Manuel Kasten
Assigned
Reported
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In contrast to Guntram Blohm, I am able to reproduce this issue locally on a completely vanilla server by using toxiproxy to simulate a bad network connection.
For server view distance 12:
At 100kb/s I am no longer able to login or travel from the nether to the overworld without timing out. (Both still working at 150kb/s).
Expected behavior: lowering the client view distance should reduce the amount of data sent from the server to the client, allowing players with slower connections to participate.
To add to apple502j, the "if necessary" part is key here. Usually the game only does this once at start of online mode. If the request fails however, it will try to fetch the list again with every chat message, unless it tried to do so less than 2 minutes ago.
That explains why not every chat message is affected (time between lag spikes is at least 2min).
It also explains how this could start happening without a minecraft update: Something changed on MS/Xbox side, and the block list requests from minecraft are failing everytime for migrated users.
This is an issue on our SMP as well (1.18.1). We needed to reduce server view distance for some players to be able to connect at all. Their client view distance was set to low already, but not taken into account.
Huh. I searched for it, but obviously overlooked it. Sorry.
Confirmed in 1.19. The proposed solution will also fix at least some of the problems of MC-228420.