Mongo oplog

1. 修改mongo配置

processManagement:
  timeZoneInfo: /usr/share/zoneinfo
  fork: true
replication:
  oplogSizeMB: 1024
  replSetName: rs

2. 重启Mongo

sudo systemctl restart mongo

3. 在mongo命令行中开启rs和oplog功能

mongo
use admin
db.auth('admin','admin')
1
rs.initiate()