XF 2.3 PHP-FPM service keeps needing to be restarted after sending a mailshot

[Sicilian]

Everytime we send a manual mailshot using DragonByte Mail for some strange reason we have to keep re-starting PHP-FPM service when though the server loads are low.

We have to basically keep re-starting the service until eventually the forum stabilises again. If I close the Forum is all fine, but if opened after a couple of minutes I have to keep restarting PHP-FPM.

If the board stays closed everything remains stable.

I'm totally baffled as to why this is happening and don't know where to start debugging this.

 

[Sicilian]

Its almost as if PHP-FPM can't handle extra visitor generated by the mailshot.

For example I've just enabled 'Under attack mode' in Cloudfare so that users have to verify they're human. Visitors have dropped from 200+ to under 100 and everthing is stable again.

 

[Paul B]

If the server can't cope with 200 concurrent visitors then it needs some tuning.

Currently there are over 2,000 visitors on this site and performance is the same as if there were 2.

 

[Sicilian]

If the server can't cope with 200 concurrent visitors then it needs some tuning.

Currently there are over 2,000 visitors on this site and performance is the same as if there were 2.

That's my feeling also, but could it be the server is being abused?

Is there a section on this Forum to request paid services to have a look at the server setup?

 

[Paul B]

The dedicated server forum is usually the best place to start: https://xenforo.com/community/forums/server-configuration-and-hosting.48/

If you do need to pay someone, you can post here: https://xenforo.com/community/forums/custom-service-development-requests.69/