My server was spamming the same thing under 15w51b and now that I upgraded to 16w02a the console is very quiet.
I too can confirm this issue on a new server ( ubuntu 14..04 LTS ) the server details ...
Intel(R) Xeon(R) CPU E3-1225 V2 @ 3.20GHz
2 120GB SSD
32GB Ram (only using 4GB for MC server)
Running snapshot 15w51b
With one player the server seems to do fine. Running around 20% CPU usage and 6% ram, although tons of console spam ... (player) is sending move packets too frequently ... between three to eight lines per second ranging from 6 packets to 18 since last tick.
As soon as another player joins the server jumps up to about 60% CPU usage, ram stays about the same, but the CPU will eventually start spiking past 100% CPU usage and eventually crash after about 20 min of game play.
Here's the last server crash (from yesterday) if that helps. ... http://pastebin.com/kjBUsHtf
Let me know if there is something else I can provide as I am new to bug reporting.
Thanks ... Pops
Is there any work-around for this? the logging in and out is not reliable.
Is there not a teleport command that can be used to teleport to the nether in vanilla. Or perhaps the use of command blocks? All the command block tutorials I see just spawn a portal which will only cause the same issue.
I would like to work through getting to the end, but this bug means there's no way to accomplish this without cheats. I understand it's a snapshot and not meant for final gameplay, just wondered if there's a way to bypass the portals until a stable release?
(btw this still happens in 16w02a)