After scaling cpu is still high

[Nuran Akimbek]

I have just completed scaling process - https://docs.nodebb.org/configuring/scaling/. The reason was that a significant number of users experienced high processor performance and frequent occurrence of error 503. Now while 3 process is running and only 5 connections. But cpu is high on first process. Community works slowly. May be all problem in Mongo database? My server configuration is good. 24 cpu and 100 GB RAM

[eeeee]

What version Nodebb are you currently running?

[phenomlab]

@Nuran-Akimbek what else is running on that server?

[Nuran Akimbek]

@eeeee 3.7.1

[Nuran Akimbek]

@phenomlab Wordpress websites. MySQL Community Server.

[Nuran Akimbek]

Our organization qualify all teachers in our country. The registration policy recently changed and we have created nearly 9,000 groups and categories in our community. Divided 85,000 users into small groups. Maybe because of this? Node js or mongo db works incorreclty?

[baris]

Are there any errors in the nodebb logs? The screenshot shows an uptime of 3m, what happens after it's been running for an hour or more?

[Nuran Akimbek]

@baris Last warning or error message from output log is - Failed to fetch latest version error - rate limit exceeded
Community works well when users at least 10. If more CPU rises up to 100 and very slow loading or 503 error