Ok, first off I host the Public AllGamer server which is pretty popular with a peak at ~45 people or so and usually averages over 20 from what we've seen. I'm hosting it for a few friends personally, but said why not let other people join. I have a pretty large background when it comes to hosting gameservers and other applications/services as it's my fulltime job. All of that being said as one of the larger servers that we can see on the server list we've been getting a LOT of lockups and required restarts. After the server has been running a while on a world we'll see one core pegging at 100% as well. Could this be due to fire spread? Obviously that thread is pretty important, but I have no way of figuring out what it's for. Here's some of the various console logs we've copied before having to ctrl+c the server and restart it: EDIT: I forgot to mention this was happening on 30.12 and now also happening on 30.15 Jan 11, 2015 12:59:30 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:31 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:32 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:33 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:33 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:34 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:35 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:35 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionJan 11, 2015 12:59:37 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionGOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7GOT PACKET FROM UNKNOWN CONNECTION guid=-1 packetId=7Jan 11, 2015 1:00:23 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionDisconnected player aceReceived packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Unknown command broadcast RestartingQuitJan 11, 2015 1:00:23 AM zombie.gameStates.IngameState updateSEVERE: nulljava.lang.NullPointerExceptionDisconnected player in CurrentCell.getObjectList() removedloaded chunks for cell 175,93 ms=7.126931loaded chunks for cell 175,94 ms=8.129547Received packet type=53 connection is null.Received packet type=7 connection is null.Received packet type=34 connection is null.Received packet type=7 connection is null.Received packet type=53 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=53 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=53 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=53 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=53 connection is null.Received packet type=12 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.User Jo is trying to connect.User Lord Moldy Butt is trying to connect.Received packet type=2 connection is null.User internetfr3ak is trying to connect.User Butt Search 2012 is trying to connect.Connected new client Butt Search 2012 ID # 0 and assigned DL port 16262testing TCP download port 16262Received packet type=2 connection is null.Received packet type=7 connection is null.Received packet type=67 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=2 connection is null.Received packet type=7 connection is null.Received packet type=67 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=67 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=7 connection is null.Received packet type=34 connection is null.Received packet type=34 connection is null.