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"] })