Hi folks, We have been running our own instances of Discourse in OpenShift for the last years, and in the last months (as of January 2026 approx and more or less aligned with the new approach explained in Introducing pre-compiled JS assets for self-hosters and Introducing a new build system for pl…

Is your total Memory 4g? If so do you have a swap setup? Can you share server specs?

Hi David, The list of extra plugins are: # - Trade buttons (used on Marketplace) - git clone --depth=1 https://github.com/jannolii/discourse-topic-trade-buttons.git # - Saved Searches - git clone --depth=1 https://github.com/discourse/discourse-saved-searches.git …

Hi Heliosurge, Nodes are 8 cpu / 30 GiB ram. In normal conditions, a forum used to consume 1 cpu and 2-3 Gb max of ram (including precompiling). No swap configured. I understood that swap is used here when there are memory constraints, which should not be the case here. However, I’m more “worried”…

Well your server spec shouldn’t need swap. The team member David here likely able to best help

Does the memory usage subside as soon as the assets:build task is done?

Hi @david , Does the memory usage subside as soon as the assets:build task is done? Nope. I digged further and there is something strange. Before precompiling:build, this is the list of plugins: /var/www/discourse$ ls plugins/ automation discourse-akismet discourse-data-exp…

It’s always advisable to have swap. It’s a very good idea to enable the kernel to overcommit. It can substantially reduce your peak memory needs. I’d sort out those two things and then try again. For overcommit, see [afbeelding] MKJ's Opinionated Discourse Deployment Confi…

Hi @Ed_S , Thank you for your message. [afbeelding] Ed_S: vmstat 5 5 I did diagnose and this is what I’m getting: vmstat 5 200 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st …

Ah, you saw an OOM, great. That’s definitive. ulimit has nothing to do with this. Add swap. There’s no reason not to, other than lack of disk space. Add 8G or 16G, try again. You want to get to a working state. Then you can try to measure what process is blowing up, if you wish. Set up overcom…

Excessive consumption of memory due to precompiling assets

Ondersteuning

david (David Taylor) 4 mei 2026 om 16:01 2

Are you able to share a list of plugins which you have installed?

Topic		Antwoorden	Weergaven
Precompiling assets takes 20 minutes Self-hosting server-resources	18	1374	31 januari 2024
Failed to bootstrap due to out of memory killer Bug	36	2562	3 mei 2021
New Install Bootstrap Fail in 'bundle exec rake themes:update assets:precompile' Self-hosting	7	502	21 februari 2024
Introducing pre-compiled JS assets for self-hosters Announcements	29	1003	27 november 2025
Failed to upgrade discourse instance to Feb 15 2022 Self-hosting server-resources	30	2890	23 maart 2022

Excessive consumption of memory due to precompiling assets

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