sched_setaffinity alerts

[blunweon]

Hi there, been getting these alerts in the logs of Docker but otherwise the app works perfectly fine. Just wondering what they could mean?

[Zoey2936]

what cpu do you use? did you limit the cpu in docker? Thanks! Your compose file would be useful!

[blunweon]

I'm using a E5-2680v4. The Docker is running in a Proxmox LXC. I don't remember setting any affinity.

This is my compose.yaml file:

services:
  npmplus:
    container_name: npmplus
    image: zoeyvid/npmplus:latest
    restart: unless-stopped
    network_mode: host
    volumes:
      - /opt/npmplus:/data
      - /opt/npmplus:/tmp
    environment:
      - TZ=###myTZ
      - LOGROTATE=true
      - LOGROTATIONS=7
      - ACME_EMAIL=###mymail
      - ACME_SERVER=https://acme.zerossl.com/v2/DV90
      - ACME_EAB_KID=###mykey
      - ACME_EAB_HMAC_KEY=###mykey
      - ACME_MUST_STAPLE=false
      - ACME_OSCP_STAPLING=true
      - DEFAULT_CERT_ID=2
      #- REGENERATE_ALL=true #force regeneration of hosts files
  crowdsec:
    container_name: crowdsec
    image: crowdsecurity/crowdsec:dev
    restart: unless-stopped
    network_mode: host
    ports:
      - 7422:7422
      - 8080:8080
    environment:
      - TZ=###myTZ
      - COLLECTIONS=ZoeyVid/npmplus
    volumes:
      - /opt/crowdsec/conf:/etc/crowdsec
      - /opt/crowdsec/data:/var/lib/crowdsec/data
      - /opt/npmplus/nginx:/opt/npm/nginx:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
networks: {}

[Zoey2936]

I think it is related to the lxc, can you try test it in a kvm or directly on the proxmox host, please?
affinity is set here:

NPMplus/rootfs/usr/local/nginx/conf/nginx.conf

Line 6 in ec3fb79

worker_cpu_affinity auto;

maybe the lxc container misses permissions to set affinity?

[blunweon]

Is the default nginx.conf file exposed to via mountpoints in the Docker volume? It might be possible that the LXC container does not have permissions to set affinity as it already has affinity set. Is it possible to turn that particular variable off myself? I'll attempt to run it on a VM or Proxmox host itself.

Thank you for pointing me in the right direction!