Crontab modification

javiervalencia

Hello World,

We have Proxmox clusters to virtualize OML in KVM (they add hundreds of CPUs), it allows us to densify to better amortize that infrastructure. But we see that every X minutes there are 100% CPU spikes that match on all machines. That is due to crontab executions. Causes ongoing calls to have audio issues. Normal CPU usage outside of those peak usage is ₂₅%.

Are there any guidelines or guidelines to reorganize and optimize the execution of those tasks? Can they move one or five minutes so they don't match the other machines? Can the interval be changed?

Regards, JV

omnileads

Hi Sir,

The configured crons allow the system to calculate relevant values in the related views. The use of them depends on the use you have right now in your environment.

If you are not using Preview campaigns or the Preview traffic is not that much, you can disable/delay actualizar_campanas_preview cron some more minutes. The same applies to the rest of the crons: i.e. actualizar_reportes_llamadas_entrantes, _dialer, etc.

Crons query database in order to successfully update Redis, that then will be serving supervision views. So they cannot just be disabled as they are needed. If they are not finishing on time (that is to say, many python processes alive during a long time), maybe this can be related to a performance issue on your database resources.

We are working on this by the way, trying to optimize it in the near future.

Rgds,