Nuxt•2w ago

Module playground not starting (too many open files)

I am currently writing a Sanity integration for Nuxt.js 3 based on @nuxtjs/sanity by Daniel Roe. Sadly, the dev server (playground) stopped working after updating to the latest Nuxt version. The server crashes with error message EMFILE: too many open files, watch. I tried adding the Sanity Studio directory (cms/**) in Vite's server config, but this couldn't resolve the issue. The only solution I've found is moving the Sanity Studio out of the playground directory. Is there any other way I can ignore the directory from being watched by Vite? Thanks in advance!

8 Replies

kapa.ai•2w ago

Hi @Justix. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Based on the knowledge sources provided, I can offer some insights and potential solutions to your issue with the "too many open files" error in your Nuxt.js 3 project. 1. Watcher Configuration: Nuxt provides options to configure the file watcher. You can try adjusting the watcher settings in your nuxt.config.ts file. The experimental.watcher option allows you to choose between different watcher implementations:

export default defineNuxtConfig({
  experimental: {
    watcher: 'chokidar-granular' // 'chokidar' or 'parcel' are also options
  }
})

export default defineNuxtConfig({
  experimental: {
    watcher: 'chokidar-granular' // 'chokidar' or 'parcel' are also options
  }
})

Using 'chokidar-granular' (the default) or 'parcel' might help reduce the number of watched files Experimental Features (https://nuxt.com/docs/guide/going-further/experimental-features#watcher). 2. Ignore Patterns: You can use the ignore option in your Nuxt configuration to exclude specific directories or file patterns from being watched:

export default defineNuxtConfig({
  ignore: [
    "cms/**",  // Ignore the Sanity Studio directory
    // ... other patterns
  ]
})

export default defineNuxtConfig({
  ignore: [
    "cms/**",  // Ignore the Sanity Studio directory
    // ... other patterns
  ]
})

This approach might help reduce the number of watched files Nuxt Configuration - ignore (https://nuxt.com/docs/api/nuxt-config#ignore). 3. Content Ignores: If you're using Nuxt Content, you can also specify ignore patterns in the content configuration:

export default defineNuxtConfig({
  content: {
    ignores: [
      '/cms/',  // Ignore the Sanity Studio directory
    ]
  }
})

export default defineNuxtConfig({
  content: {
    ignores: [
      '/cms/',  // Ignore the Sanity Studio directory
    ]
  }
})

This might be helpful if the Sanity Studio files are being picked up by Nuxt Content Get-started > ignores (https://content.nuxt.com/get-started/configuration/#ignores). 4. Webpack Watch Options: If you're using Webpack, you can try adjusting the webpack.watchOptions in your Nuxt configuration:

export default defineNuxtConfig({
  watchers: {
    webpack: {
      aggregateTimeout: 300,
      poll: 1000
    }
  }
})

export default defineNuxtConfig({
  watchers: {
    webpack: {
      aggregateTimeout: 300,
      poll: 1000
    }
  }
})

This might help reduce the frequency of file system polling Nuxt Configuration > watchers (https://nuxt.com/docs/api/nuxt-config#watchers). 5. Antivirus Considerations: While not directly related to Nuxt configuration, it's worth noting that antivirus software can sometimes interfere with file watching and cause similar issues. You might want to try temporarily disabling your antivirus or adding exceptions for your project directory to see if it resolves the issue Github Issue Comment (https://github.com/nuxt/nuxt/issues/12376). If none of these solutions work, you might need to consider alternative approaches or seek further assistance from the Nuxt community or maintainers. The current knowledge sources don't provide a definitive solution for your specific case with the Sanity Studio integration. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@388689607488700418> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

JustixOP•2w ago

Beautiful, the ignore property worked for me. Though, I am still having an issue with imports from #imports like useState and reactive in server-side plugins. @kapa.ai

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I'm glad to hear that the ignore property worked for you. Now, let's address your new issue with imports from #imports like useState and reactive in server-side plugins. The problem you're experiencing is related to the separation between client-side and server-side code in Nuxt 3. Vue composables like useState and reactive are not meant to be used directly in server-side code, including server-side plugins. Here are a few key points to understand and potential solutions: 1. Server-side limitations: As mentioned in the Nuxt documentation (https://nuxt.com/docs/guide/concepts/auto-imports#vue-and-nuxt-composables), many Vue and Nuxt composables rely on being called in the right context. They cannot be used outside a Nuxt plugin, Nuxt route middleware, or Vue setup function, and must be used synchronously. 2. Alternative for server-side state: Instead of using useState in server-side plugins, you can use Nitro's built-in state management. Here's an example of how you can create and use server-side state:

   // In your server-side plugin or middleware
   const storage = useStorage()
   
   // Set a value
   await storage.setItem('key', 'value')
   
   // Get a value
   const value = await storage.getItem('key')

   // In your server-side plugin or middleware
   const storage = useStorage()
   
   // Set a value
   await storage.setItem('key', 'value')
   
   // Get a value
   const value = await storage.getItem('key')

This approach is recommended for server-side state management in Nuxt 3 Nuxt Documentation (https://nuxt.com/docs/guide/directory-structure/server#server-routes). 3. Using #imports in server code: If you absolutely need to use imports from #imports in server-side code, you can try adding them to the nitro.imports configuration in your nuxt.config.ts:

   export default defineNuxtConfig({
     nitro: {
       imports: {
         presets: [
           {
             from: '#imports',
             imports: ['useState', 'reactive']
           }
         ]
       }
     }
   })

   export default defineNuxtConfig({
     nitro: {
       imports: {
         presets: [
           {
             from: '#imports',
             imports: ['useState', 'reactive']
           }
         ]
       }
     }
   })

However, be cautious with this approach, as it might not work as expected for all composables Github Issue Comment (https://github.com/nuxt/nuxt/issues/29302#issuecomment-1814056401). 4. Server-specific imports: For server-side code, you might want to use server-specific imports instead. Nuxt provides a way to add server imports using the addServerImports helper:

   addServerImports([
     {
       name: 'functionName',
       from: resolve('./runtime/utils/function-name'),
     },
   ])

   addServerImports([
     {
       name: 'functionName',
       from: resolve('./runtime/utils/function-name'),
     },
   ])

This method allows you to import functions specifically for server-side use Github Issue Comment (https://github.com/nuxt/nuxt/issues/29302#issuecomment-1814056401). Remember, when working with server-side code in Nuxt, it's important to use appropriate server-side APIs and avoid using client-side Vue composables. If you need to share state between client and server, consider using other Nuxt features like useFetch or API routes to communicate between the two environments. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@388689607488700418> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

JustixOP•2w ago

@nuxtjs/sanity used useState in a server-side plugin though and it worked fine. Any chance of using it without having to change the nuxt configuration? @kapa.ai

kapa.ai•2w ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- I apologize, but I don't have enough information in the provided knowledge sources to confidently answer your question about @nuxtjs/sanity using useState in a server-side plugin. The knowledge sources don't contain specific information about this module or its implementation details. However, I can provide some general information about useState in Nuxt 3 that might be relevant: 1. useState in Nuxt 3 is designed to be SSR-friendly and can be used to create reactive and shared state across components Nuxt State Management (https://nuxt.com/docs/getting-started/state-management). 2. useState is typically used within components or composables, not directly in server-side plugins useState API (https://nuxt.com/docs/api/composables/use-state). 3. Server-side plugins in Nuxt 3 have some limitations on what can be imported and used Nuxt Plugins (https://nuxt.com/docs/guide/directory-structure/plugins#using-composables). Without seeing the specific implementation of @nuxtjs/sanity, it's difficult to say why it might work differently. It's possible that the module is using some internal Nuxt APIs or has a specific setup that allows it to use useState in a server-side context. If you want to use useState in a server-side plugin without changing the Nuxt configuration, you might need to investigate how @nuxtjs/sanity achieves this or consider reaching out to the module's maintainers for more specific guidance. Remember, the behavior of third-party modules can sometimes differ from standard Nuxt practices, so it's always a good idea to refer to the specific module's documentation or source code for the most accurate information. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2w ago

<@388689607488700418> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

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Module playground not starting (too many open files)