# Rocket.Chat user limitations

**URL:** <https://forums.rocket.chat/t/rocket-chat-user-limitations/560>\
**Category:** Community Support\
**Created:** [April 11, 2018, 7:37am UTC](https://forums.rocket.chat/t/rocket-chat-user-limitations/560 "2018-04-11T07:37:57Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![nikita.fidirko](https://avatars.discourse-cdn.com/v4/letter/n/919ad9/32.png) [@nikita.fidirko](https://forums.rocket.chat/u/nikita.fidirko)\
**Post date:** [April 12, 2018, 6:33am UTC](https://forums.rocket.chat/t/rocket-chat-user-limitations/560/3 "2018-04-12T06:33:52Z")

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Aaron, thanks for your reply.

What are the limitations for the number of **connected** users?

We’ve setup an instance of Rocket.Chat, with replica set and oplog tailing.  
We’ve also configured mongodb logrotate to avoid large extremely large log files.

First, we’ve created a small amount of users and checked the login time (via websocket API).  
The “login” method takes several (4-5) seconds to execute.

Then, we’ve added even more users (150 000+) and checked the login time.  
After that, the"login" method takes 20-30 seconds to execute.

Moreover, we didn’t have any significant number of connections to our Rocket.Chat server at that moment, so I assume that running several Rocket.Chat instances won’t help us in this case.

That’s why we are worried about Rocket.Chat performance correlation with the overall number of users.

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