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  1. Minecraft: Java Edition
  2. MC-245817

Server constantly writes to disk at about 500kB/s

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    • Icon: Bug Bug
    • Resolution: Fixed
    • 22w05a
    • 1.18.1
    • Community Consensus
    • Performance
    • Normal

      Since the release of version 1.18, the minecraft server constantly writes about 500kB/s to the disk, even if no players are currently online. I attached an iotop screenshot showing three IO-Worker threads of the java server executable, and a list of all currently open file descriptors of that process.

      To me, this is an issue, because the server runs on an SSD drive, that wears down by write accesses.

        1. fileaccess-trace.lst
          28 kB
          Bernhard Gräuler
        2. image-2021-12-21-11-08-22-231.png
          14 kB
          Charles Fabbri
        3. image-2021-12-21-12-22-05-444.png
          30 kB
          Charles Fabbri
        4. image-2021-12-21-22-26-19-814.png
          37 kB
          Charles Fabbri
        5. iotop-minecraft-15m-after-startup.png
          170 kB
          Bernhard Gräuler
        6. iotop-minecraft-2m-after-startup.png
          114 kB
          Bernhard Gräuler
        7. iotop-minecraft-30m-after-startup.png
          212 kB
          Bernhard Gräuler
        8. iotop-minecraft-60m-after-startup.png
          185 kB
          Bernhard Gräuler
        9. iotop-screenshot.png
          40 kB
          Bernhard Gräuler
        10. latest-log-zero-players.png
          87 kB
          Bernhard Gräuler
        11. minecraft-server-1640040127143.apps
          418 kB
          Bernhard Gräuler
        12. minecraft-server-lsof.lst
          21 kB
          Bernhard Gräuler

            Unassigned Unassigned
            bernhard795 Bernhard Gräuler
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