Every 10 minutes (11:35, 11:45, 11:55, 12:05 etc. Not relative to when server is started) my server lags and sometimes drops every player. A lot of people say this is from the world autosaving which it does appear to be but unfortunately it still happens every 10 minutes without fail whether or not I have /save-on or /save-off With nolagg enabled it prints the following: Code: [WARNING] [NoLagg TLN] The main thread failed to respond after 10 seconds [WARNING] [NoLagg TLN] What follows is the stack trace of the main thread [WARNING] [NoLagg TLN] This stack trace will be further refined as long as the thread is stuck [INFO] at java.io.WinNTFileSystem.delete0(Native Method) [INFO] at java.io.Win32FileSystem.delete(Unknown Source) [INFO] at java.io.File.delete(Unknown Source) [INFO] at net.minecraft.server.WorldNBTStorage.save(WorldNBTStorage.java:183) [INFO] at net.minecraft.server.ServerConfigurationManagerAbstract.b(ServerConfigurationManagerAbstract.java:142) [INFO] at net.minecraft.server.ServerConfigurationManagerAbstract.savePlayers(ServerConfigurationManagerAbstract.java:632) [INFO] at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:477) [INFO] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406) [INFO] at net.minecraft.server.ThreadServerApplication.run(SourceFile:539) and sometimes: [WARNING] [NoLagg TLN] The main thread is still stuck, updated stack trace is: [INFO] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406) [INFO] Read timed out [WARNING] Can't keep up! Did the system time change, or is the server overloaded? The spike still happens without nolagg. Windows Server 2008 x64 Occurs on both java 1.6 and 1.7 (x64) Have tried a heap of different startup scripts but as usual they don't act how people think they do. Using java -Xmx16384M -Xms16384M -jar at the moment I have noticed it on everything from 2317 to 2327. It was kind of hard to notice on builds prior to 2317 due to the whole plugin async chat thing. This occurs while running nothing but Towny, Vault, Essentials+groupmanager and Worldedit+worldguard+commandhelper. I have tried using /save-off but all that seems to have done for me is not unload chunks whereas the lag still happens. I have tried turning off any save feature in the plugins listed above. With just one player on the server it is, most of the time, nearly impossible to tell if it's happening or not and for this reason I am not sure of the issue with a vanilla bukkit server although I have seen many (poorly) documented accounts of the same issue on vanilla servers (also generally followed by some irrelevant miracle cure unconfirmed by the original poster) I'm not necessarily looking for something entirely solid but, at the very least, a way to work around this because I have seen many servers running without this issue. Thanks to anyone in advance for any help that could be offered. Edit: Same results with no plugins and with fresh map.