I am running my nodejs server on kubernetes cluster using Ingress. I am using below to prevent timeouts.
nginx.ingress.kubernetes.io/proxy-connect-timeout: "120"
nginx.ingress.kubernetes.io/proxy-read-timeout: "180"
nginx.ingress.kubernetes.io/proxy-send-timeout: "180"Still i get 502 bad gateway error. Its not consistent, i get 502 at 7 sec, 20 sec 60 sec etc.
When i see Ingress logs, i see below errors
shm_add_upstream::shm_add_node(host:port)failed while logging request
shm_add_node::ngx_slab_alloc_locked() failed: used_size[6313245], used_node[2542] while logging request,
shm_add_server() failed while logging requestIs there a way to fix above issue? Is it related to any memory issue?
Check the shared memory size in use by nginx-module-vts
Set to more than 32M shared memory size by default.
vhost_traffic_status_zone shared:vhost_traffic_status:32m
If the issue still appears, increase to more than (usedSize * 2).
Example nginx.conf
http {
vhost_traffic_status_zone;
vhost_traffic_status_zone shared:vhost_traffic_status:32m;
}