Written by Jan Kaiponen
on November 24, 2020

Starting the MongoDB Crash Course

I started to watch the crash course video.

Downloaded MongoDB server files into my coursework directory.

I wanted to see if I can start the server and conntect using the CLI just by using the README and help.

I created a local data/db directory.

sudo mkdir -p ../data/db

sudo chmod -R go+w ../data/db

./mongod --dbpath "../data/db"

Server started. I opened another terminal window, and started the CLI (shell) in the bin directory:

./mongo

Got some warnings in the shell.

Access control not enabled for the database. R/W access to data and configuration is unrestricted
The server is bound to localhost. Remote systems will be unable to connect to this server.

Nothing to be worried about at this time.

OK - Easier to install using brew. I’m just gonna delete what I downloaded previously.

Install on macOS

Github: mongodb/homebrew-brew

brew tap mongodb/brew

brew tap | grep mongodb

brew install mongodb-community@4.4

Starting / Stopping the Service

To run MongoDB (i.e. the mongod process) as a macOS service, issue the following:

brew services start mongodb-community@4.4

To stop a mongod running as a macOS service, use the following command as needed:

brew services stop mongodb-community@4.4

To run MongoDB (i.e. the mongod process) manually as a background process, issue the following:

mongod --config /usr/local/etc/mongod.conf --fork

To stop a mongod running as a background process, connect to the mongod from the mongo shell, and issue the shutdown command as needed.

I am gettin errors from brew saying my macOs version “mountain_lion” is not supported. I’m running the latest version .. will have to google the problem.

I am following along the video

> show dbs
admin   0.000GB
config  0.000GB
local   0.000GB
test    0.000GB
> use test
switched to db test
> show collections
products
> db.drop
db.dropAllRoles(  db.dropAllUsers(  db.dropDatabase(  db.dropRole(      db.dropUser(
> db.dropDatabase()
{ "dropped" : "test", "ok" : 1 }
> show dbs
admin   0.000GB
config  0.000GB
local   0.000GB
> use acme
switched to db acme
> db
acme
> db.createCollection('posts')
{ "ok" : 1 }
> show collections
posts
>

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