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Hey there, 

I am new to mybb. I am just wondering how many users/traffic can mybb handle.

If hardware is not a issue, what is the max users/traffic mybb's limit?

Thanks
It depends on the hardware and server configuration. Shared hosting is fine for most forums.
I had a forum running on MyBB with more then 4,000 members and 100+ online users at a time on a shared host without any problem. If you are thinking that your forum is quite big then you must shift from shared to private hosting.
Let's say I can have dedicated server. Can MyBB handle about 10 million register users and about half million users online?

Thanks
And what specs would this hypothetical dedicated server have? Also, MyBB would probably crash and burn under half a million simultaneous users.
How about the ultimate dedicated server plan from godaddy?

4 CPU Cores @ 3.1 GHz
32 GB memory
2 TB storage (RAID-1)^
Unmetered bandwidth
3 dedicated IPs

OK. so half million simultaneous users will crash myBB. What is max nubmers of simutaneous user can myBB support then?

At least a general idea?

Thanks
(2017-09-26, 03:27 AM)egelone Wrote: [ -> ]How about the ultimate dedicated server plan from godaddy?

OK. so half million simultaneous users will crash myBB. What is max nubmers of simutaneous user can myBB support then?

At least a general idea?

Thanks

First of all i hate godaddy more then any other service provider, and for your max simultaneous users on MyBB as i said earlier if your hardware is good quality with better processing speed it won't be a problem at all. You can easily handle 200+ mybb users simultaneously with only spare 256mb ram(excluding the server utilized ram including mysql, php and apache usage) you can count it up easily. Also if you good enough in servers you can setup caching engines like redis or APC(varnish have some issues with mybb) to reduce the server load. On MyBB a user uses around 3-5mb of ram when doing something, if user go idle so does the resource.
(2017-09-26, 03:04 AM)egelone Wrote: [ -> ]Let's say I can have dedicated server. Can MyBB handle about 10 million register users and about half million users online?

Thanks

10 million is a small number. That's no issue for MyBB. Half a million users online? You'll never reach that. Ever. And if you did, you'd have already upgraded as needed to deal with the traffic. You'd be way past a single server at that point.
For performance, you can change the sessions table to use the MEMORY engine. Whenever MySQL shuts down you will lose session information, but that's minor (at most, users will have to log in again). RAM is faster than disk space, assuming you have enough.
MyBB has quite a few O(N) elements, so it probably would crash and burn at a some point regardless of resources. It simply isn't built for running a server cluster. You're also going to run into trouble with scaling MySQL at a certain point. Quite a few really, really big sites roll their own custom software.

What reason do you have to believe that you'll need to scale so far? Are you launching a forum for a large site or something? Half a million users is possible with a single server, but not with MyBB and I'm not sure the competition can do it either.

You would likely need specialist software written in a really fast language with a ton of optimisations, there are actually plenty of them, but they lack the features which make MyBB competitive like forum permissions.
For the most part, it's cheaper to throw a couple extra servers at the problem, than to hire someone to write and maintain custom software.

As for GoDaddy's largest package? I have no idea, but they have a pretty bad reputation.
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