systemctl 启动 mongodb出现问题,是什么原因,或者怎么排查

2025-03-31 06:13:17
推荐回答(1个)
回答(1):

自己创建一个永久的文件路径,以及这个pid文件
修改配置文件/etc/mongod.conf里面的pid路径,然后修改systemd条目的路径。
具体操作
1.创建文件,并修改权限
[azuo1228@ecs-ee2fe26e /]$ sudo mkdir /mongod
[azuo1228@ecs-ee2fe26e /]$ sudo touch /mongod/mongod.pid
[azuo1228@ecs-ee2fe26e /]$ sudo chown -R mongod:mongod /mongod
2.修改配置
[azuo1228@ecs-ee2fe26e /]$ sudo vim /etc/mongod.conf
把里面的:
pidFilePath: /var/run/mongodb/mongod.pid
修改为创建的文件:
pidFilePath: /mongod/mongod.pid
3.修改systemd条目
[azuo1228@ecs-ee2fe26e ~]$ sudo vim /etc/systemd/system/multi-user.target.wants/mongod.service
把里面的:
PIDFile=/var/run/mongodb/mongod.pid
修改为制定的文件的路径:
PIDFile=/mongod/mongod.pid
4. reload systemd
[azuo1228@ecs-ee2fe26e ~]$ sudo systemctl daemon-reload
5. 启动mongod或者重起电脑
[azuo1228@ecs-ee2fe26e ~]$ sudo service mongod start
6.查看状态
[azuo1228@ecs-ee2fe26e ~]$ sudo systemctl status mongod.service
NOTE 1:
mongodb安装更新之后,mongo.conf不会更新,但是,会更新
/etc/systemd/system/multi-user.target.wants/mongod.service
,装一个新的
/etc/systemd/system/multi-user.target.wants/mongod.service
所以,也会起不来。
如果有按照上面设置过conf文件,也需要再次修改这个systemd文件。
NOTE 2:
更新的mongodb 3.4.1,已经修正了这个问题
[azuo1228@Server ~]$ sudo rpm -qa | grep mongo
mongodb-org-3.4.1-1.el7.x86_64
mongodb-org-shell-3.4.1-1.el7.x86_64
mongodb-org-tools-3.4.1-1.el7.x86_64
mongodb-org-mongos-3.4.1-1.el7.x86_64
mongodb-org-server-3.4.1-1.el7.x86_64
[azuo1228@Server ~]$

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