Not authorized for query on admin.system.namespaces on mongodb

Question

I start a new mongo instance, create a user, authorize it, but when I run \"show collections\", the system says that the id is not authorized. I do not know why?

Answer 1

I solved it like so for mongoDB 2.6 + currently 3

db.createUser(
  {
    user: "username",
    pwd: "password",
    roles: [ { role: "root", db: "admin" } ]
  }
)

note that for the role filed instead of userAdminAnyDatabase we use root