Tab crashes due to out-of-memory #4602

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opened 2026-02-28 04:08:56 -05:00 by deekerman · 0 comments

deekerman commented

2026-02-28 04:08:56 -05:00

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Originally created by @AlyoshaVasilieva on GitHub (Jan 13, 2026).

I saw https://github.com/louislam/uptime-kuma/issues/6420 but that specifies Firefox. This happens in Chrome.

🛡️ Security Policy

I have read and agree to Uptime Kuma's Security Policy.

📝 Description

Leaving the Uptime Kuma dashboard open for a long time (I keep my browser open for ~days at a time) ends up crashing due to OOM.

👟 Reproduction steps

Open Uptime Kuma dashboard in a tab
Leave it open forever
It gradually uses more and more memory until it crashes. I've seen it using >3GB of RAM before, still running, in Chrome's task manager.

edit: Since opening this issue (and restarting the tab) 4 hours ago, tab memory usage has climbed from ~180MB to ~550MB.
edit: At the 7 hour mark, it's at ~870MB.

👀 Expected behavior

It shouldn't use more and more memory.

😓 Actual Behavior

It uses more and more memory until crashing.

🐻 Uptime-Kuma Version

2.0.2

💻 Operating System and Arch

Uptime-Kuma host is Debian 13, browser running on Windows 10

🌐 Browser

Chrome 143.0.7499.170 x64

🖥️ Deployment Environment

Runtime Environment:
- Docker: Version 29.1.3 (Build f52814d)
Database:
- whatever the Docker image uses by default, probably SQLite embedded
Database Storage:
- Filesystem:
  - Linux: ext4
- Storage Medium: SSD
Uptime Kuma Setup:
- Number of monitors: 32

📝 Relevant log output

Originally created by @AlyoshaVasilieva on GitHub (Jan 13, 2026). ### 📑 I have found these related issues/pull requests I saw https://github.com/louislam/uptime-kuma/issues/6420 but that specifies Firefox. This happens in Chrome. ### 🛡️ Security Policy - [x] I have read and agree to Uptime Kuma's [Security Policy](https://github.com/louislam/uptime-kuma/security/policy). ### 📝 Description Leaving the Uptime Kuma dashboard open for a long time (I keep my browser open for ~days at a time) ends up crashing due to OOM. <img width="697" height="326" alt="Image" src="https://github.com/user-attachments/assets/7098e734-15fd-4589-bc68-fab82946f99b" /> ### 👟 Reproduction steps 1. Open Uptime Kuma dashboard in a tab 2. Leave it open forever 3. It gradually uses more and more memory until it crashes. I've seen it using >3GB of RAM before, still running, in Chrome's task manager. edit: Since opening this issue (and restarting the tab) 4 hours ago, tab memory usage has climbed from ~180MB to ~550MB. edit: At the 7 hour mark, it's at ~870MB. <img width="678" height="498" alt="Image" src="https://github.com/user-attachments/assets/259c3c4e-e3e0-4364-91e5-c9f8e7acd393" /> ### 👀 Expected behavior It shouldn't use more and more memory. ### 😓 Actual Behavior It uses more and more memory until crashing. ### 🐻 Uptime-Kuma Version 2.0.2 ### 💻 Operating System and Arch Uptime-Kuma host is Debian 13, browser running on Windows 10 ### 🌐 Browser Chrome 143.0.7499.170 x64 ### 🖥️ Deployment Environment - **Runtime Environment**: - Docker: Version `29.1.3` (Build `f52814d`) - **Database**: - whatever the Docker image uses by default, probably SQLite embedded - **Database Storage**: - **Filesystem**: - Linux: ext4 - **Storage Medium**: SSD - **Uptime Kuma Setup**: - Number of monitors: `32` ### 📝 Relevant log output ```bash session ```