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About Reddit, Lemmy and self-hosting it on Kubernetes
(tech.belidzs.hu)
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this post was submitted on 02 Jul 2023
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I also use kubernetes to run my Lemmy instance. Sadly,
pictrsuses their own "database" file which can only be opened by a single pod because it refuse to run if the "database" lock is already acquired by another pod, making scaling up the number of pods impossible. I wish they use postgres instead of inventing their own database. I suspect this is one of the reasons why those large Lemmy instances have difficulty scaling up their server.You mean pictrs can't scale, or the other pods cannot as well? I separated lemmy-ui, the backend, and pictrs into different pods. Haven't tried scaling anything yet though, but I did notice the database issue with pictrs when RollingRestart, had to switch to Recreate.
Only pictrs that can't scale. Lemmy ui and backend seems to be stateless.
Great to hear, that will make it super easy if I start allowing users on my instance.
This is a really interesting observation. Curious if the devs are aware that this breaks simple scalability efforts