CODEWITHSUNDEEP
mongodbubuntu
Winnie Tsou
Winnie Tsou

Reputation: 73

What's difference between using "sudo service mongod start" and "mongod"?

I'm using Ubuntu 16.04, and I can't understand what's difference between using 

sudo service mongod start

and

mongod

In mongodb official documentation here

said that to start mongodb just use sudo service mongod start, and its log stores in /var/log/mongodb. However, I try to run mongodb using mongod this way, log shows on terminal, and after I turn off the terminal, I can not find the log file.

It is confused.

Upvotes: 3

Views: 986

Answers (1)

B. Fleming
B. Fleming

Reputation: 7230

sudo - Runs the command as root.
service - Manages the following program as a daemon (background process).
mongod - Obviously the MongoDB program in question.
start - A command that tells service what to do with the program in question.

Together, we get "I want to start mongod as a background process, and I want to run it as root so it has permission to do the things it needs to do". Running mongod by itself, however, runs the program in an ordinary fashion, i.e. as a foreground process. Typically you want to run it as a background process so that you're free to do other things, e.g. connecting to the database via shell access.

This is pretty simplified, but it should explain what you actually need to know at this point in time.

Upvotes: 5

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