Open juanstiza opened 1 year ago
The documentation states:
Stateless actors can service multiple requests at the same time. Statelessness means that such actors do not have to cater for concurrency issues.
I assumed (and please correct me if I am wrong) that we could call these actors with any concurrency we desire.
Multiple messages being sent to a stateless actor should be processed in parallel
Messages are being processed one at a time
No clue
import nact from "nact"; const system = nact.start(); const delay = (time) => new Promise((res) => setTimeout(res, time)); const ping = nact.spawnStateless( system, async (msg, ctx) => { console.log(msg); console.log(new Date()) await delay(500); throw new Error("oh no!"); }, "ping", { onCrash: (msg, e, ctx) => { console.log(e) return ctx.escalate } } ); for (let i = 0; i < 5; i++) { nact.dispatch(ping, { i, createdAt: new Date() }); }
This outputs:
{ i: 0, createdAt: 2023-07-06T13:43:31.932Z } 2023-07-06T13:43:31.937Z { i: 1, createdAt: 2023-07-06T13:43:31.932Z } 2023-07-06T13:43:32.440Z { i: 2, createdAt: 2023-07-06T13:43:31.932Z } 2023-07-06T13:43:32.942Z { i: 3, createdAt: 2023-07-06T13:43:31.932Z } 2023-07-06T13:43:33.444Z { i: 4, createdAt: 2023-07-06T13:43:31.932Z } 2023-07-06T13:43:33.947Z
I'm trying to run simple tasks in stateless actors and be able to run them with any desired cocurrency
Tested in node v14.21.3 and v18.14.2 on MacOS 13.4.1
Thanks for reporting this @juanstiza.
Node.js is single-threaded, so it isn't possible to achieve true concurrency.
@larsw That is true, but it is not what this ticket is referencing to. Have you read it?
The documentation states:
I assumed (and please correct me if I am wrong) that we could call these actors with any concurrency we desire.
Expected Behavior
Multiple messages being sent to a stateless actor should be processed in parallel
Current Behavior
Messages are being processed one at a time
Possible Solution
No clue
Steps to Reproduce (for bugs)
This outputs:
Context
I'm trying to run simple tasks in stateless actors and be able to run them with any desired cocurrency
Your Environment
Tested in node v14.21.3 and v18.14.2 on MacOS 13.4.1