mongodb-memory-server: MongoDB Memory Sever // Unable to Startup and/or Connect

Versions

• NodeJS: v17.5.0
• mongodb-memory-server-*: 8.8.0
• mongodb(the binary version): 5.8.0
• mongodb(the js package): 2.0.19
• system: MacOS

package: mongo-memory-server

from package.json:

  "config": {
    "mongodbMemoryServer": {
      "debug": "1"
    }
  },

What is your question?

Hey all. I do not know if this is a bug or not or something else I am doing wrong, but no matter what I do to “start” the MonogMemoryServer it never in the output shows that the “process” has started. I tried every possible varation that I can think of and I ran out of ideas.

I am using this for local development along with unit testing, and not just for unit testing. This would also run “in memory” on my development instance.

Trace

Here are the error messages:

[nodemon] watching extensions: js,mjs,json
[nodemon] starting `node --trace-warnings src`
Debugger listening on ws://127.0.0.1:50295/c43d8872-575a-4a7d-be77-f2898cfaff3a
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.
  MongoMS:ResolveConfig Debug Mode Enabled, through package.json +0ms
  MongoMS:MongoMemoryServer create: Called .create() method +0ms
  MongoMS:MongoMemoryServer Mongo[unknown]: start: Called .start() method +1ms
  MongoMS:MongoMemoryServer Mongo[unknown]: _startUpInstance: Called MongoMemoryServer._startUpInstance() method +0ms
  MongoMS:MongoMemoryServer Mongo[unknown]: getStartOptions: forceSamePort: false +0ms
  MongoMS:MongoMemoryServer Mongo[unknown]: _startUpInstance: Creating new MongoDB instance with options: {
  instance: {
    port: 50311,
    dbName: '',
    ip: '0.0.0.0',
    storageEngine: 'wiredTiger',
    replSet: undefined,
    dbPath: '/var/folders/cs/wq9ybm2956x6vjjl2rhk_9jr0000gn/T/mongo-mem--17310-EG5By9TnK4Zd',
    tmpDir: {
      name: '/var/folders/cs/wq9ybm2956x6vjjl2rhk_9jr0000gn/T/mongo-mem--17310-EG5By9TnK4Zd',
      removeCallback: [Function: _cleanupCallback]
    },
    keyfileLocation: undefined,
    args: [ '--enableMajorityReadConcern=false' ],
    auth: false
  },
  binary: undefined,
  spawn: undefined
} +22ms
  MongoMS:MongoInstance create: Called .create() method +0ms
  MongoMS:MongoInstance Mongo[50311]: start +0ms
  MongoMS:MongoBinary getPath +0ms
  MongoMS:DryMongoBinary generateOptions +0ms
  MongoMS:DryMongoBinary generateDownloadPath: Generating Download Path, preferGlobal: "true" +0ms
  MongoMS:DryMongoBinary generatePaths {
  version: '5.0.8',
  downloadDir: '',
  os: { os: 'darwin' },
  platform: 'darwin',
  arch: 'x64',
  systemBinary: ''
} +0ms
  MongoMS:DryMongoBinary getBinaryName +1ms
  MongoMS:DryMongoBinary combineBinaryName +1ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary generateDownloadPath: Paths: {
  legacyHomeCache: '/Users/me/.cache/mongodb-binaries/mongod-x64-darwin-5.0.8',
  modulesCache: '/Users/me/Documents/MYREPO/GIT.nosync/app-name/node_modules/.cache/mongodb-memory-server/mongod-x64-darwin-5.0.8',
  relative: '/Users/me/Documents/MYREPO/GIT.nosync/app-name/mongodb-binaries/mongod-x64-darwin-5.0.8',
  resolveConfig: ''
}  +0ms
  MongoMS:DryMongoBinary generateDownloadPath: no existing binary for version "5.0.8" was found +7ms
  MongoMS:DryMongoBinary generateDownloadPath: using global (preferGlobal) "/Users/me/.cache/mongodb-binaries/mongod-x64-darwin-5.0.8" +0ms
  MongoMS:MongoBinary getPath: MongoBinary options: {
  "version": "5.0.8",
  "downloadDir": "/Users/me/.cache/mongodb-binaries",
  "os": {
    "os": "darwin"
  },
  "platform": "darwin",
  "arch": "x64",
  "systemBinary": "",
  "checkMD5": false
} +11ms
  MongoMS:DryMongoBinary locateBinary: Trying to locate Binary for version "5.0.8" +1ms
  MongoMS:DryMongoBinary generateOptions +0ms
  MongoMS:DryMongoBinary generateDownloadPath: Generating Download Path, preferGlobal: "true" +0ms
  MongoMS:DryMongoBinary generatePaths {
  version: '5.0.8',
  downloadDir: '/Users/me/.cache/mongodb-binaries',
  os: { os: 'darwin' },
  platform: 'darwin',
  arch: 'x64',
  systemBinary: ''
} +0ms
  MongoMS:DryMongoBinary getBinaryName +0ms
  MongoMS:DryMongoBinary combineBinaryName +1ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary generatePaths: resolveConfigValue is not empty +0ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary generateDownloadPath: Paths: {
  legacyHomeCache: '/Users/me/.cache/mongodb-binaries/mongod-x64-darwin-5.0.8',
  modulesCache: '/Users/me/Documents/MYREPO/GIT.nosync/app-name/node_modules/.cache/mongodb-memory-server/mongod-x64-darwin-5.0.8',
  relative: '/Users/me/Documents/MYREPO/GIT.nosync/app-name/mongodb-binaries/mongod-x64-darwin-5.0.8',
  resolveConfig: '/Users/me/.cache/mongodb-binaries/mongod-x64-darwin-5.0.8'
}  +0ms
[16:00:42 UTC] DEBUG: Processing Plugins...
[16:00:42 UTC] DEBUG: Processing Routes...
  MongoMS:DryMongoBinary generateDownloadPath: no existing binary for version "5.0.8" was found +400ms
  MongoMS:DryMongoBinary generateDownloadPath: using resolveConfig (DOWNLOAD_DIR) "/Users/me/.cache/mongodb-binaries/mongod-x64-darwin-5.0.8" +0ms
  MongoMS:DryMongoBinary locateBinary: running generateDownloadPath +0ms
  MongoMS:DryMongoBinary generateDownloadPath: Generating Download Path, preferGlobal: "true" +0ms
  MongoMS:DryMongoBinary generatePaths {
  version: '5.0.8',
  downloadDir: '/Users/me/.cache/mongodb-binaries',
  os: { os: 'darwin' },
  platform: 'darwin',
  arch: 'x64',
  systemBinary: ''
} +0ms
  MongoMS:DryMongoBinary getBinaryName +0ms
  MongoMS:DryMongoBinary combineBinaryName +1ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary generatePaths: resolveConfigValue is not empty +0ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary combineBinaryName +0ms
  MongoMS:DryMongoBinary generateDownloadPath: Paths: {
  legacyHomeCache: '/Users/me/.cache/mongodb-binaries/mongod-x64-darwin-5.0.8',
  modulesCache: '/Users/me/Documents/MYREPO/GIT.nosync/app-name/node_modules/.cache/mongodb-memory-server/mongod-x64-darwin-5.0.8',
  relative: '/Users/me/Documents/MYREPO/GIT.nosync/app-name/mongodb-binaries/mongod-x64-darwin-5.0.8',
  resolveConfig: '/Users/me/.cache/mongodb-binaries/mongod-x64-darwin-5.0.8'
}  +0ms

I am on MacOSX system and updated to the latest code. I tried everything from different ports to the database name. Below is the javascript code that is excuting the start process.

Code Sample

const MongoClient = require('mongodb').MongoClient
const { MongoMemoryServer } = require('mongodb-memory-server')

// removed irrlevent code

class MongoDatabase extends DatabaseServices {

// removed irrlevent code

  async connectDatabase () {
    let mongoDbUri

    if (this.databaseInfo.localMemory) {

      let _mongo
      do {
        _mongo = await MongoMemoryServer.create({
          instance: {
            ip: '0.0.0.0',
            storageEngine: 'wiredTiger',  // I did this as a test, removed, it still didn't work
            args: ['--enableMajorityReadConcern=false'] // same here, but it didn't make a difference.
          }
        })
      } while(_mongo.getUri() === null)


      // set settings
      const _mongoUri = _mongo.getUri().replace(/\//gi, '').split(':') // NOTE: I never am able to connect and get the getUri method.
      this.databaseInfo.host = _mongoUri[1]
      this.databaseInfo.port = _mongoUri[2]

      mongoDbUri = 'mongodb://' + this.databaseInfo.host + ':' + this.databaseInfo.port
    }

  }
}