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Systemd管理Kafka.md

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Systemd管理Kafka
2020-06-18 12:56:31 -0700

Kafka 版本:2.0.0

Scala 版本:2.12

安装目录:/opt/kafka

修改配置文件:

$ vim /opt/kafka/config/server.propertie

修改的配置如下:

log.dirs=/home/kafka-logs
log.retention.hours=72
log.retention.bytes=107374182400

数据保存3天。最大为 100 G,/home 目录容量为 165G。

编写 service 文件:

$ vim /usr/lib/systemd/system/kafka.service

内容如下:

[Unit]
Description=Apache Kafka server (broker)
Documentation=http://kafka.apache.org/documentation.html
Requires=network.target remote-fs.target
After=network.target remote-fs.target kafka-zookeeper.service

[Service]
Type=simple
User=kafka
Group=kafka
Environment=JAVA_HOME=/usr/java/jdk1.8.0_251-amd64
ExecStart=/opt/kafka/bin/kafka-server-start.sh /opt/kafka/config/server.properties
ExecStop=/opt/kafka/bin/kafka-server-stop.sh

[Install]
WantedBy=multi-user.target

添加系统用户:

$ groupadd kafka --system
$ useradd -m kafka -g kafka --system

创建数据目录:

$ mkdir /home/kafka-logs
$ chown -R kafka:kafka /home/kafka-logs/

在 /etc/profile 添加环境变量:

export KAFKA_HOME=/opt/kafka
export PATH=$PATH:$ZOOKEEPER_HOME/bin:$KAFKA_HOME/bin

使之生效:

$ source /etc/profile

启动:

$ systemctl daemon-reload
$ systemctl enabel kafka
$ systemctl start kafka

查看状态:

$ systemctl status kafka
$ lsof -i:9092

测试: