UPDATE: @SDF@lemmy.sdf.org has responded

It is temporary as lemmy.world was cascading duplicates at us and the only way to keep the site up reliably was to temporarily drop them. We’re in the process of adding more hardware to increase RAM, CPU cores and disk space. Once that new hardware is in place we can try turning on the firehose. Until then, please patient.

ORIGINAL POST:

Starting sometime yesterday afternoon it looks like our instance started blocking lemmy.world: https://lemmy.sdf.org/instances

A screenshot of the page at https://lemmy.sdf.org/instances showing the lemmy.world instance on the blocklist

This is kind of a big deal, because 1/3rd of all active users originate there! A pie chart depicting the top instances by usershare. The lemmy.world instance is in the top spot with 1/3 of the total usershare

Was this decision intentional? If so, could we get some clarification about it? @SDF@lemmy.sdf.org

  • SDF@lemmy.sdf.orgMEnglish
    29·
    1 year ago

    Here is where we’re at now.

    • increased cores and memory, hopefully we never touch swap again
    • dedicated server for pict-rs with its own RAID
    • dedicated server for lemmy, postgresql with its own RAID
    • lemmy-ui and nginx run on both to handle ui requests

    Thank you for everyone who stuck around and helped out, it is appreciated. We’re working on additional suggested tweaks from the Lemmy community and hope to let lemmy.world try to DoS us again soon. Hopefully we’ll do much better this time.

    • chaorace@lemmy.sdf.orgOPEnglish
      13·
      1 year ago

      Killer stuff! Sorry for my contributing undue pressure on top of what was probably already a taxing procedure happening in the server room.

      Out of curiousity: how do you feel about Lemmy performance so far? I’m actually a little bit surprised that we already managed to outstrip the prior configuration. I suppose that inter-instance ActivityPub traffic just punches really hard regardless of intra-instance activity?

    • estee@lemmy.sdf.orgEnglish
      8·
      1 year ago

      What can we (ordinary users) do to help? I’m in Europe, would it be better if I used the SDFeu server as my home instance?

      • SDF@lemmy.sdf.orgMEnglish
        12·
        1 year ago

        Yes, the fediverse wants to be decentralized, so it is encouraged to use what works best for you. lemmy.sdfeu.org is located in Düsseldorf, Germany.