Cloudflare Developers•5mo ago

Worker RPC host logs aren't showing up

I'm experimenting with workers RPC and logs from RPC "host" don't get pushed, but show up in wrangler tail. Is there a known limitation around RPC and logpush? Higher-level problem I'm trying to solve is log tracing when multiple workers are involved in a flow. I was assuming RayID would be equal for the worker invoked with fetch and the one called via RPC, but RPC host logs aren't showing up at all 😅

3 Replies

lesnitsky•5mo ago

rpc caller:

export default {
    async fetch(request: Request, env: Env) {
        const result = await env.RPC_HOST.add(1, 2);
        console.log(`Result: ${result}`);
        return new Response(`Result: ${result}`);
    },
};

export default {
    async fetch(request: Request, env: Env) {
        const result = await env.RPC_HOST.add(1, 2);
        console.log(`Result: ${result}`);
        return new Response(`Result: ${result}`);
    },
};

rpc host:

import { WorkerEntrypoint } from 'cloudflare:workers';

export default class extends WorkerEntrypoint {
    async fetch() {
        return new Response('Hello from Worker B');
    }

    add(a: number, b: number): number {
        console.log(`Adding ${a} and ${b}`);
        return a + b;
    }
}

import { WorkerEntrypoint } from 'cloudflare:workers';

export default class extends WorkerEntrypoint {
    async fetch() {
        return new Response('Hello from Worker B');
    }

    add(a: number, b: number): number {
        console.log(`Adding ${a} and ${b}`);
        return a + b;
    }
}

I can only see "Result: 3", but expect to see "Adding 1 and 2" as well

kian•5mo ago

Those logs would be in the tail logs of the 'rpc host' Worker Oh, so you see them in tail but not Logpush? :blobcatthonking:

lesnitsky•5mo ago

yup, host logs aren't pushed it seems

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Worker RPC host logs aren't showing up