Will nodebb start multiple workers on a multiple core server?

[CalPeterWu]

Just want to know.

[baris]

Right now no. We might look into it in the future though.

[CalPeterWu]

@baris
So is there anyway I can use multiple processes to speed up?
Like start two processes and use the nginx to do the load balance?

[baris]

I believe we would have to change some of the code in core so you can start two instances that listen on different ports. Right now it listens on whatever is set in config.json.

[CalPeterWu]

@baris
Thanks a lot for the quick response.
Looking forward to that feature.

[julian]

@CalPeterWu @baris Off-hand, I know that you may be able to use pm2 to run multiple instances of NodeBB listening on the same port. You may want to give that a shot.

[Guiri]

So are these from the same NodeBB process? I assume that each loader starts an app -d?

17357 user   20   0 1010M  119M  6448 S  0.0  6.5  0:03.39 /usr/local/bin/node ./app -d start
17359 user   20   0 1010M  119M  6448 S  0.0  6.5  0:00.79 /usr/local/bin/node ./app -d start
17360 user   20   0 1010M  119M  6448 S  0.0  6.5  0:00.81 /usr/local/bin/node ./app -d start
17361 user   20   0 1010M  119M  6448 S  0.0  6.5  0:00.80 /usr/local/bin/node ./app -d start
17362 user   20   0 1010M  119M  6448 S  0.0  6.5  0:00.83 /usr/local/bin/node ./app -d start
17356 user   20   0 1010M  119M  6448 S  0.0  6.5  3:18.65 /usr/local/bin/node ./app -d start

16514 user   20   0  683M 13952  5188 S  0.0  0.7  0:00.00 /usr/local/bin/node /home/user/nodebb/loader -d start
16515 user   20   0  683M 13952  5188 S  0.0  0.7  0:00.00 /usr/local/bin/node /home/user/nodebb/loader -d start
16516 user   20   0  683M 13952  5188 S  0.0  0.7  0:00.00 /usr/local/bin/node /home/user/nodebb/loader -d start
16517 user   20   0  683M 13952  5188 S  0.0  0.7  0:00.00 /usr/local/bin/node /home/user/nodebb/loader -d start
16518 user   20   0  683M 13952  5188 S  0.0  0.7  0:00.00 /usr/local/bin/node /home/user/nodebb/loader -d start
16513 user   20   0  683M 13952  5188 S  0.0  0.7  0:00.09 /usr/local/bin/node /home/user/nodebb/loader -d start

[julian]

@Guiri Right, each loader instance starts an app instance. We may expand this so that the loader will spawn x-1 app.js instances, where x is the number of cores.

[dibu]

@julian Can you use standart NodeJS Cluster http://nodejs.org/api/cluster.html for multi-core as it seems to be a better solution. And it is better for NodeJS then use of pm2 or NginX to run on multi-cpu because of less overhead.

[julian]

@dibu Yes, most likely would look into cluster module first before rolling my own solution