What is the difference between pm2 restart and pm2 reload

node.js pm2
Ayan picture Ayan · Jul 3, 2017 · Viewed 22.9k times · Source

I have a nodejs app running on server.

When should I use pm2 restart,and when should pm2 reload be used?

Referred to the pm2 documention here,but couldn't figure out the difference in use case of the two.

Answer

robertklep picture robertklep · Jul 3, 2017

The difference is documented here:

As opposed to restart, which kills and restarts the process, reload achieves a 0-second-downtime reload.

The latter means (found here):

With reload, pm2 restarts all processes one by one, always keeping at least one process running.

It also states that:

If the reload system hasn’t managed to reload your application, a timeout will fallback to a classic restart.

Related questions

Can pm2 run an 'npm start' script

Is there a way for pm2 to run an npm start script or do you just have to run pm2 start app.js So in development npm start Then in production with pm2 you would run something like pm2 start …

Read More
mongoError: Topology was destroyed

I have a REST service built in node.js with Restify and Mongoose and a mongoDB with a collection with about 30.000 regular sized documents. I have my node service running through pmx and pm2. Yesterday, suddenly, node started crapping out …

Read More
How to pass arguments to app using pm2?

I am using pm2 to start my app but i am not able to pass argument to it. the command I am using is pm2 start app.js -- dev. Though this works with forever.

Read More