HTTP service hangs when a http call is made inside a resource

[chalitha1989]

Description:

$subject. Please see the code and below steps to reproduce.

Steps to reproduce:

1. Create a service using below code and then build and run.

import ballerina/http;


service / on new http:Listener(9090) {


    resource function get greeting() returns string|error {

         final http:Client clientEndpoint = check new ("https://run.mocky.io/v3/164eda0f-9980-4aa1-9e09-94d8ac6ca6e0");
         json resp = check clientEndpoint->get("/");
         return "Resp: " + resp.toBalString();
    }
}

2. Execute below curl to invoke the service for the first time:

curl localhost:9090/greeting

3. Execute the curl for the second time. The client and the server hangs.

Affected Versions:

OS, DB, other environment details and versions:

Ballerina - 2201.2.3
Http - 2.4.3
Mac OS - 12.0.1 (21A559)

Related Issues (optional):

Suggested Labels (optional):

Suggested Assignees (optional):

[chamil321]

This occurs when client HTTP protocol is HTTP2 and backend service is HTTPS. As a workaround either you can downgrade the client to use HTTP1.1 or change the backend service to HTTP
We'll fix this and do a patch on 2201.2.x path

[chamil321]

Fix has been released with HTTP v2.4.4 to DEV CENTRAL for choreo testing today

[chamil321]

Released HTTP v2.4.4 https://github.com/ballerina-platform/module-ballerina-http/releases/tag/v2.4.4

[github-actions]

This issue is NOT closed with a proper Reason/ label. Make sure to add proper reason label before closing. Please add or leave a comment with the proper reason label now.

      - Reason/EngineeringMistake - The issue occurred due to a mistake made in the past.
      - Reason/Regression - The issue has introduced a regression.
      - Reason/MultipleComponentInteraction - Issue occured due to interactions in multiple components.
      - Reason/Complex - Issue occurred due to complex scenario.
      - Reason/Invalid - Issue is invalid.
      - Reason/Other - None of the above cases.