MongoError: listCollections failed

Question

I have setted up a mongo database, which works with authentication.

I'm trying to copy a database using mongodb native driver.

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The problem is my command get rejected as :

MongoError: listCollections failed: { ok: 0.0, errmsg: "not authorized on SESSION to execute command { listCollections: 1, filter: { $or: [ { type: "collection" }, { type: { $exists: false } } ] }, cu...", code: 13, codeName: "Unauthorized" }

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Here is how I run my database :

/usr/bin/mongod --quiet
                --setParameter authenticationMechanisms=SCRAM-SHA-1
                --auth
                --port 27017
                --dbpath /database

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Here is the user I'm using to connect

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

I also tried using :

  db.createUser({
      "user": "USER",
      "pwd": "PASS",
      "roles": [ { "role": "root", "db": "admin" } ]
  });

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Here is how I connect (the connection succeed) :

const url = "mongodb://USER:PASS@172.42.0.2:27017/SESSION?authSource=admin";

MongoClient.connect(url, ...

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Here is how I request the copy :

const mongoCommand = {
     copydb: 1,
     fromhost: "172.42.0.2",
     fromdb: "SESSION",
     todb: "SESSION_COPY",
};

// Perform the copy
this.db.admin().command(mongoCommand, function (err, data) {

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I am using :

Mongodb (database) v3.4.7
Mongodb (node package) v2.2.31

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Thanks :)

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Some posts that get me through this :

mongodb-not-authorized-for-query-admin-system-users

how-can-i-execute-db-copydatabase-through-nodejss-mongodb-native-driver

Answer 1

Ok, so first of all, here is the copydb command mongodb documentation.

We can see there that in case of using fromhost you need to specify username,nouce and key.

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SOLUCE

If you want to copy a database in the same host: Do not use of fromhost.

Example :

const mongoCommand = {
    copydb: 1,
    fromdb: "SESSION",
    todb: "SESSION_SAVE",
};

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If you want to copy a database using different hosts: Use of username, nonce and key here is how you create them.