kafka集群部署以及单机部署

kafka单机部署

当前环境：centos7.3一台
软件版本：kafka_2.12
部署目录：/usr/local/kafka
启动端口：9092
配置文件：/usr/local/kafka/config/server.properties

yum依赖
yum install java-1.8.0-openjdk

需要部署zookeeper单点

1.下载kafka包
wget http://mirrors.hust.edu.cn/apache/kafka/2.1.0/kafka_2.12-2.1.0.tgz

2.解压并移动，然后创建日志目录
tar zxvf kafka_2.12-0.10.2.1.tgz
mv kafka_2.12-0.10.2.1 /usr/local/kafka
mkdir /var/log/kafka

3.修改配置文件，将最后面的zookeeper地址修改
vim /usr/local/kafka/config/server.properties

启动
/usr/local/kafka/bin/kafka-server-start.sh -daemon /usr/local/kafka/config/server.properties

检查
netstat -unltp | grep 9092

当前环境：centos7.3三台
软件版本：kafka_2.12
部署目录：/usr/local/kafka
启动端口：9092
配置文件：/usr/local/kafka/config/server.properties

yum依赖（3台同时操作）
yum install java-1.8.0-openjdk

需要部署zookeeper集群

1.下载kafka包(3台节点都执行)
wget http://mirror.bit.edu.cn/apache/kafka/0.10.2.1/kafka_2.12-0.10.2.1.tgz

2.解压并移动，然后创建日志目录（3台节点都执行）
tar zxvf kafka_2.12-0.10.2.1.tgz
mv kafka_2.12-0.10.2.1 /usr/local/kafka
mkdir /var/log/kafka

3.修改配置文件(3台同时操作，需要更改的地方不一样)
vim /usr/local/kafka/config/server.properties

#此为第一台，第二台为2 第三台为3
broker.id=1
# Switch to enable topic deletion or not, default value is false
delete.topic.enable=true
#本机开启端口和监听端口
advertised.host.name=192.168.1.189
# The number of threads handling network requests
num.network.threads=3
# The number of threads doing 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
#日志目录
log.dirs=/var/log/kafka
#开启10个分区
num.partitions=10
#kafka保存消息的副本数
default.replication.factor=3
# 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
#持久化时间
log.retention.hours=48
# The maximum size of a log segment file. When this size is reached a new log segment will be created.
log.segment.bytes=1073741824
# to the retention policies
log.retention.check.interval.ms=300000
#连接zookeeper地址端口
zookeeper.connect=192.168.1.189:2181,192.168.1.190:2181,192.168.1.191:2181
# Timeout in ms for connecting to zookeeper
zookeeper.connection.timeout.ms=6000

启动(3台都需要启动)
/usr/local/kafka/bin/kafka-server-start.sh -daemon /usr/local/kafka/config/server.properties

检查
netstat -unltp | grep 9092

1.启动kafka
bin/kafka-server-start.sh -daemon config/server.properties

2.关闭kafka
bin/kafka-server-stop.sh

3.查看kafka topic是否支持集群，没反应就是正确
bin/kafka-topics.sh --describe --zookeeper 1.1.1.1:2181,1.1.1.2:2181,1.1.1.3:2181 --topic MyTopic

4.查看当前zookerrper下的kafka集群所有的topic
bin/kafka-topics.sh --list --zookeeper 1.1.1.1:2181

5.详细查看topic
bin/kafka-topics.sh --describe --zookeeper 1.1.1.1:2181 --topic topic名字

6.创建一个topic，副本备份数1个，分区数1个
bin/kafka-topics.sh --create --zookeeper 1.1.1.1:2181 --replication-factor 1 --partitions 1 --topic topic名字

7.删除一个topic
bin/kafka-topics.sh --zookeeper 1.1.1.1:2181 --delete --topic topic名字

8.改变集群模式为主主，切换主从到主主模式，解决主从模式下，从从选举时间问题
bin/kafka-preferred-replica-election.sh --zookeeper 1.1.1.1:2181

以 sync 模式启动一个producer，info.test是topic名
bin/kafka-console-producer.sh --broker-list 1.1.1.1:9092,1.1.1.2:9093,1.1.1.3:9094 --sync --topic info.test

然后，输入以下内容：
Hello, world!

启动一个 consumer，在另一个终端运行：
bin/kafka-console-consumer.sh --zookeeper 1.1.1.1:2181 --topic info.test --from-beginning

观察输出，你会看到下面内容：
Hello, world!