21.kafka启动失败-kafka.service holdoff time over, scheduling restart. ...

本日为各人解说一个kafka开机自启动失败，举行排错的一个经典场景，希望能帮到各人。
1.环境信息

OS Version	Zookeeper Version	Kafka Version	JDK Version
CentOS Linux release 7.9.2009 (Core)	3.8.0	2.13-3.3.2	1.8.0_191

2.场景复现

命令：
systemctl start kafka
systemctl status kafka

1. [root@zk2 config]# systemctl start kafka
2. [root@zk2 config]# systemctl status kafka
3. ● kafka.service - Kafka
4.    Loaded: loaded (/usr/lib/systemd/system/kafka.service; enabled; vendor preset: disabled)
5.    Active: failed (Result: start-limit) since Tue 2024-12-10 16:00:50 CST; 1s ago
6.   Process: 12542 ExecStart=/opt/kafka_2.13-3.3.2/bin/kafka-server-start.sh -daemon /opt/kafka_2.13-3.3.2/config/server.properties (code=exited, status=0/SUCCESS)
7. Main PID: 12863 (code=exited, status=127)
9. Dec 10 16:00:50 zk2 systemd[1]: kafka.service: main process exited, code=exited, status=127/n/a
10. Dec 10 16:00:50 zk2 systemd[1]: Unit kafka.service entered failed state.
11. Dec 10 16:00:50 zk2 systemd[1]: kafka.service failed.
12. Dec 10 16:00:50 zk2 systemd[1]: kafka.service holdoff time over, scheduling restart.
13. Dec 10 16:00:50 zk2 systemd[1]: Stopped Kafka.
14. Dec 10 16:00:50 zk2 systemd[1]: start request repeated too quickly for kafka.service
15. Dec 10 16:00:50 zk2 systemd[1]: Failed to start Kafka.
16. Dec 10 16:00:50 zk2 systemd[1]: Unit kafka.service entered failed state.
17. Dec 10 16:00:50 zk2 systemd[1]: kafka.service failed.
18. [root@zk2 config]#

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kafka.service

1. [Unit]
2. Description=Kafka
3. After=network.target zookeeper.service
5. [Service]
6. Type=forking
7. User=root
8. Group=root
10. Environment=KAFKA_HOME=/opt/kafka_2.13-3.3.2
12. ExecStart&

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