## 环境信息
– MongoDB版本：5.0.13
– 操作系统：Oracle Linux 9.3
– 服务文件：/etc/systemd/system/mongodb.service

## 实施步骤

### 1. 创建systemd服务文件
$ sudo vi /etc/systemd/system/mongodb.service

[Unit]
Description=MongoDB Database Server
Documentation=https://docs.mongodb.org/manual
After=network.target

[Service]
User=mongodb
Group=mongodb
Environment=”PATH=/mongodb/app/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin”
Environment=”MONGODB_HOME=/mongodb/app”
ExecStart=/mongodb/app/bin/mongod –config /mongodb/conf/mongod.conf
ExecStop=/mongodb/app/bin/mongod –config /mongodb/conf/mongod.conf –shutdown
Restart=on-failure
RestartSec=10
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target

### 2. 配置MongoDB配置文件
$ sudo vi /mongodb/conf/mongod.conf

storage:
dbPath: /mongodb/fgdata
journal:
enabled: true

systemLog:
destination: file
logAppend: true
path: /mongodb/log/mongod.log

net:
port: 27017
bindIp: 0.0.0.0

processManagement:
fork: false

security:
authorization: enabled

### 3. 重新加载systemd配置
$ sudo systemctl daemon-reload

### 4. 启用并启动服务
$ sudo systemctl enable mongodb
$ sudo systemctl start mongodb

### 5. 验证服务状态
$ sudo systemctl status mongodb
● mongodb.service – MongoDB Database Server
Loaded: loaded (/etc/systemd/system/mongodb.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2024-01-01 10:00:00 CST; 1min ago
Docs: https://docs.mongodb.org/manual
Main PID: 12345 (mongod)
Tasks: 20
Memory: 1.0G
CGroup: /system.slice/mongodb.service
└─12345 /mongodb/app/bin/mongod –config /mongodb/conf/mongod.conf

### 6. 管理服务
$ sudo systemctl stop mongodb
$ sudo systemctl start mongodb
$ sudo systemctl restart mongodb
$ sudo systemctl reload mongodb

### 7. 查看服务日志
$ sudo journalctl -u mongodb
$ sudo journalctl -u mongodb -f

## 环境信息
– MongoDB版本：5.0.13
– 操作系统：Oracle Linux 9.3
– 服务文件：/etc/systemd/system/mongodb.service

## 实施步骤

### 1. 创建MongoDB用户和目录
$ sudo groupadd mongodb
$ sudo useradd -g mongodb -s /bin/bash -m mongodb
$ sudo mkdir -p /mongodb/app /mongodb/fgdata /mongodb/log /mongodb/conf
$ sudo chown -R mongodb:mongodb /mongodb

### 2. 安装MongoDB
$ sudo tar -zxvf mongodb-linux-x86_64-rhel90-5.0.13.tgz -C /mongodb/app –strip-components 1

### 3. 创建systemd服务文件
$ sudo vi /etc/systemd/system/mongodb.service

[Unit]
Description=MongoDB Database Server
Documentation=https://docs.mongodb.org/manual
After=network.target

[Service]
User=mongodb
Group=mongodb
Environment=”PATH=/mongodb/app/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin”
Environment=”MONGODB_HOME=/mongodb/app”
ExecStart=/mongodb/app/bin/mongod –config /mongodb/conf/mongod.conf
ExecStop=/mongodb/app/bin/mongod –config /mongodb/conf/mongod.conf –shutdown
Restart=on-failure
RestartSec=10
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target

### 4. 配置MongoDB配置文件
$ sudo vi /mongodb/conf/mongod.conf

storage:
dbPath: /mongodb/fgdata
journal:
enabled: true

systemLog:
destination: file
logAppend: true
path: /mongodb/log/mongod.log

net:
port: 27017
bindIp: 0.0.0.0

processManagement:
fork: false

security:
authorization: enabled

### 5. 重新加载systemd配置
$ sudo systemctl daemon-reload

### 6. 启动服务并创建管理员用户
$ sudo systemctl start mongodb
$ /mongodb/app/bin/mongosh
fgedu.net.cn> use admin
fgedu.net.cn> db.createUser({
… user: “fgedu”,
… pwd: “fgedu123”,
… roles: [ { role: “userAdminAnyDatabase”, db: “admin” }, “readWriteAnyDatabase” ]
… })

### 7. 重启服务并验证
$ sudo systemctl restart mongodb
$ /mongodb/app/bin/mongosh -u fgedu -p fgedu123 –authenticationDatabase admin
fgedu.net.cn> show dbs

### 8. 配置服务自动启动
$ sudo systemctl enable mongodb

## 环境信息
– MongoDB版本：5.0.13
– 操作系统：Oracle Linux 9.3
– 服务文件：/etc/systemd/system/mongodb.service

## 实施步骤

### 1. 配置服务监控
$ sudo vi /etc/systemd/system/mongodb.service

[Service]
# 其他配置…
Restart=on-failure
RestartSec=10
StartLimitInterval=60
StartLimitBurst=3

### 2. 重新加载systemd配置
$ sudo systemctl daemon-reload
$ sudo systemctl restart mongodb

### 3. 创建监控脚本
$ cat > /mongodb/scripts/monitor.sh << 'EOF' #!/bin/bash # monitor.sh # from:www.itpux.com.qq113257174.wx:itpux-com # web: http://www.fgedu.net.cn # 检查服务状态 if ! systemctl is-active --quiet mongodb; then echo "$(date): MongoDB service is not running!" # 尝试重启服务 systemctl restart mongodb # 再次检查 sleep 5 if ! systemctl is-active --quiet mongodb; then echo "$(date): Failed to restart MongoDB service!" # 发送告警 # echo "MongoDB service is down and failed to restart" | mail -s "MongoDB Alert" admin@fgedu.net.cn else echo "$(date): MongoDB service restarted successfully!" fi fi # 检查数据库连接 if systemctl is-active --quiet mongodb; then /mongodb/app/bin/mongosh -u fgedu -p fgedu123 --authenticationDatabase admin --eval "db.adminCommand('ping')" if [ $? -ne 0 ]; then echo "$(date): MongoDB database connection failed!" # 发送告警 # echo "MongoDB database connection failed" | mail -s "MongoDB Alert" admin@fgedu.net.cn fi fi EOF $ chmod +x /mongodb/scripts/monitor.sh $ crontab -e */5 * * * * /mongodb/scripts/monitor.sh >> /mongodb/log/monitor.log 2>&1

### 4. 故障处理

#### 场景1：服务启动失败
$ sudo systemctl status mongodb
# 查看日志
$ sudo journalctl -u mongodb
# 检查配置文件
$ sudo vi /mongodb/conf/mongod.conf
# 检查数据目录权限
$ ls -la /mongodb/fgdata

#### 场景2：服务运行中但数据库不可用
$ /mongodb/app/bin/mongosh -u fgedu -p fgedu123 –authenticationDatabase admin
# 查看日志
$ tail -f /mongodb/log/mongod.log
# 检查网络连接
$ netstat -tulpn | grep 27017

#### 场景3：服务自动重启
$ sudo journalctl -u mongodb | grep “Restarting”
# 分析重启原因
$ sudo journalctl -u mongodb –since “1 hour ago”
# 优化服务配置
$ sudo vi /mongodb/conf/mongod.conf