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Bug
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Resolution: Duplicate
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None
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Minecraft 1.8.3
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None
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-- System Details --
Details:
Minecraft Version: 1.8.3
Operating System: Linux (amd64) version 3.2.0-4-amd64
CPU: 4x Intel(R) Core(TM) i3 CPU 540 @ 3.07GHz
Java Version: 1.7.0_75, Oracle Corporation
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 650262120 bytes (620 MB) / 1143996416 bytes (1091 MB) up to 3221225472 bytes (3072 MB)
JVM Flags: 8 total; -Xms1024M -Xmx3072M -Xloggc:/srv/minecraft/logs/server0-gc.log -XX:+PrintGCDateStamps -XX:+UseG1GC -XX:MaxGCPauseMillis=500 -XX:MaxPermSize=256m -XX:PermSize=256m
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Profiler Position: N/A (disabled)
Player Count: 1 / 20; [REMOVED]
Is Modded: Unknown (can't tell)
Type: Dedicated Server (map_server.txt)-- System Details -- Details: Minecraft Version: 1.8.3 Operating System: Linux (amd64) version 3.2.0-4-amd64 CPU: 4x Intel(R) Core(TM) i3 CPU 540 @ 3.07GHz Java Version: 1.7.0_75, Oracle Corporation Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 650262120 bytes (620 MB) / 1143996416 bytes (1091 MB) up to 3221225472 bytes (3072 MB) JVM Flags: 8 total; -Xms1024M -Xmx3072M -Xloggc:/srv/minecraft/logs/server0-gc.log -XX:+PrintGCDateStamps -XX:+UseG1GC -XX:MaxGCPauseMillis=500 -XX:MaxPermSize=256m -XX:PermSize=256m IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95 Profiler Position: N/A (disabled) Player Count: 1 / 20; [REMOVED] Is Modded: Unknown (can't tell) Type: Dedicated Server (map_server.txt)
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Unconfirmed
On my unmodified server I encountered a server crash triggered by hostile mobs spawning with no perceivable upper limit.
One of my regular players has 2 mob spawners that empty into a single area. The spawners are a sekeleton spawner and a cave spider spawner. Before 1.8.3 the server would cap mob generation at a certain point but in this scenario that cap appears to have been ignored. The player left the game to run and within 30 minutes enough mobs had spawned to crash the game. Restarting the server to clear them out showed that 641 hostile mobs had been allowed to spawn while a single player was online.
It is worth noting that in the past this setup has been able to function without spawning out of control and did not result in enough lag to invoke the server watchdog to kill the server as happened here.
I have attached the crash report generated by the server with the player names removed.