submitted 1 year ago by DreadTowel@lemmy.world to c/lemmyperformance@lemmy.ml

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It looks like the lack of persistent storage for the federated activity queue is leading to instances running out of memory in a matter of hours. See my comment for more details.

Furthermore, this leads to data loss, since there is no other consistency mechanism. I think it might be a high priority issue, taking into account the current momentum behind growth of Lemmy...

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[-] Gashole711@lemmy.world 1 points 1 year ago

Sorry. I didn't realize XDCR was not available in the community edition.

this post was submitted on 05 Jul 2023

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Lemmy Server Performance

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lemmy_server uses the Diesel ORM that automatically generates SQL statements. There are serious performance problems in June and July 2023 preventing Lemmy from scaling. Topics include caching, PostgreSQL extensions for troubleshooting, Client/Server Code/SQL Data/server operator apps/sever operator API (performance and storage monitoring), etc.

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