

 # The number of threads that the server uses for receiving requests from the network and sending responses to the network

 num.network.threads=3

 # The number of threads that the server uses for processing requests, which may include disk I/O

 num.io.threads=8

 # The send buffer (SO_SNDBUF) used by the socket server

 socket.send.buffer.bytes=102400

 # The receive buffer (SO_RCVBUF) used by the socket server

 socket.receive.buffer.bytes=102400

 # The maximum size of a request that the socket server will accept (protection against OOM)

 socket.request.max.bytes=104857600

 ############################# Log Basics #############################

 # A comma separated list of directories under which to store log files

 #log.dirs=/tmp/kafka-logs

 log.dirs=/opt/kafka_2.12-1.1.0/kafka_log

 # The default number of log partitions per topic. More partitions allow greater

 # parallelism for consumption, but this will also result in more files across

 # the brokers.

 num.partitions=1

 # The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.

 # This value is recommended to be increased for installations with data dirs located in RAID array.

 num.recovery.threads.per.data.dir=1

 ############################# Internal Topic Settings #############################

 # The replication factor for the group metadata internal topics "__consumer_offsets" and "__transaction_state"

 # For anything other than development testing, a value greater than 1 is recommended for to ensure availability such as 3.

 offsets.topic.replication.factor=1

 transaction.state.log.replication.factor=1

 transaction.state.log.min.isr=1

 ############################# Log Flush Policy #############################

 # Messages are immediately written to the filesystem but by default we only fsync() to sync

 # the OS cache lazily. The following configurations control the flush of data to disk.

 # There are a few important trade-offs here:

 # 1. Durability: Unflushed data may be lost if you are not using replication.

 # 2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.

 # 3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to excessive seeks.

 # The settings below allow one to configure the flush policy to flush data after a period of time or

 # every N messages (or both). This can be done globally and overridden on a per-topic basis.

 # The number of messages to accept before forcing a flush of data to disk

 #log.flush.interval.messages=10000

 # The maximum amount of time a message can sit in a log before we force a flush

 #log.flush.interval.ms=1000

 ############################# Log Retention Policy #############################

 # The following configurations control the disposal of log segments. The policy can

 # be set to delete segments after a period of time, or after a given size has accumulated.

 # A segment will be deleted whenever *either* of these criteria are met. Deletion always happens

 # from the end of the log.

 # The minimum age of a log file to be eligible for deletion due to age

 log.retention.hours=168

 # A size-based retention policy for logs. Segments are pruned from the log unless the remaining

 # segments drop below log.retention.bytes. Functions independently of log.retention.hours.

 #log.retention.bytes=1073741824

 # The maximum size of a log segment file. When this size is reached a new log segment will be created.

 log.segment.bytes=1073741824

 # The interval at which log segments are checked to see if they can be deleted according

 # to the retention policies

 log.retention.check.interval.ms=300000

 ############################# Zookeeper #############################

 # Zookeeper connection string (see zookeeper docs for details).

 # This is a comma separated host:port pairs, each corresponding to a zk

 # server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".

 # You can also append an optional chroot string to the urls to specify the

 # root directory for all kafka znodes.

 zookeeper.connect=localhost:2181

 # Timeout in ms for connecting to zookeeper

 zookeeper.connection.timeout.ms=6000

 ############################# Group Coordinator Settings #############################

 # The following configuration specifies the time, in milliseconds, that the GroupCoordinator will delay the initial consumer rebalance.

 # The rebalance will be further delayed by the value of group.initial.rebalance.delay.ms as new members join the group, up to a maximum of max.poll.interval.ms.

 # The default value for this is 3 seconds.

 # We override this to 0 here as it makes for a better out-of-the-box experience for development and testing.

 # However, in production environments the default value of 3 seconds is more suitable as this will help to avoid unnecessary, and potentially expensive, rebalances dur

 ing application startup.

 group.initial.rebalance.delay.ms=0

4）启动kafka

[root@localhost kafka_2.12-1.1.0]# cd /opt/kafka_2.12-1.1.0/

[root@localhost kafka_2.12-1.1.0]# ll

total 48

drwxr-xr-x. 3 root root 4096 Mar 23 18:55 bin

drwxr-xr-x. 2 root root 4096 Mar 31 11:30 config

drwxr-xr-x. 2 root root 6 Mar 31 11:31 kafka_log

drwxr-xr-x. 2 root root 4096 Mar 31 11:26 libs

-rw-r--r--. 1 root root 28824 Mar 23 18:51 LICENSE

drwxr-xr-x. 2 root root 182 Mar 31 11:33 logs

-rw-r--r--. 1 root root 336 Mar 23 18:51 NOTICE

drwxr-xr-x. 2 root root 44 Mar 23 18:55 site-docs

[root@localhost kafka_2.12-1.1.0]# sh ./bin/kafka-server-start.sh ./config/server.properties &

[2018-03-31 11:35:47,198] ERROR [KafkaServer id=0] Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer)

kafka.common.KafkaException: Socket server failed to bind to 192.178.0.111:9092: Cannot assign requested address.

at kafka.network.Acceptor.openServerSocket(SocketServer.scala:404)

at kafka.network.Acceptor.<init>(SocketServer.scala:308)

at kafka.network.SocketServer.$anonfun$createAcceptorAndProcessors$1(SocketServer.scala:126)

at kafka.network.SocketServer.$anonfun$createAcceptorAndProcessors$1$adapted(SocketServer.scala:122)

at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:59)

at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:52)

at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)

at kafka.network.SocketServer.createAcceptorAndProcessors(SocketServer.scala:122)

at kafka.network.SocketServer.startup(SocketServer.scala:84)

at kafka.server.KafkaServer.startup(KafkaServer.scala:247)

at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:38)

at kafka.Kafka$.main(Kafka.scala:92)

at kafka.Kafka.main(Kafka.scala)

Caused by: java.net.BindException: Cannot assign requested address

at sun.nio.ch.Net.bind0(Native Method)

at sun.nio.ch.Net.bind(Net.java:433)

at sun.nio.ch.Net.bind(Net.java:425)

at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)

at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)

at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:67)

at kafka.network.Acceptor.openServerSocket(SocketServer.scala:400)

... 12 more

备注：上边是启动失败信息，启动失败原因是我的服务器9092端口未开启

此时，检测2181与9092端口

[root@localhost kafka_2.12-1.1.0]# netstat -tunlp|egrep "(2181|9092)"

tcp6 0 0 :::2181 :::* LISTEN 8896/java

CentOS 7.0默认使用的是firewall作为防火墙，使用iptables必须重新设置一下

1、直接关闭防火墙

systemctl stop firewalld.service #停止firewall

systemctl disable firewalld.service #禁止firewall开机启动

2、设置 iptables service

[root@localhost kafka_2.12-1.1.0]# yum -y install iptables-services

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: mirrors.163.com

* extras: mirrors.163.com

* updates: mirrors.cn99.com

Resolving Dependencies

--> Running transaction check

---> Package iptables-services.x86_64 0:1.4.21-18.3.el7_4 will be installed

--> Processing Dependency: iptables = 1.4.21-18.3.el7_4 for package: iptables-services-1.4.21-18.3.el7_4.x86_64

--> Running transaction check

---> Package iptables.x86_64 0:1.4.21-18.0.1.el7.centos will be updated

---> Package iptables.x86_64 0:1.4.21-18.3.el7_4 will be an update

--> Finished Dependency Resolution

Dependencies Resolved

=======================================================================================================================================================================

Package Arch Version Repository Size

=======================================================================================================================================================================

Installing:

iptables-services x86_64 1.4.21-18.3.el7_4 updates 51 k

Updating for dependencies:

iptables x86_64 1.4.21-18.3.el7_4 updates 428 k

Transaction Summary

=======================================================================================================================================================================

Install 1 Package

Upgrade ( 1 Dependent package)

Total download size: 479 k

Downloading packages:

Delta RPMs disabled because /usr/bin/applydeltarpm not installed.

(1/2): iptables-services-1.4.21-18.3.el7_4.x86_64.rpm | 51 kB 00:00:00

(2/2): iptables-1.4.21-18.3.el7_4.x86_64.rpm | 428 kB 00:00:01

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------

Total 447 kB/s | 479 kB 00:00:01

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

Updating : iptables-1.4.21-18.3.el7_4.x86_64 1/3

Installing : iptables-services-1.4.21-18.3.el7_4.x86_64 2/3

Cleanup : iptables-1.4.21-18.0.1.el7.centos.x86_64 3/3

Verifying : iptables-1.4.21-18.3.el7_4.x86_64 1/3

Verifying : iptables-services-1.4.21-18.3.el7_4.x86_64 2/3

Verifying : iptables-1.4.21-18.0.1.el7.centos.x86_64 3/3

Installed:

iptables-services.x86_64 0:1.4.21-18.3.el7_4

Dependency Updated:

iptables.x86_64 0:1.4.21-18.3.el7_4

Complete!

[root@localhost kafka_2.12-1.1.0]#

备注：默认iptables是没有安装的，需要先安装iptables

如果要修改防火墙配置，如增加防火墙端口 9092

vi /etc/sysconfig/iptables

增加规则 -A INPUT -m state --state NEW -m tcp -p tcp --dport 9092 -j ACCEPT

[root@localhost kafka_2.12-1.1.0]# vi /etc/sysconfig/iptables

[root@localhost kafka_2.12-1.1.0]# more /etc/sysconfig/iptables

# sample configuration for iptables service

# you can edit this manually or use system-config-firewall

# please do not ask us to add additional ports/services to this default configuration

*filter

:INPUT ACCEPT [0:0]

:FORWARD ACCEPT [0:0]

:OUTPUT ACCEPT [0:0]

-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT

-A INPUT -p icmp -j ACCEPT

-A INPUT -i lo -j ACCEPT

-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT

-A INPUT -m state --state NEW -m tcp -p tcp --dport 9092 -j ACCEPT

-A INPUT -j REJECT --reject-with icmp-host-prohibited

-A FORWARD -j REJECT --reject-with icmp-host-prohibited

COMMIT

保存退出后

systemctl restart iptables.service #重启防火墙使配置生效

systemctl enable iptables.service #设置防火墙开机启动

systemctl start firewalld.service

systemctl enable firewalld.service

最后重启系统使设置生效即可。

重新启动zk,重新启动kafaka，启动后检测端口是否通：

[root@localhost opt]# netstat -tunlp|egrep "(2181|9092)"

tcp6 0 0 192.178.0.111:9092 :::* LISTEN 10299/java

tcp6 0 0 :::2181 :::* LISTEN 8896/java

5)新建一个TOPIC

--创建topic

/opt/kafka_2.12-1.1.0/bin/kafka-topics.sh --create --zookeeper localhost:2181 --partitions 1 --replication-factor 1 --topic kafkatopic

此时kafaka服务器开启窗口（执行[root@localhost kafka_2.12-1.1.0]# sh ./bin/kafka-server-start.sh ./config/server.properties &的窗口）会有变化：

--查看所有topic

 /opt/kafka_2.12-1.1.0/bin/kafka-topics.sh --list --zookeeper localhost:2181

--查看指定topic

/opt/kafka_2.12-1.1.0/bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic logTopic100

6) 把KAFKA的生产者启动起来：

/opt/kafka_2.12-1.1.0/bin/kafka-console-producer.sh --broker-list 192.178.0.111:9092 --sync --topic kafkatopic

7）另开一个终端，把消费者启动起来：

sh /opt/kafka_2.12-1.1.0/bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic kafkatopic --from-beginning
也可以采用：
sh /opt/kafka_2.12-1.1.0/bin/kafka-console-consumer.sh --bootstrap-server 192.178.0.111:9092 --topic kafkatopic --from-beginning

(--from beginning 是从头开始消费，不加则是消费当前正在发送到该topic的消息)

8）使用
在发送消息的终端输入aaa，则可以在消费消息的终端显示

生产者生产：

[root@localhost ~]# /opt/kafka_2.12-1.1.0/bin/kafka-console-producer.sh --broker-list 192.178.0.111:9092 --topic kafkatopic

>a

>b

>c

>d

>

消费者接收：

[root@localhost ~]# /opt/kafka_2.12-1.1.0/bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic kafkatopic --from-beginning

Using the ConsoleConsumer with old consumer is deprecated and will be removed in a future major release. Consider using the new consumer by passing [bootstrap-server] instead of [zookeeper].

a

b

c

d

参考资料如下：

1）《 CentOS 7 开放防火墙端口命令》

2）《 kafka+zookeeper环境配置（linux环境单机版）》

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