N
Nuxt•2mo ago
Atlasi

Find Memory Leak

Hi, I’ve attached a screenshot showing the memory usage on the server. It appears there is a minor memory leak, as the chart slowly increases over time and then drops after each deployment. I attempted to diagnose the issue by comparing snapshots using the Node.js DevTools, but I wasn’t able to identify anything specific to apply a fix. Could anyone provide guidance on how to resolve this?
No description
2 Replies
kapa.ai
kapa.ai•2mo ago
Hi @Atlasi. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Memory leaks in Nuxt applications can be challenging to diagnose. Based on the knowledge sources, there are several potential causes and approaches to debugging memory leaks in your Nuxt application. Possible Causes of Memory Leaks Memory leaks in Nuxt applications can occur due to: 1. Server-side rendering issues: When using components that aren't properly designed for SSR, they might cause memory leaks on the server side. 2. Plugin initialization: Incorrectly implemented plugins that register multiple times without cleanup logic can cause memory leaks, as mentioned in the Plugins and Middleware documentation. 3. Client-only components not properly isolated: Some components that use browser-specific APIs might need to be wrapped in <client-only> tags to prevent server-side execution issues, as shown in a case with the Leaflet component. Debugging Approaches Here are some approaches to identify and fix memory leaks: 1. Use Node Inspector for Debugging You can use Node inspector to debug server-side issues: 
nuxi dev --inspect
nuxi dev --inspect
This will start Nuxt in development mode with the debugger active, allowing you to inspect memory usage patterns. As mentioned in the Debugging documentation, this can help identify issues. 2. Configure IDE for Debugging Set up your IDE for debugging both client and server sides. For VS Code, you can use a configuration like: 
{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "chrome",
      "request": "launch",
      "name": "client: chrome",
      "url": "<http://localhost:3000",>
      "webRoot": "${workspaceFolder}"
    },
    {
      "type": "node",
      "request": "launch",
      "name": "server: nuxt",
      "outputCapture": "std",
      "program": "${workspaceFolder}/node_modules/nuxt/bin/nuxt.mjs",
      "args": [
        "dev"
      ],
    }
  ],
  "compounds": [
    {
      "name": "fullstack: nuxt",
      "configurations": [
        "server: nuxt",
        "client: chrome"
      ]
    }
  ]
}
{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "chrome",
      "request": "launch",
      "name": "client: chrome",
      "url": "<http://localhost:3000",>
      "webRoot": "${workspaceFolder}"
    },
    {
      "type": "node",
      "request": "launch",
      "name": "server: nuxt",
      "outputCapture": "std",
      "program": "${workspaceFolder}/node_modules/nuxt/bin/nuxt.mjs",
      "args": [
        "dev"
      ],
    }
  ],
  "compounds": [
    {
      "name": "fullstack: nuxt",
      "configurations": [
        "server: nuxt",
        "client: chrome"
      ]
    }
  ]
}
This setup from the Debugging documentation can help you track down memory issues. 3. Check for Common Issues Based on reported issues: - Middleware execution: Check if your auth middleware is running unnecessarily on the server side. Try using conditions like if (import.meta.server) { return; } to prevent server-side execution when not needed. - External libraries: Some libraries might cause memory issues, as seen in cases with @nuxt/image and Sharp library. - Node version compatibility: Some users reported memory leaks specific to Node 22, with the recommendation to downgrade to Node 20 as a workaround, as mentioned in a GitHub issue. 4. Isolate Browser-Specific Components If you're using components that interact with browser APIs, wrap them in <client-only> tags: 
<client-only>
  <YourComponent />
</client-only>
<client-only>
  <YourComponent />
</client-only>
This approach solved memory issues for some users working with map libraries. Additional Resources For more in-depth analysis, consider reading these articles mentioned in the knowledge sources: - "Solving Server-Side Memory Leaks on Nuxt.js" - "Memory Leak in SSR Nuxt.js If Everything Else Fails" - "Revealing Memory Leaks in Frontend Applications Nuxt.js" These should provide more specific techniques for identifying and resolving memory leaks in Nuxt applications. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai•2mo ago
<@1128316180659196014> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

Did you find this page helpful?