this post was submitted on 06 Jun 2023
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Lemmy Support

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Support / questions about Lemmy.

Matrix Space: #lemmy-space

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Lemmy Devs: could you shed light on the range of scalability issues we're about to see with the reddit influx? (sopuli.xyz)
submitted 2 years ago* (last edited 2 years ago) by theory@sopuli.xyz to c/lemmy_support@lemmy.ml
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I expect lemmy.ml to be hugged to death, but that's just a DoS.

More interestingly would be how the activitypub network reacts under reddit-like loads and behaviour, and as i understand it, things shouldnt be too bad?

Is lemmy scalable?

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[–] RoundSparrow@lemmy.ml 7 points 2 years ago* (last edited 2 years ago)

I have some suspicions that the /communities page is dong a live database query to get counts of subscribers and monthly visits (on every hit to the page) and this is putting a heavy load on the SQL database.

Almost every time I hit this page in the past 48 hours I see > 4 second delay before I get the first page of results. I'm also getting internal errors/failures on loading the page. Typical error is a single line of output: "404: FetchError: request to http://lemmy:8536/api/v3/site"