How do I install FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. In MC Java Mods, or directly above on this page.

What Minecraft version does FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod work with?

The listing gives Minecraft 1.21.1, 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by 9minecraftmods

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FullStack Watchdog Mod is a server-side utility mod that enhances the logging information when the Watchdog system on the server kills the server due to being deadlocked or stuck for too long.

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 1

Features:

When the server crashes due to a deadlock, the mod provides a full stack trace of all threads running at the time of the crash, instead of the normally truncated version.
This additional information helps diagnose which modded code or mixin might have caused the deadlock.
The mod only affects the server and does not have any functionality on the client side.

Screenshots:

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 2

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 3

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 4

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 5

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 6

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 7

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 8

FullStack Watchdog Mod (1.21.1, 1.20.1) – A Tiny Server-sided Mod — Minecraft Java mod, screenshot 9

FullStack Watchdog Mod Download Links

For Minecraft 1.21.1, 1.21

Fabric Version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.6

NeoForge Version: Download from Server 1 – Download from Server 2

Fabric Version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.4, 1.20.3

NeoForge Version: Download from Server 1 – Download from Server 2

Fabric Version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.2

NeoForge Version: Download from Server 1 – Download from Server 2

Fabric Version: Download from Server 1 – Download from Server 2

For All Versions from Minecraft 1.17.1 to Minecraft 1.20.1

Forge Version: Download from Server 1 – Download from Server 2

Fabric Version: Download from Server 1 – Download from Server 2

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: In MC Java Mods, or directly above on this page.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Downloads as 196266.mcaddon
Download size: 14 KB
Download link checked 15 Jul 2026 — working
Mirrored on our own servers — the download does not depend on the original host

These come from our own check of the pack file, not from the source page.

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