navinvishy commented on code in PR #48446:
URL: https://github.com/apache/spark/pull/48446#discussion_r1802401288


##########
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/SparkKubernetesClientFactory.scala:
##########
@@ -103,42 +100,43 @@ object SparkKubernetesClientFactory extends Logging {
       .withRequestTimeout(clientType.requestTimeout(sparkConf))
       .withConnectionTimeout(clientType.connectionTimeout(sparkConf))
       .withTrustCerts(sparkConf.get(KUBERNETES_TRUST_CERTIFICATES))
-      .withOption(oauthTokenValue) {
-        (token, configBuilder) => configBuilder.withOauthToken(token)
-      }.withOption(oauthTokenFile) {
-        (file, configBuilder) =>
-            configBuilder.withOauthToken(Files.asCharSource(file, 
Charsets.UTF_8).read())
-      }.withOption(caCertFile) {
-        (file, configBuilder) => configBuilder.withCaCertFile(file)
-      }.withOption(clientKeyFile) {
-        (file, configBuilder) => configBuilder.withClientKeyFile(file)
-      }.withOption(clientCertFile) {
-        (file, configBuilder) => configBuilder.withClientCertFile(file)
-      }.withOption(namespace) {
-        (ns, configBuilder) => configBuilder.withNamespace(ns)
-      }.build()
-    val factoryWithCustomDispatcher = new OkHttpClientFactory() {
-      override protected def additionalConfig(builder: OkHttpClient.Builder): 
Unit = {
-        builder.dispatcher(dispatcher)
+      .withOption(oauthTokenValue) { (token, configBuilder) =>
+        configBuilder.withOauthToken(token)
       }
-    }
-    logDebug("Kubernetes client config: " +
-      new 
ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(config))
+      .withOption(oauthTokenFile) { (file, configBuilder) =>
+        configBuilder.withOauthToken(Files.asCharSource(file, 
Charsets.UTF_8).read())
+      }
+      .withOption(caCertFile) { (file, configBuilder) =>
+        configBuilder.withCaCertFile(file)
+      }
+      .withOption(clientKeyFile) { (file, configBuilder) =>
+        configBuilder.withClientKeyFile(file)
+      }
+      .withOption(clientCertFile) { (file, configBuilder) =>
+        configBuilder.withClientCertFile(file)
+      }
+      .withOption(namespace) { (ns, configBuilder) =>
+        configBuilder.withNamespace(ns)
+      }
+      .build()
+    logDebug(
+      "Kubernetes client config: " +
+        new 
ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(config))
     new KubernetesClientBuilder()
-      .withHttpClientFactory(factoryWithCustomDispatcher)

Review Comment:
   You can set priority in the provider configuration file:
   ```
   1: <class1>
   2: <class2>
   ```
   The code in fabric8 appears to be 
[honoring](https://github.com/fabric8io/kubernetes-client/blob/main/kubernetes-client-api/src/main/java/io/fabric8/kubernetes/client/utils/HttpClientUtils.java#L183)
 that priority.



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