N
Nuxt•2w ago
overthinkerrrr

Error: EBUSY: resource busy or locked, access '\\.\pipe\nitro\worker-18784-12.sock' | Nuxt

I'm experiencing a 503 error when multiple components use useFetch to fetch data simultaneously during page load. This happens even with only a few components, so it shouldn't be a performance issue on my end. After a 503 error, the requests automatically retry fetching. I'm looking for insights into what's causing this and how to resolve it. Currently, I'm adding random delays to the fetch requests to stagger them and avoid simultaneous fetching, but I would like to know if there's a better solution. Any suggestions would be greatly appreciated. Thank you! fyi the code i am using 
const getReviews = async () => {
  const response = await useFetch(`/api/item/${props.item.id}/reviews`, {
    headers: useRequestHeaders(['cookie'])
  })
  ...
}

onMounted(async () => {
  await nextTick()
  await getReviews()
})
const getReviews = async () => {
  const response = await useFetch(`/api/item/${props.item.id}/reviews`, {
    headers: useRequestHeaders(['cookie'])
  })
  ...
}

onMounted(async () => {
  await nextTick()
  await getReviews()
})
No description
7 Replies
kapa.ai
kapa.ai•2w ago
Hi @overthinkerrrr. 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 and your question, it appears that you're encountering an issue with multiple useFetch calls in Nuxt 3. This problem is likely related to how useFetch is being used in your components. Let's address this issue and provide some suggestions for improvement. The error you're experiencing (EBUSY: resource busy or locked) seems to be a side effect of multiple simultaneous useFetch calls, rather than a direct cause of the 503 errors. The 503 errors are more likely due to how the requests are being handled on the server side. Here are some insights and suggestions to resolve your issue: 1. Avoid wrapping useFetch in a function: According to the Stack Overflow post, wrapping useFetch in a function can lead to bugs that affect the performance of the app. In your code, you're wrapping useFetch inside the getReviews function, which may be contributing to the problem. 2. Use useFetch directly in the setup function: As mentioned in the Nuxt documentation, useFetch should be used directly in the component's setup function, plugin, or route middleware. Here's how you could refactor your code: 
   <script setup>
   const props = defineProps(['item'])
   
   const { data: reviews } = await useFetch(`/api/item/${props.item.id}/reviews`, {
     headers: useRequestHeaders(['cookie'])
   })
   </script>
   
   <script setup>
   const props = defineProps(['item'])
   
   const { data: reviews } = await useFetch(`/api/item/${props.item.id}/reviews`, {
     headers: useRequestHeaders(['cookie'])
   })
   </script>
3. Consider using lazy option: If you want to defer the fetching until after the component is mounted, you can use the lazy option with useFetch: 
   <script setup>
   const props = defineProps(['item'])
   
   const { data: reviews, refresh } = useFetch(`/api/item/${props.item.id}/reviews`, {
     headers: useRequestHeaders(['cookie']),
     lazy: true
   })
onMounted(() => {
     refresh()
   })
   </script>
   
   <script setup>
   const props = defineProps(['item'])
   
   const { data: reviews, refresh } = useFetch(`/api/item/${props.item.id}/reviews`, {
     headers: useRequestHeaders(['cookie']),
     lazy: true
   })
onMounted(() => {
     refresh()
   })
   </script>
4. Use Promise.all for multiple fetches: If you need to make multiple fetch requests, consider using Promise.all to handle them concurrently, as shown in this Stack Overflow post: 
   Promise.all([fetchData1(), fetchData2()])
     .then(([data1, data2]) => {
       // Handle the results
     })
     .catch((error) => {
       console.error(error)
     })
   
   Promise.all([fetchData1(), fetchData2()])
     .then(([data1, data2]) => {
       // Handle the results
     })
     .catch((error) => {
       console.error(error)
     })
5. Avoid using useFetch in lifecycle hooks: As mentioned in the Nuxt documentation, useFetch should not be used in lifecycle hooks like onMounted. Instead, use it directly in the setup function or consider using refresh() if you need to refetch data. By implementing these changes, you should be able to resolve the 503 errors and improve the overall performance of your Nuxt application. Remember that useFetch is designed to handle data fetching efficiently in Nuxt, ensuring that data is fetched only once during server-side rendering and properly transferred to the client. If you continue to experience issues after implementing these suggestions, you may want to investigate your server-side setup to ensure it can handle multiple concurrent requests efficiently. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai•2w ago
<@308122633927393280> Kapa.ai is still learning and improving, please let me know how I did by reacting below.
overthinkerrrr
overthinkerrrrOP•2w ago
@kapa.ai i use useFetch directly in the setup function now but still got 503 error sometimes
kapa.ai
kapa.ai•2w ago
Let me check the knowledge base for you again. One moment! :books: ---------------------- I understand you're still experiencing 503 errors even after using useFetch directly in the setup function. This persistent issue suggests that there might be other factors at play. Let's explore some potential causes and solutions based on the information available in our knowledge sources. 1. Caching issues: According to a Stack Overflow post, there was a caching-related bug in Nuxt 3.8 that could cause issues with useFetch. This bug was fixed in Nuxt 3.8.1. Make sure you're using the latest version of Nuxt by updating your dependencies. 2. Multiple simultaneous requests: If you have multiple components making useFetch calls simultaneously, it could potentially overwhelm your server or API endpoint. Consider implementing a strategy to manage these requests: - Use Promise.all to handle multiple fetches concurrently, as mentioned in a Stack Overflow post: 
     Promise.all([fetchData1(), fetchData2()])
       .then(([data1, data2]) => {
         // Handle the results
       })
       .catch((error) => {
         console.error(error)
       })
     
     Promise.all([fetchData1(), fetchData2()])
       .then(([data1, data2]) => {
         // Handle the results
       })
       .catch((error) => {
         console.error(error)
       })
3. Server-side limitations: The 503 error suggests that your server might be temporarily unavailable or overloaded. Investigate your server-side setup to ensure it can handle multiple concurrent requests efficiently. 4. Use lazy option: If the 503 errors occur during initial page load, you might want to consider using the lazy option with useFetch to defer the fetching: 
   const { data, error, refresh } = useFetch('/api/endpoint', {
     lazy: true
   })

   onMounted(() => {
     refresh()
   })
   
   const { data, error, refresh } = useFetch('/api/endpoint', {
     lazy: true
   })

   onMounted(() => {
     refresh()
   })
5. Implement error handling and retries: Add proper error handling to your useFetch calls and implement a retry mechanism for failed requests. This can help mitigate temporary server issues: 
   const { data, error, refresh } = useFetch('/api/endpoint', {
     onResponseError({ request, response, options }) {
       // Handle 503 errors
       if (response.status === 503) {
         // Implement retry logic here
         console.error('Server temporarily unavailable. Retrying...')
         // You could use setTimeout to retry after a delay
       }
     }
   })
   
   const { data, error, refresh } = useFetch('/api/endpoint', {
     onResponseError({ request, response, options }) {
       // Handle 503 errors
       if (response.status === 503) {
         // Implement retry logic here
         console.error('Server temporarily unavailable. Retrying...')
         // You could use setTimeout to retry after a delay
       }
     }
   })
6. Check for circular dependencies: Ensure that you don't have any circular dependencies in your component imports or Pinia stores, as these can sometimes cause unexpected behavior with useFetch. If you continue to experience issues after trying these solutions, it would be helpful to gather more information about your specific setup, such as your Nuxt version, server configuration, and any relevant error logs. This would allow for a more targeted diagnosis of the problem. Remember, 503 errors often indicate a server-side issue, so it's crucial to investigate both your Nuxt application and your backend server to identify and resolve the root cause of these errors. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------
kapa.ai
kapa.ai•2w ago
<@308122633927393280> Kapa.ai is still learning and improving, please let me know how I did by reacting below.
manniL
manniL•2w ago
https://github.com/nitrojs/nitro/issues/2729
GitHub
Getting "Error: EBUSY: resource busy or locked, access '\.\pipe\ni...
Environment Nuxt - v3.7.4 Nitro - v2.6.3 Reproduction I don't have a proper link to reproduce but using the specified version of nuxt in an app where you have multiple endpoints being called wi...
overthinkerrrr
overthinkerrrrOP•2w ago
Thanks for the reply, I saw this too and commented on it

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