an Posts - Answer Overflow

•Created by an on 3/12/2025 in #workers-help

JS <=> Rust worker streaming

Hi I'm trying to calling from JS service to Rust service using RPC. the RPC output (and input) is limited in 1MB to I have to use stream to bypass the limit I tried with

    let stream1 = str_to_readable_stream(String::from_utf8(out).unwrap().as_str());
    let stream = wasm_streams::ReadableStream::from_raw(stream1);
    Ok(ByteStream { inner: stream })

    let stream1 = str_to_readable_stream(String::from_utf8(out).unwrap().as_str());
    let stream = wasm_streams::ReadableStream::from_raw(stream1);
    Ok(ByteStream { inner: stream })

However I always getting "The destination execution context for this RPC was canceled while the call was still running.". Has anyone experienced this?

3 replies

CDCloudflare Developers

•Created by an on 3/7/2025 in #workers-help

Caches is randomly deleted

Hi, I don't know why, but my cache is set to public, s-maxage=31536000, immutable, and it still expires randomly after a few hours or a day. Any insights about this? Tried searching google but doesnt found any good info I'm certain about this as I checked > 10 times, open devtools to make sure it's removed The logic is simple; I copied it from the doc's example.

        const inCache = await caches.default.match(new Request(cacheKey, ctx.request))
        const query = new URL(ctx.request.url).searchParams
        if (inCache && !query.get('noCache'))
          return new Response(inCache.clone().body, inCache)
....

        const inCache = await caches.default.match(new Request(cacheKey, ctx.request))
        const query = new URL(ctx.request.url).searchParams
        if (inCache && !query.get('noCache'))
          return new Response(inCache.clone().body, inCache)
....

Why s-maxage: I want to share cache between across accounts

12 replies

CDCloudflare Developers

•Created by an on 9/30/2024 in #workers-help

Queue in specific/region

Can I let a queue message run in a specific colo/ region? any idea to achieve this

1 replies

CDCloudflare Developers

•Created by an on 9/24/2024 in #pages-help

"Unknown internal error occurred." if binding R2 buckets to pages

4 replies

CDCloudflare Developers

•Created by an on 6/15/2024 in #workers-help

Worker exceeded memory limit.

4 replies

CDCloudflare Developers

•Created by an on 4/30/2024 in #workers-help

Measurement on cpu time

Is there any way to measure cpu time? Since Date.now() doesn't work as it mentioned in this wiki https://developers.cloudflare.com/workers/runtime-apis/performance My worker is run heavily on cpu with wasm like processing image , measure only database fetches or api fetches is not enough for request tracing, didn't give me enough info to visual the request timeline

10 replies

CDCloudflare Developers

•Created by an on 4/6/2024 in #workers-help

Response time is too high, logs shows it is just 1/15 time, no idea how to debug this case

5 replies

CDCloudflare Developers

•Created by an on 4/5/2024 in #pages-help

No idea why e2e response time is too high than in my log

21 replies

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