Whats watchdog?

Time: 2/24/21 6:41 PM
Description: Watching Server

java.lang.Error: ServerHangWatchdog detected that a single server tick took 60.00 seconds (should be max 0.05)
at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:135)
at net.minecraft.world.World.func_72964_e(World.java:310)
at net.minecraft.world.World.func_175726_f(World.java:305)
at net.minecraft.world.World.func_180495_p(World.java:911)
at net.minecraft.world.World.func_72875_a(World.java:2281)
at net.minecraft.entity.Entity.func_180799_ab(Entity.java:1311)
at net.minecraft.entity.Entity.func_70030_z(Entity.java:495)
at com.ferreusveritas.dynamictrees.entities.EntityFallingTree.func_70030_z(EntityFallingTree.java:263)
at net.minecraft.entity.Entity.TickCentral_TrueOnUpdateTick(Entity.java:389)
at com.github.terminatornl.tickcentral.api.TickHub.trueOnUpdate(TickHub.java:56)
at com.github.terminatornl.laggoggles.Main.redirectOnUpdate(Main.java:102)
at net.minecraft.entity.Entity.func_70071_h_(Entity.java)
at net.minecraft.world.World.func_72866_a(World.java:1996)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:832)
at net.minecraft.world.World.func_72870_g(World.java:1958)
at net.minecraft.world.World.func_72939_s(World.java:1762)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Thread.java:748)

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

-- Head --
Thread: Server Watchdog
Stacktrace:
at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:135)
at net.minecraft.world.World.func_72964_e(World.java:310)
at net.minecraft.world.World.func_175726_f(World.java:305)
at net.minecraft.world.World.func_180495_p(World.java:911)
at net.minecraft.world.World.func_72875_a(World.java:2281)
at net.minecraft.entity.Entity.func_180799_ab(Entity.java:1311)
at net.minecraft.entity.Entity.func_70030_z(Entity.java:495)
at com.ferreusveritas.dynamictrees.entities.EntityFallingTree.func_70030_z(EntityFallingTree.java:263)
at net.minecraft.entity.Entity.TickCentral_TrueOnUpdateTick(Entity.java:389)
at com.github.terminatornl.tickcentral.api.TickHub.trueOnUpdate(TickHub.java:56)
at com.github.terminatornl.laggoggles.Main.redirectOnUpdate(Main.java:102)
at net.minecraft.entity.Entity.func_70071_h_(Entity.java)
at net.minecraft.world.World.func_72866_a(World.java:1996)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:832)
at net.minecraft.world.World.func_72870_g(World.java:1958)
at net.minecraft.world.World.func_72939_s(World.java:1762)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)

-- Thread Dump --
Details:
Threads: "Downloader 5" Id=368 TIMED_WAITING on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
...

"Downloader 4" Id=367 TIMED_WAITING on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
...

"Downloader 3" Id=366 TIMED_WAITING on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
...

"Downloader 2" Id=365 TIMED_WAITING on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
...

"Downloader 1" Id=364 TIMED_WAITING on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.SynchronousQueue$TransferStack@53f33c6c
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
...

"pool-4-thread-1" Id=363 TIMED_WAITING on java.util.concurrent.SynchronousQueue$TransferStack@57ccb2ca
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.SynchronousQueue$TransferStack@57ccb2ca
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
...

"Chunk I/O Executor Thread-1" Id=348 WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@12ce3657
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@12ce3657
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

"Netty Epoll Server IO #3" Id=339 RUNNABLE
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:117)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:223)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:247)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at java.lang.Thread.run(Thread.java:748)

"Netty Epoll Server IO #2" Id=338 RUNNABLE
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:117)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:223)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:247)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at java.lang.Thread.run(Thread.java:748)

"Netty Epoll Server IO #1" Id=259 RUNNABLE
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:117)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:223)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:247)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at java.lang.Thread.run(Thread.java:748)

"pool-8-thread-1" Id=255 WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@694cc4bd
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@694cc4bd
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

"File IO Thread" Id=215 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at net.minecraft.world.storage.ThreadedFileIOBase.func_75736_b(SourceFile:44)
at net.minecraft.world.storage.ThreadedFileIOBase.run(SourceFile:30)
at java.lang.Thread.run(Thread.java:748)

"Thread-82" Id=193 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at thaumcraft.common.world.aura.AuraThread.run(AuraThread.java:79)
at java.lang.Thread.run(Thread.java:748)

"pool-7-thread-1" Id=191 WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@239685a4
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@239685a4
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
...

"Server Watchdog" Id=186 RUNNABLE
at sun.management.ThreadImpl.dumpThreads0(Native Method)
at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:454)
at net.minecraft.server.dedicated.ServerHangWatchdog.run(ServerHangWatchdog.java:45)
at java.lang.Thread.run(Thread.java:748)

"World Simulation Thread" Id=147 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at CoroUtil.world.WorldDirector.run(WorldDirector.java:430)
at java.lang.Thread.run(Thread.java:748)

"CQR Dungeon Generator Thread" Id=144 WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@11fe29fe
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@11fe29fe
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at team.cqr.cqrepoured.structuregen.DungeonGeneratorThread.run(DungeonGeneratorThread.java:39)

"Timer-0" Id=143 TIMED_WAITING on java.util.TaskQueue@72e1c918
at java.lang.Object.wait(Native Method)
- waiting on java.util.TaskQueue@72e1c918
at java.util.TimerThread.mainLoop(Timer.java:552)
at java.util.TimerThread.run(Timer.java:505)

"Keep-Alive-SocketCleaner" Id=135 WAITING on sun.net.www.http.KeepAliveStreamCleaner@7d8792d5
at java.lang.Object.wait(Native Method)
- waiting on sun.net.www.http.KeepAliveStreamCleaner@7d8792d5
at sun.net.www.http.KeepAliveStreamCleaner.run(KeepAliveStreamCleaner.java:101)
at java.lang.Thread.run(Thread.java:748)

"ResearchIOThread" Id=131 TIMED_WAITING on java.util.TaskQueue@6a2b9364
at java.lang.Object.wait(Native Method)
- waiting on java.util.TaskQueue@6a2b9364
at java.util.TimerThread.mainLoop(Timer.java:552)
at java.util.TimerThread.run(Timer.java:505)

"Java2D Disposer" Id=128 WAITING on java.lang.ref.ReferenceQueue$Lock@afae606
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.ReferenceQueue$Lock@afae606
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:165)
at sun.java2d.Disposer.run(Disposer.java:148)
at java.lang.Thread.run(Thread.java:748)

"threadDeathWatcher-2-1" Id=124 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at io.netty.util.ThreadDeathWatcher$Watcher.run(ThreadDeathWatcher.java:152)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
at java.lang.Thread.run(Thread.java:748)

"Netty Epoll Server IO #0" Id=54 RUNNABLE
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:117)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:223)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:247)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at java.lang.Thread.run(Thread.java:748)

"Server console handler" Id=30 RUNNABLE (in native)
at java.io.FileInputStream.readBytes(Native Method)
at java.io.FileInputStream.read(FileInputStream.java:255)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
- locked java.io.BufferedInputStream@76af5748
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
- locked java.io.InputStreamReader@377f7272
at java.io.InputStreamReader.read(InputStreamReader.java:184)
...

"DestroyJavaVM" Id=29 RUNNABLE

"Server thread" Id=27 RUNNABLE
at net.minecraft.world.gen.ChunkProviderServer.func_186028_c(ChunkProviderServer.java:89)
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:135)
at net.minecraft.world.World.func_72964_e(World.java:310)
at net.minecraft.world.World.func_175726_f(World.java:305)
at net.minecraft.world.World.func_180495_p(World.java:911)
at net.minecraft.world.World.func_72875_a(World.java:2281)
at net.minecraft.entity.Entity.func_180799_ab(Entity.java:1311)
at net.minecraft.entity.Entity.func_70030_z(Entity.java:495)
...

"Server Infinisleeper" Id=26 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at net.minecraft.server.dedicated.DedicatedServer$1.run(DedicatedServer.java:82)

"Snooper Timer" Id=25 TIMED_WAITING on java.util.TaskQueue@179674a
at java.lang.Object.wait(Native Method)
- waiting on java.util.TaskQueue@179674a
at java.util.TimerThread.mainLoop(Timer.java:552)
at java.util.TimerThread.run(Timer.java:505)

"Thread-1" Id=24 WAITING on java.util.LinkedList@5cee7bb5
at java.lang.Object.wait(Native Method)
- waiting on java.util.LinkedList@5cee7bb5
at java.lang.Object.wait(Object.java:502)
at com.zeitheron.hammercore.lib.zlib.utils.TaskedThread.run(TaskedThread.java:39)

"Signal Dispatcher" Id=4 RUNNABLE

"Finalizer" Id=3 WAITING on java.lang.ref.ReferenceQueue$Lock@50f77277
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.ReferenceQueue$Lock@50f77277
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:165)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:216)

"Reference Handler" Id=2 WAITING on java.lang.ref.Reference$Lock@1c5776f9
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.Reference$Lock@1c5776f9
at java.lang.Object.wait(Object.java:502)
at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)

Stacktrace:
at net.minecraft.server.dedicated.ServerHangWatchdog.run(ServerHangWatchdog.java:62)
at java.lang.Thread.run(Thread.java:748)

-- System Details --
Details:
Minecraft Version: 1.12.2
Operating System: Linux (amd64) version 4.15.0-122-generic
Java Version: 1.8.0_271, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 3905541456 bytes (3724 MB) / 8028946432 bytes (7657 MB) up to 13362528256 bytes (12743 MB)
JVM Flags: 3 total; -Xmx14336M -Xms512M -Xss2M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.5.2854 323 mods loaded, 321 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

Millenaire will always cause these problems with any structure mod - you should talk to them.