Run tests in Gitlab

.gitlab-ci.yml

@@ -112,6 +112,7 @@ default:
     KUBERNETES_MEMORY_REQUEST: 8Gi
     KUBERNETES_MEMORY_LIMIT: 8Gi
     CACHE_TYPE: lib #default
+    RUNTIME_AVAILABLE_PROCESSORS_OVERRIDE: 4 # Runtime.getRuntime().availableProcessors() returns incorrect or very high values in Kubernetes
   cache:
     - key: '$CI_SERVER_VERSION-$CACHE_TYPE' # Dependencies cache. Reset the cache every time gitlab is upgraded.  ~Every couple months
       paths:

dd-java-agent/testing/src/main/groovy/datadog/trace/agent/test/base/HttpServerTest.groovy

@@ -566,8 +566,7 @@ abstract class HttpServerTest<SERVER> extends WithHttpServer<SERVER> {
     def request = request(SUCCESS, method, body).build()
     if (testParallelRequest()) {
       // Limit pool size. Too many threads overwhelm the server and starve the host
-      // availableProcessors() in CI can be very high and incorrect depending on JDK version
-      def poolSize = Math.min(4, Runtime.getRuntime().availableProcessors())
+      def poolSize = System.getenv().getOrDefault("RUNTIME_AVAILABLE_PROCESSORS_OVERRIDE", Runtime.getRuntime().availableProcessors())
       def executor = Executors.newFixedThreadPool(poolSize)
       def completionService = new ExecutorCompletionService(executor)
       (1..count).each {

dd-smoke-tests/log-injection/src/test/resources/SpockConfig.groovy

@@ -4,8 +4,8 @@ runner {
 
     // Runtime.getRuntime().availableProcessors() is used to scale the parallelism by default
     // but it returns weird values in Gitlab/kubernetes so fix the parallelism to a specific value
-    if (System.getenv("GITLAB_CI") != null) {
-      fixed(4)
+    if (System.getenv("RUNTIME_AVAILABLE_PROCESSORS_OVERRIDE") != null) {
+      fixed(Integer.valueOf(System.getenv("RUNTIME_AVAILABLE_PROCESSORS_OVERRIDE")))
     }
   }
 }