On discourse’s forums, I have read 1Gb and max 2Gb of memory should be good, however, those two options do not run my website smoothly and when I run my docker-compose file on 4Gb of memory, it works at around 90-95%, which is a lot. Other things in the docker-compose file are a static HTML website I built and an nginx proxy. Can you please let me know if there is some sorta of trick or settings on discourse to make it run smoother on lower RAM
You need to tweak the amount of workers and the DB buffer. So, the options you would need to tweak would be:
db_shared_buffers
UNICORN_WORKERS
Here you can see the estimates of usage per Unicorn
Discourse is able to run with 512MB of RAM its not a good experience but it’s possible. You issue is that Discourse reviews the server (as the whole node) resources and plans the resource usage to take advantage of as most resources as possible because Discourse makes the assumption it will run alone.
Can you share the docker-conpose file here so we can make appropriate suggestions?
Here is the docker-compose file. I had to remove some of the images links since I cannot post more than 2, however, this should be good. Where would I place the DB buffer environment variable?
version: '2'
services:
nginx:
image: ''
#image: 'itshady/nginx'
ports:
- '80:80'
depends_on:
- discourse
intellectus:
image: '
# image: 'itshady/intellectus'
ports:
- '90:80'
postgresql:
image: ''
environment:
- ALLOW_EMPTY_PASSWORD=yes
volumes:
#- './data/postgresql:/bitnami/postgresql'
- 'postgresql_data:/bitnami/postgresql'
redis:
image: ''
environment:
- ALLOW_EMPTY_PASSWORD=yes
volumes:
- 'redis_data:/bitnami'
discourse:
image: 'docker.io/bitnami/discourse:2-debian-10' #2-debian-10
ports:
- '100:3000'
depends_on:
- postgresql
- redis
volumes:
- './data/discourse:/bitnami'
environment:
- POSTGRESQL_HOST=postgresql
- POSTGRESQL_ROOT_USER=postgres
- POSTGRESQL_CLIENT_CREATE_DATABASE_NAME=bitnami_application
- POSTGRESQL_CLIENT_CREATE_DATABASE_USERNAME=bn_discourse
- POSTGRESQL_CLIENT_CREATE_DATABASE_PASSWORD=bitnami1
- DISCOURSE_POSTGRESQL_NAME=bitnami_application
- DISCOURSE_POSTGRESQL_USERNAME=bn_discourse
- DISCOURSE_POSTGRESQL_PASSWORD=bitnami1
#- DISCOURSE_HOSTNAME=forums.intellectus.ca
- DISCOURSE_HOSTNAME=${FORUM_URL}
- DISCOURSE_EMAIL=
- SMTP_HOST=
- SMTP_PORT=
- SMTP_USER=
- SMTP_PASSWORD=
sidekiq:
image: 'docker.io/bitnami/discourse:2-debian-10'
depends_on:
- discourse
volumes:
- './data/discourse:/bitnami'
command: 'nami start --foreground discourse-sidekiq'
environment:
- DISCOURSE_POSTGRESQL_NAME=bitnami_application
- DISCOURSE_POSTGRESQL_USERNAME=bn_discourse
- DISCOURSE_POSTGRESQL_PASSWORD=bitnami1
- DISCOURSE_HOST=discourse
- DISCOURSE_PORT=3000
#- DISCOURSE_HOSTNAME=forums.intellectus.ca
- DISCOURSE_HOSTNAME=${FORUM_URL}
- SMTP_HOST=
- SMTP_PORT=
- SMTP_USER=
- SMTP_PASSWORD=
volumes:
postgresql_data:
driver: local
# external: true
redis_data:
driver: local
# external: true
discourse_data:
driver: local
# external: true
If you wrap your raw code with lines that contain only ``` they will be much easier to read.
As step one, I recommend that you use ./launcher
to build and launch your Discourse instance. If you want, you can use ./launcher
to build it and then launch it with docker-compose
(at least I’ve done similar to build and launch Discourse images with kubernetes).
You are using bitnami images and those are completely unsupported by Discourse maintainers and will probably use more RAM than using the Discourse official Standard Installation