Hi Everyone
I'm settings add configuration on odoo.conf.

limit_memory_hard = 4697620480

limit_memory_soft = 5637144576

limit_request = 8192

limit_time_cpu = 60

limit_time_real = 120

workers = 5

max_cron_threads = 2

my problem is odoo stopping service. After settings, odoo can be used normally. But after about 30 minutes logs show message

 
odoo.service.server: Stopping gracefully 
odoo.service.server: Worker (40) exiting. request_count: 110, registry count: 1.
odoo.service.server: Worker (41) exiting. request_count: 108, registry count: 1.

my server spec is 4 core ram 8 GB. 

I'm run Odoo on docker.
 Who can tell me the cause and how to fix it? Thank you.