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FullStack Watchdog project artwork

CurseForge · Minecraft mod

FullStack Watchdog

Make Watchdog crashes show all the code that was running for all threads

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which FullStack Watchdog release should I use?

Updated 1 year ago
Latest stable file FullStack Watchdog v1.1.0 (1.20.2 to 1.20.4 - MC Neoforge)
Game version 1.20.2, 1.20.3, 1.20.4
Loader NeoForge

FullStack Watchdog v1.1.0 (1.20.2 to 1.20.4 - MC Neoforge) targets 1.20.2, 1.20.3, 1.20.4 with NeoForge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.

Where it goes

Is FullStack Watchdog required on the client, server, or both?

The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does FullStack Watchdog v1.1.0 (1.20.2 to 1.20.4 - MC Neoforge) need?

FullStack Watchdog v1.1.0 (1.20.2 to 1.20.4 - MC Neoforge). Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add FullStack Watchdog without breaking your instance.

Built for FullStack Watchdog v1.1.0 (1.20.2 to 1.20.4 - MC Neoforge). Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use FullStack Watchdog v1.1.0 (1.20.2 to 1.20.4 - MC Neoforge). It targets 1.20.2, 1.20.3, 1.20.4 with NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside FullStack Watchdog v1.1.0 (1.20.2 to 1.20.4 - MC Neoforge). It opens that exact file at the source.

About this project

What does FullStack Watchdog add?

This is a tiny server-sided mod that makes it so that the logs show more information when the Watchdog system on the server has killed the server due to being deadlocked or stuck so long. The crash report log will now show all of the code that was running at the time of the deadlocked server. In other words, the full stacktrace of all threads instead of the normally truncated (shortened) version.

 

In theory, this should help with diagnosing what modded code or mixin has caused an "off-thread" to lock up. When a thread locks up, the server thread gets stuck and if it remains stuck for so long, the Watchdog kills it because a tick took too long to complete. It won't help solve all deadlock issues. But it might get you just enough info to track down the cause of a few deadlocks.

Image below is an example of before and after this mod is put on (Gallery tab shows image better): 
Example of improvement

 

Yes you may ship this mod in a modpack. The client can also have this mod on but it won't do anything on client since the Watchdog system is only ran on servers. You can also run servers with this mod only on the server. Clients without this mod can still connect.

NOTE 1: NeoForge 20.4.107 and newer already has this mod merged into it! You do not need this mod in NeoForge for 1.20.4 MC or newer! https://github.com/neoforged/NeoForge/pull/512

NOTE 2: Fabric API 0.104.0+1.21.2 and newer already has this mod merged into it! You do not need this mod in Fabric for 1.21.2 MC or newer! https://github.com/FabricMC/fabric/pull/4052

Project description from CurseForge.

Pick your setup

FullStack Watchdog by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

45 available setups

Showing the newest 12 of 19 game versions. Older files are in the list below.

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

FullStack Watchdog versions and loaders

5 of 5 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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