Update /deployment/docker

[tsprhdm]

https://questdb.com/docs/deployment/docker/
https://questdb.com/docs/getting-started/capacity-planning/

should contain some info on how to correctly set /etc/docker/daemon,json.

I got the the fs.file-max limit is too low [current=524288, recommended=1048576] message, although ulimits were correct on the host.

creating /et/docker/daemons.json

 {"default-ulimits": {
    "nofile": {
      "Name": "nofile",
      "Hard": 1048576,
      "Soft": 8096
    },
    "nproc": {
      "Name": "nproc", 
      "Hard": 500,
      "Soft": 500
    }
  }
}

and restarting docker fixed the problem by raising the ulimit in the container. nproc values and soft limit just fell from the sky ;-) your mileage my vary.

[PedroHenrique0713]

I've opened #477 for this. It adds a "Raise system limits" section to the Docker deployment guide covering --ulimit nofile=1048576:1048576 (with the Docker Compose and daemon.json equivalents), plus vm.max_map_count on the host, using the recommended 1048576 values from the capacity planning guide.