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  1. Minecraft: Java Edition
  2. MC-45634

Dedicated server went unresponsive, created a bug report, OurOfMemoryError

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    • Icon: Bug Bug
    • Resolution: Invalid
    • None
    • Minecraft 1.7.4
    • None
    • Unconfirmed

      Below is the crash report the server saved to disk. I couldn't find anywhere more specific to post it and @Dinnerbone is always telling people to report bugs.

      I realise we can (and how to) increase the RAM the Java process is allocated, but we have problems with the server running out of physical memory (it has 8Gb) and it starts swapping to disk and everything slows to a crawl.

      Possibly related: we are almost constantly receiving "Can't keep up! Running 401652ms behind, skipping 8033 ticks." messages in the log. That's an extreme example, but it's almost always 20-30,000 ms, 400-600 ticks. This Debian 7 server has four 2.4GHz cores, 8Gb RAM and is running on an internet connection way better than fibre.

      ---- Minecraft Crash Report ----
      // I just don't know what went wrong

      Time: 23/01/14 19:54
      Description: Ticking entity

      java.lang.OutOfMemoryError: GC overhead limit exceeded
      at java.util.ArrayList.iterator(ArrayList.java:737)
      at rn.e(SourceFile:300)
      at wx.e(SourceFile:25)
      at xh.e(SourceFile:177)
      at rm.h(SourceFile:1208)
      at rn.h(SourceFile:171)
      at wx.h(SourceFile:30)
      at xh.h(SourceFile:233)
      at afs.a(SourceFile:1368)
      at mm.a(SourceFile:480)
      at afs.g(SourceFile:1346)
      at afs.h(SourceFile:1253)
      at mm.h(SourceFile:365)
      at net.minecraft.server.MinecraftServer.u(SourceFile:510)
      at lm.u(SourceFile:265)
      at net.minecraft.server.MinecraftServer.t(SourceFile:440)
      at net.minecraft.server.MinecraftServer.run(SourceFile:357)
      at lb.run(SourceFile:616)

      A detailed walkthrough of the error, its code path and all known details is as follows:
      ---------------------------------------------------------------------------------------

      – Head –
      Stacktrace:
      at java.util.ArrayList.iterator(ArrayList.java:737)
      at rn.e(SourceFile:300)
      at wx.e(SourceFile:25)
      at xh.e(SourceFile:177)
      at rm.h(SourceFile:1208)
      at rn.h(SourceFile:171)
      at wx.h(SourceFile:30)
      at xh.h(SourceFile:233)
      at afs.a(SourceFile:1368)
      at mm.a(SourceFile:480)
      at afs.g(SourceFile:1346)

      – Entity being ticked –
      Details:
      Entity Type: Zombie (xh)
      Entity ID: 10949
      Entity Name: Zombie
      Entity's Exact location: 1341.32, 18.43, -5773.90
      Entity's Block location: World: (1341,18,-5774), Chunk: (at 13,1,2 in 83,-361; contains blocks 1328,0,-5776 to 1343,255,-5761), Region: (2,-12; contains chunks 64,-384 to 95,-353, blocks 1024,0,-6144 to 1535,255,-5633)
      Entity's Momentum: -0.22, -0.38, 0.11
      Stacktrace:
      at afs.h(SourceFile:1253)
      at mm.h(SourceFile:365)

      – Affected level –
      Details:
      Level name: world
      All players: 3 total; [mp['vaughanyboo'/22930, l='world', x=1256.70, y=64.00, z=-5847.63], mp['vaughanyp'/25957, l='world', x=1256.62, y=64.00, z=-5849.35], mp['Chris_PDB'/29293, l='world', x=1201.99, y=75.00, z=-5812.89]]
      Chunk stats: ServerChunkCache: 1828 Drop: 0
      Level seed: 6409060074287432023
      Level generator: ID 00 - default, ver 1. Features enabled: true
      Level generator options:
      Level spawn location: World: (252,64,240), Chunk: (at 12,4,0 in 15,15; contains blocks 240,0,240 to 255,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
      Level time: 1183944486 game time, 137193340 day time
      Level dimension: 0
      Level storage version: 0x04ABD - Anvil
      Level weather: Rain time: 34142 (now: false), thunder time: 16676 (now: false)
      Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
      Stacktrace:
      at net.minecraft.server.MinecraftServer.u(SourceFile:510)
      at lm.u(SourceFile:265)
      at net.minecraft.server.MinecraftServer.t(SourceFile:440)
      at net.minecraft.server.MinecraftServer.run(SourceFile:357)
      at lb.run(SourceFile:616)

      – System Details –
      Details:
      Minecraft Version: 1.7.4
      Operating System: Linux (amd64) version 3.2.0-4-amd64
      Java Version: 1.6.0_27, Sun Microsystems Inc.
      Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
      Memory: 69968176 bytes (66 MB) / 477233152 bytes (455 MB) up to 477233152 bytes (455 MB)
      JVM Flags: 2 total; -Xms32M -Xmx512M
      AABB Pool Size: 39997 (2239832 bytes; 2 MB) allocated, 22693 (1270808 bytes; 1 MB) used
      IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
      Profiler Position: N/A (disabled)
      Vec3 Pool Size: 5875 (329000 bytes; 0 MB) allocated, 3653 (204568 bytes; 0 MB) used
      Player Count: 3 / 10; [mp['vaughanyboo'/22930, l='world', x=1256.70, y=64.00, z=-5847.63], mp['vaughanyp'/25957, l='world', x=1256.62, y=64.00, z=-5849.35], mp['Chris_PDB'/29293, l='world', x=1201.99, y=75.00, z=-5812.89]]
      Is Modded: Unknown (can't tell)
      Type: Dedicated Server (map_server.txt)

            Unassigned Unassigned
            vaughany Paul Vaughan
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              Created:
              Updated:
              Resolved: