5、副本节点读操作
在主节点上操作
myrs:PRIMARY> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
myrs:PRIMARY> use bbs
switched to db bbs
myrs:PRIMARY> show dbs
admin 0.000GB
config 0.000GB
local 0.000GB
myrs:PRIMARY> db.usr.insert({name:"wsq",age:20,hobby:"swimming"})
WriteResult({ "nInserted" : 1 })
myrs:PRIMARY> db.usr.find()
{ "_id" : ObjectId("60601c325cf518d2294f0817"), "name" : "wsq", "age" : 20, "hobby" : "swimming" }
myrs:PRIMARY>
myrs:PRIMARY> show dbs
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