备份

mongodump --host ip -u username -p password --port 27017 -d databasename --out /data --authenticationDatabase admin

恢复

noIndexRestore 不重新分配 id.

mongorestore -h ip -u username -p password --noIndexRestore /data --drop

创建用户

userAdminAnyDatabase,root,read,write

db.createUser({ user: "root",pwd: "pwd",roles: ["userAdminAnyDatabase"] })