AMP often crashes randomly

OS Name/Version: Linux Ubuntu 22.04.2

Product Name/Version: AMP

Problem Description:

I have an active Minecraft server and my AMP often crashes at random intervals, sometimes there are hours between sometimes only a few minutes, and I can’t find a solution I found this error in the log but can’t solve it.

I replaced the Links with url because i am not allowed to post so many Links

I hope you can help me

[08:38:04] [Logger Warning] : The application stopped unexpectedly. Exit code 137
[08:38:04] [Logger Info] : Java located at /usr/lib/jvm/java-17-openjdk-amd64/bin/java
[08:38:05] [Logger Info] : Using ‘Paper_Spigot’ compatibility mode.
Starting org.bukkit.craftbukkit.Main
*** Warning, you’ve not updated in a while! ***
*** Please download a new build as per instructions from Paper Downloads | PaperMC ***
System Info: Java 17 (OpenJDK 64-Bit Server VM 17.0.7+7-Ubuntu-0ubuntu122.04.2) Host: Linux 5.15.0-75-generic (amd64)
Loading libraries, please wait…
[08:38:06] [Logger Activity] : Authentication attempt for user admin from
[08:38:07] [Core Activity] : Authentication success
[08:38:10] [Logger Info] : Stop requested: SIGUSR1 Recieved
[08:38:10] [Core Notice] : AMP shutdown requested.
[08:38:10] [Core Notice] : Stopping Application…
[08:38:10] [Minecraft Info] : Application stop requested
[08:38:11] [INFO]: Environment: authHost=‘url’, accountsHost=‘url’, sessionHost=‘url’, servicesHost=‘url’, name=‘PROD’
[08:38:12] [WARN]: Found loot table element validation problem in {loot_tables:minecraft:entities/shulker}.pools[1].entries[0]: Unknown loot table called minecraft:entities/reference/mmh/shulker
[08:38:12] [INFO]: Loaded 7 recipes
[08:38:13] [INFO]: Starting minecraft server version 1.20
[08:38:13] [INFO]: Loading properties
[08:38:13] [INFO]: This server is running Paper version git-Paper-17 (MC: 1.20) (Implementing API version 1.20-R0.1-SNAPSHOT) (Git: c287e92)
[08:38:13] [INFO]: Server Ping Player Sample Count: 12
[08:38:13] [INFO]: Using 4 threads for Netty based IO
[08:38:13] [WARN]: [!]: The timings profiler has been enabled but has been scheduled for removal from Paper in the future.
We recommend installing the spark profiler as a replacement: url
For more information please visit: url
[08:38:13] [INFO]: [ChunkTaskScheduler]: Chunk system is using 1 I/O threads, 1 worker threads, and gen parallelism of 1 threads
[08:38:13] [INFO]: Default game type: SURVIVAL
[08:38:13] [INFO]: Generating keypair
[08:38:13] [INFO]: Starting Minecraft server on
[08:38:13] [INFO]: Using epoll channel type
[08:38:13] [INFO]: Paper: Using libdeflate (Linux x86_64) compression from Velocity.
[08:38:13] [INFO]: Paper: Using OpenSSL 3.0.x (Linux x86_64) cipher from Velocity.
[08:38:14] [ERROR]: [ModernPluginLoadingStrategy]: Could not load ‘plugins/PlayTime-3.6.jar’ in ‘plugins’
org.bukkit.plugin.UnknownDependencyException: Unknown/missing dependency plugins: [PlaceholderAPI]. Please download and install these plugins to run ‘PlayTime’.
at io.papermc.paper.plugin.entrypoint.strategy.modern.ModernPluginLoadingStrategy.loadProviders( ~[paper-1.20.jar:git-Paper-17]
at ~[paper-1.20.jar:git-Paper-17]
at io.papermc.paper.plugin.entrypoint.LaunchEntryPointHandler.enter( ~[paper-1.20.jar:git-Paper-17]
at org.bukkit.craftbukkit.v1_20_R1.CraftServer.loadPlugins( ~[paper-1.20.jar:git-Paper-17]
at net.minecraft.server.dedicated.DedicatedServer.initServer( ~[paper-1.20.jar:git-Paper-17]
at net.minecraft.server.MinecraftServer.runServer( ~[paper-1.20.jar:git-Paper-17]
at net.minecraft.server.MinecraftServer.lambda$spin$0( ~[paper-1.20.jar:git-Paper-17]
at ~[?:?]
[08:38:14] [INFO]: [LuckPerms]: Loading server plugin LuckPerms v5.4.84
[08:38:14] [INFO]: [Vault]: Loading server plugin Vault v1.7.3-b131
[08:38:14] [INFO]: [WorldEdit]: Loading server plugin WorldEdit v7.2.15-SNAPSHOT+6460-c518821
[08:38:15] [INFO]: Got request to register class com.sk89q.worldedit.bukkit.BukkitServerInterface with WorldEdit [com.sk89q.worldedit.extension.platform.PlatformManager@55d03144]
[08:38:15] [INFO]: [WorldGuard]: Loading server plugin WorldGuard v7.0.9-SNAPSHOT+2241-c0cbe27
[08:38:15] [INFO]: [floodgate]: Loading server plugin floodgate v2.2.2-SNAPSHOT (b59-2278589)
[08:38:15] [Minecraft Info] : Application stop requested
[08:38:15] [Core Notice] : Stopping Web Server…
[08:38:15] [Webserver Info] : Web server shutdown.
[08:38:15] [Core Notice] : Goodbye!

Steps to reproduce:

  1. It is a Paper Server with some Plugins
  2. Sometimes when playing the server crashes

Actions taken to resolve so far:

  • uninstalled unused Plugins
  • allocated more memory
  • updated Paper and AMP

[08:38:10] [Logger Info] : Stop requested: SIGUSR1 Recieved

It’s not crashing. It’s receiving a deliberate, intentional request to shut down cleanly.

Thanks, that is good to know,
but i don´t have any idea why. This is my first server on Linux and i don’t know how to fix it

Actually something is going wrong, but what exactly is impossible to say. Have you checked the Minecraft logs to see if there’s a crash report in them?

I checked but the log from that point in time is 0 bytes in size, so it’s empty. But I looked again in the Spark plugin and it shows me 7.6GB of physical memory but only 1.7GB of memory for the process. I’m not sure if that helps, but I can’t find anything else.

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