Server suddenly crashed

My server suddenly crashed with no special things did… There are no addons in the server and I have even tried a different machine to launch the server, yet still the “can’t keep up…” thing. Here is the crash report. i would be grateful if anyone help…

---- Minecraft Crash Report ----
// You’re mean.

Time: 5/21/20 4:51 PM
Description: Watching Server

java.lang.Error
at bjw.a(SourceFile:180)
at bjz.a(SourceFile:108)
at bjw.d(SourceFile:175)
at bjw.d_(SourceFile:381)
at bup.a(SourceFile:50)
at bph.b(SourceFile:560)
at byj.b(SourceFile:267)
at xd.a(SourceFile:485)
at xb.a(SourceFile:410)
at xb$$Lambda$2549/1755737721.accept(Unknown Source)
at it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap$1.forEach(Long2ObjectLinkedOpenHashMap.java:1661)
at com.google.common.collect.Iterables$UnmodifiableIterable.forEach(Iterables.java:105)
at xb.o(SourceFile:371)
at xb.a(SourceFile:340)
at xd.a(SourceFile:324)
at net.minecraft.server.MinecraftServer.b(SourceFile:854)
at wd.b(SourceFile:347)
at net.minecraft.server.MinecraftServer.a(SourceFile:793)
at net.minecraft.server.MinecraftServer.run(SourceFile:655)
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 bjw.a(SourceFile:180)
at bjz.a(SourceFile:108)
at bjw.d(SourceFile:175)
at bjw.d_(SourceFile:381)
at bup.a(SourceFile:50)
at bph.b(SourceFile:560)
at byj.b(SourceFile:267)
at xd.a(SourceFile:485)
at xb.a(SourceFile:410)
at xb$$Lambda$2549/1755737721.accept(Unknown Source)
at it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap$1.forEach(Long2ObjectLinkedOpenHashMap.java:1661)
at com.google.common.collect.Iterables$UnmodifiableIterable.forEach(Iterables.java:105)
at xb.o(SourceFile:371)
at xb.a(SourceFile:340)
at xd.a(SourceFile:324)
at net.minecraft.server.MinecraftServer.b(SourceFile:854)
at wd.b(SourceFile:347)
at net.minecraft.server.MinecraftServer.a(SourceFile:793)

– Thread Dump –
Details:
Threads: “Server-Worker-13” Id=58 WAITING on java.util.concurrent.ForkJoinPool@fd3bc57
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.ForkJoinPool@fd3bc57
at java.util.concurrent.ForkJoinPool.awaitWork(ForkJoinPool.java:1824)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1693)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

“Server-Worker-11” Id=56 WAITING on java.util.concurrent.ForkJoinPool@fd3bc57
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.ForkJoinPool@fd3bc57
at java.util.concurrent.ForkJoinPool.awaitWork(ForkJoinPool.java:1824)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1693)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

“Server-Worker-12” Id=57 WAITING on java.util.concurrent.ForkJoinPool@fd3bc57
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.ForkJoinPool@fd3bc57
at java.util.concurrent.ForkJoinPool.awaitWork(ForkJoinPool.java:1824)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1693)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

“Server-Worker-10” Id=55 WAITING on java.util.concurrent.ForkJoinPool@fd3bc57
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.ForkJoinPool@fd3bc57
at java.util.concurrent.ForkJoinPool.awaitWork(ForkJoinPool.java:1824)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1693)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

“Server-Worker-9” Id=54 WAITING on java.util.concurrent.ForkJoinPool@fd3bc57
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.ForkJoinPool@fd3bc57
at java.util.concurrent.ForkJoinPool.awaitWork(ForkJoinPool.java:1824)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1693)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

“Server-Worker-8” Id=53 WAITING on java.util.concurrent.ForkJoinPool@fd3bc57
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.ForkJoinPool@fd3bc57
at java.util.concurrent.ForkJoinPool.awaitWork(ForkJoinPool.java:1824)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1693)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

“Netty Epoll Server IO #15” Id=49 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #14” Id=48 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #13” Id=47 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #12” Id=46 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #11” Id=45 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #10” Id=44 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #9” Id=43 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #8” Id=42 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #7” Id=41 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #6” Id=40 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #5” Id=39 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #4” Id=38 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Server Watchdog” Id=37 RUNNABLE
at sun.management.ThreadImpl.dumpThreads0(Native Method)
at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:454)
at wg.run(SourceFile:45)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #3” Id=36 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #2” Id=35 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“poi IO worker” Id=34 WAITING on java.lang.String@11443dd
at sun.misc.Unsafe.park(Native Method)
- waiting on java.lang.String@11443dd
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at caz.c(SourceFile:124)
at caz.d(SourceFile:134)
at caz$$Lambda$2125/1418307166.run(Unknown Source)
at java.lang.Thread.run(Thread.java:748)

“chunk IO worker” Id=33 WAITING on java.lang.String@11443dd
at sun.misc.Unsafe.park(Native Method)
- waiting on java.lang.String@11443dd
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at caz.c(SourceFile:124)
at caz.d(SourceFile:134)
at caz$$Lambda$2125/1418307166.run(Unknown Source)
at java.lang.Thread.run(Thread.java:748)

“poi IO worker” Id=32 WAITING on java.lang.String@11443dd
at sun.misc.Unsafe.park(Native Method)
- waiting on java.lang.String@11443dd
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at caz.c(SourceFile:124)
at caz.d(SourceFile:134)
at caz$$Lambda$2125/1418307166.run(Unknown Source)
at java.lang.Thread.run(Thread.java:748)

“chunk IO worker” Id=31 WAITING on java.lang.String@11443dd
at sun.misc.Unsafe.park(Native Method)
- waiting on java.lang.String@11443dd
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at caz.c(SourceFile:124)
at caz.d(SourceFile:134)
at caz$$Lambda$2125/1418307166.run(Unknown Source)
at java.lang.Thread.run(Thread.java:748)

“poi IO worker” Id=30 WAITING on java.lang.String@11443dd
at sun.misc.Unsafe.park(Native Method)
- waiting on java.lang.String@11443dd
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at caz.c(SourceFile:124)
at caz.d(SourceFile:134)
at caz$$Lambda$2125/1418307166.run(Unknown Source)
at java.lang.Thread.run(Thread.java:748)

“chunk IO worker” Id=29 WAITING on java.lang.String@11443dd
at sun.misc.Unsafe.park(Native Method)
- waiting on java.lang.String@11443dd
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at caz.c(SourceFile:124)
at caz.d(SourceFile:134)
at caz$$Lambda$2125/1418307166.run(Unknown Source)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #1” Id=28 RUNNABLE
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“Netty Epoll Server IO #0” Id=27 RUNNABLE (in native)
at io.netty.channel.epoll.Native.epollWait0(Native Method)
at io.netty.channel.epoll.Native.epollWait(Native.java:114)
at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
at java.lang.Thread.run(Thread.java:748)

“ObjectCleanerThread” Id=26 TIMED_WAITING on java.lang.ref.ReferenceQueue$Lock@52bd727
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.ReferenceQueue$Lock@52bd727
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
at io.netty.util.internal.ObjectCleaner$1.run(ObjectCleaner.java:54)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)

“Server console handler” Id=25 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@402949e6
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@528a64b0
at java.io.InputStreamReader.read(InputStreamReader.java:184)

“DestroyJavaVM” Id=24 RUNNABLE

“Server thread” Id=21 RUNNABLE
at bjw.a(SourceFile:180)
at bjz.a(SourceFile:108)
at bjw.d(SourceFile:175)
at bjw.d_(SourceFile:381)
at bup.a(SourceFile:50)
at bph.b(SourceFile:560)
at byj.b(SourceFile:267)
at xd.a(SourceFile:485)

“Server Infinisleeper” Id=22 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at wd$1.run(SourceFile:94)

“Snooper Timer” Id=20 WAITING on java.util.TaskQueue@71a3cf97
at java.lang.Object.wait(Native Method)
- waiting on java.util.TaskQueue@71a3cf97
at java.lang.Object.wait(Object.java:502)
at java.util.TimerThread.mainLoop(Timer.java:526)
at java.util.TimerThread.run(Timer.java:505)

“Server-Worker-3” Id=15 TIMED_WAITING on java.util.concurrent.ForkJoinPool@fd3bc57
at sun.misc.Unsafe.park(Native Method)
- waiting on java.util.concurrent.ForkJoinPool@fd3bc57
at java.util.concurrent.ForkJoinPool.awaitWork(ForkJoinPool.java:1824)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1693)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

“Signal Dispatcher” Id=4 RUNNABLE

“Finalizer” Id=3 WAITING on java.lang.ref.ReferenceQueue$Lock@2aeabc6b
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.ReferenceQueue$Lock@2aeabc6b
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$Lock@2006b6a9
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.Reference$Lock@2006b6a9
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 wg.run(SourceFile:61)
at java.lang.Thread.run(Thread.java:748)

– System Details –
Details:
Minecraft Version: 1.15.2
Minecraft Version ID: 1.15.2
Operating System: Linux (amd64) version 4.9.0-11-amd64
Java Version: 1.8.0_252, Oracle Corporation
Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 6713034528 bytes (6402 MB) / 8513912832 bytes (8119 MB) up to 8513912832 bytes (8119 MB)
CPUs: 8
JVM Flags: 2 total; -Xmx8192M -Xms8192M
Player Count: 1 / 50; [xe[‘tiomCMT’/398, l=‘world’, x=11.34, y=65.00, z=238.53]]
Data Packs: vanilla
Is Modded: Unknown (can’t tell)
Type: Dedicated Server (map_server.txt)

Your server is probably starved for resources from overallocation.

JVM Flags: 2 total; -Xmx8192M -Xms8192M

Minecraft server requires 8192MB memory

Memory: 6713034528 bytes (6402 MB) / 8513912832 bytes (8119 MB)

Memory in system is reported here? This means that you’re likely not having enough for the operating system to operate effectively. The memory usage is probably 6402/8119 because of garbage collection, but the operation of GC and other things are maybe swapping?

At any rate, swapping would explain the “cant keep up”

tl;dr lower the amount of ram Java takes so there’s left over fro the rest of the system.