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    posted a message on Minecraft server/world keeps crashing after tick takes too long

    Hey guys,

    I'm having issues with my MC server, it's lagging and keeps crashing, I hope you can help me out of my misery!

    Here are some infos on the server:

    Vanilla Minecraft 1.15.2
    running on V-Server with 4 Vcores and 8GB RAM
    running on Ubuntu 18.04.3 LTS
    with no other significant servers/applications running

    View Distance 12
    Survival Mode

    Maximum of 4 players
    World is around 1GB in size
    No gigantic monster farms or similar

    One time I accidentally run the '/bossbar' command without any parameters. That created a bar at the top, but also introduced lag. Since then, even after I removed the bossbar the server is still laggy. Ticks are taking way too long.

    [10:14:40] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running ...ms or ... ticks behind
    [10:18:48] [Server Watchdog/FATAL]: A single server tick took 60.00 seconds (should be max 0.05)
    [10:18:48] [Server Watchdog/FATAL]: Considering it to be crashed, server will forcibly shutdown.

    Here's my troubleshooting:

      • Running a debug session
        • Noticed in the log:
        • [17:59:45] [Server thread/WARN]: Something's taking too long! 'root.tick.levels.world minecraft:overworld.tick.entities.regular' took aprox 177.425314 ms

        • That sounds like we do have too many entities like animals, but as said, no gigantic farms or anything
        • What is an okay entity count I can check in the debug menu?

      • Server is lagging no matter where you are
        • No corrupted chunk or similar

    • Server doesn't have enough power?
        • I downloaded the map and ran it as a single player map on a powerful machine, still getting warnings about ticks taking too long

      • Map to big?
        • We did explore quite a bit and the map is 1GB in size, but the server is only handling the world where a player is present

      • World file broken?
        • I read that MCEdit or similar can fix corrupted chunks, but as said, the problem isn't specific to a chunk or location

    Don't know where else to look, help would be much appreciated!

    Thank you,

    best wishes,


    Posted in: Server Support and Administration
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