ci: set system resource limits for PHP lang tests (#3736)

morrisonlevi · web-flow · commit fd1ba67d5343 · 2026-03-27T12:29:42.000-06:00
* ci: set system resource limits for PHP lang tests

Recently we had a job fail with:

```
Spawning 87 workers...
Warning: stream_socket_accept(): Accept failed: Connection timed out in /usr/local/src/php/run-tests.php on line 1448
ERROR: Failed to accept connection from worker.
```

This is happening because the job doesn't have the right QOS for
resource requests to be respected, so it gets a burstable QOS. Sadly,
the default is a burstable QOS. So we specifically request resources
so that we'll be assigned a guaranteed QOS.

* ci: try enforce-static-cpus

We're not being auto-assigned the guaranteed QoS, try forcing.

* ci: tweak based on latest data now that QoS is enforced
diff --git a/.gitlab/generate-common.php b/.gitlab/generate-common.php
@@ -156,6 +156,10 @@ function windows_git_setup_with_packages() {
       DD_POOL_TRACE_CHECK_FAILURES: true
       DD_DISABLE_ERROR_RESPONSES: true
       SNAPSHOT_REGEX_PLACEHOLDERS: 'path:/\S+/dd-trace-php(?=/),httpbin:(?<=//)httpbin-integration:8080'
+      KUBERNETES_SERVICE_CPU_REQUEST: 1
+      KUBERNETES_SERVICE_CPU_LIMIT: 1
+      KUBERNETES_SERVICE_MEMORY_REQUEST: 512Mi
+      KUBERNETES_SERVICE_MEMORY_LIMIT: 512Mi
 
   request-replayer:
     name: registry.ddbuild.io/images/mirror/datadog/dd-trace-ci:php-request-replayer-2.0
diff --git a/.gitlab/generate-tracer.php b/.gitlab/generate-tracer.php
@@ -484,6 +484,23 @@ function before_script_steps($with_docker_auth = false) {
     REPORT_EXIT_STATUS: "1"
     TEST_PHP_JUNIT: "${CI_PROJECT_DIR}/artifacts/tests/php-tests.xml"
     SKIP_ONLINE_TESTS: "1"
+    WAIT_FOR: test-agent:9126
+<?php if (version_compare($major_minor, "7.4", ">=")): ?>
+    KUBERNETES_CPU_REQUEST: 8
+    KUBERNETES_CPU_LIMIT: 8
+    KUBERNETES_MEMORY_REQUEST: 7Gi
+    KUBERNETES_MEMORY_LIMIT: 7Gi
+<?php else: ?>
+    KUBERNETES_CPU_REQUEST: 1
+    KUBERNETES_CPU_LIMIT: 1
+    KUBERNETES_MEMORY_REQUEST: 4Gi
+    KUBERNETES_MEMORY_LIMIT: 4Gi
+<?php endif; ?>
+    KUBERNETES_HELPER_CPU_REQUEST: 1
+    KUBERNETES_HELPER_CPU_LIMIT: 1
+    KUBERNETES_HELPER_MEMORY_REQUEST: 1Gi
+    KUBERNETES_HELPER_MEMORY_LIMIT: 1Gi
+    KUBERNETES_POD_ANNOTATIONS_1: "ci.ddbuild.io/enforce-static-cpus=true"
 <?php if (version_compare($major_minor, "7.2", ">=")): /* too expensive */ ?>
     DD_INSTRUMENTATION_TELEMETRY_ENABLED: 0
 <?php endif; ?>
