I have the same issue on my server. When starting minecraft (1.7.4 vanilla, on a linux debian wheezy 64bits) everything is fine until I log in, then the RAM used starts increasing and increasing (1GB allocated at startup in java command line, 4GB max available on my PC) Then once it starts swapping (ie > ~3GB used !) it becomes being unresponsive, and finally I get kicked out of the server with
The RAM doesn't go down, I have to stop the minecraft server (well, kill it, it doesn't want to shutdown...).
Logs from an example where I got kicked after 30 minutes (I didn't move a lot at all, maybe 4 chunks max for X/Z, since I'm building a tower)
[14:27:47] [Server thread/INFO]: Preparing spawn area: 87%
[14:27:48] [Server thread/INFO]: Done (4.834s)! For help, type "help" or "?"
[14:37:48] [User Authenticator #1/INFO]: UUID of player Soqaris is xxx
[14:37:48] [Server thread/INFO]: Soqaris[xxx] logged in with entity id 498 at (1066.6724007394362, 207.0, -425.10808115528613)
[14:37:48] [Server thread/INFO]: Soqaris joined the game
[15:07:43] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2558ms behind, skipping 51 tick(s)
[15:08:33] [Server thread/INFO]: Soqaris lost connection: TranslatableComponent{key='disconnect.genericReason', args=[Internal Exception: java.io.IOException: Broken pipe], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}
The high load of my machine is due to the minecraft server (90% of the RAM used, the CPU load is ~50% on a 2-cores CPU so it's not a bottleneck or an issue here)
Soqaris
I have the same issue on my server.
When starting minecraft (1.7.4 vanilla, on a linux debian wheezy 64bits) everything is fine until I log in, then the RAM used starts increasing and increasing (1GB allocated at startup in java command line, 4GB max available on my PC)
Then once it starts swapping (ie > ~3GB used !) it becomes being unresponsive, and finally I get kicked out of the server with
The RAM doesn't go down, I have to stop the minecraft server (well, kill it, it doesn't want to shutdown...).
Logs from an example where I got kicked after 30 minutes (I didn't move a lot at all, maybe 4 chunks max for X/Z, since I'm building a tower)
The high load of my machine is due to the minecraft server (90% of the RAM used, the CPU load is ~50% on a 2-cores CPU so it's not a bottleneck or an issue here)