Remove http pipelining from integration test case (#30788)

This is related to #29500. We are removing the ability to disable http
pipelining. This PR removes the references to disabling pipelining in
the integration test case.

server/src/test/java/org/elasticsearch/discovery/single/SingleNodeDiscoveryIT.java

@@ -150,7 +150,6 @@ public class SingleNodeDiscoveryIT extends ESIntegTestCase {
                         internalCluster().getClusterName(),
                         configurationSource,
                         0,
-                        false,
                         "other",
                         Arrays.asList(getTestTransportPlugin(), MockHttpTransport.TestPlugin.class),
                         Function.identity())) {

test/framework/src/main/java/org/elasticsearch/test/ESIntegTestCase.java

@@ -1829,7 +1829,7 @@ public abstract class ESIntegTestCase extends ESTestCase {
         return new InternalTestCluster(seed, createTempDir(), supportsDedicatedMasters, getAutoMinMasterNodes(),
             minNumDataNodes, maxNumDataNodes,
             InternalTestCluster.clusterName(scope.name(), seed) + "-cluster", nodeConfigurationSource, getNumClientNodes(),
-            InternalTestCluster.DEFAULT_ENABLE_HTTP_PIPELINING, nodePrefix, mockPlugins, getClientWrapper());
+            nodePrefix, mockPlugins, getClientWrapper());
     }
 
     protected NodeConfigurationSource getNodeConfigSource() {

test/framework/src/main/java/org/elasticsearch/test/InternalTestCluster.java

@@ -171,8 +171,6 @@ public final class InternalTestCluster extends TestCluster {
     static final int DEFAULT_MIN_NUM_CLIENT_NODES = 0;
     static final int DEFAULT_MAX_NUM_CLIENT_NODES = 1;
 
-    static final boolean DEFAULT_ENABLE_HTTP_PIPELINING = true;
-
     /* sorted map to make traverse order reproducible, concurrent since we do checks on it not within a sync block */
     private final NavigableMap<String, NodeAndClient> nodes = new TreeMap<>();
 
@@ -219,7 +217,7 @@ public final class InternalTestCluster extends TestCluster {
     public InternalTestCluster(long clusterSeed, Path baseDir,
                                boolean randomlyAddDedicatedMasters,
                                boolean autoManageMinMasterNodes, int minNumDataNodes, int maxNumDataNodes, String clusterName, NodeConfigurationSource nodeConfigurationSource, int numClientNodes,
-                               boolean enableHttpPipelining, String nodePrefix, Collection<Class<? extends Plugin>> mockPlugins, Function<Client, Client> clientWrapper) {
+                               String nodePrefix, Collection<Class<? extends Plugin>> mockPlugins, Function<Client, Client> clientWrapper) {
         super(clusterSeed);
         this.autoManageMinMasterNodes = autoManageMinMasterNodes;
         this.clientWrapper = clientWrapper;

test/framework/src/test/java/org/elasticsearch/test/test/InternalTestClusterTests.java

@@ -19,8 +19,6 @@
  */
 package org.elasticsearch.test.test;
 
-import org.elasticsearch.common.settings.Setting;
-import org.elasticsearch.core.internal.io.IOUtils;
 import org.apache.lucene.util.LuceneTestCase;
 import org.elasticsearch.client.Client;
 import org.elasticsearch.cluster.ClusterName;
@@ -28,6 +26,7 @@ import org.elasticsearch.cluster.node.DiscoveryNode;
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.network.NetworkModule;
 import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.core.internal.io.IOUtils;
 import org.elasticsearch.discovery.DiscoverySettings;
 import org.elasticsearch.discovery.zen.ZenDiscovery;
 import org.elasticsearch.env.NodeEnvironment;
@@ -63,8 +62,6 @@ import static org.elasticsearch.discovery.zen.ElectMasterService.DISCOVERY_ZEN_M
 import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertFileExists;
 import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertFileNotExists;
 import static org.hamcrest.Matchers.equalTo;
-import static org.hamcrest.Matchers.greaterThan;
-import static org.hamcrest.Matchers.hasEntry;
 import static org.hamcrest.Matchers.not;
 
 /**
@@ -86,16 +83,15 @@ public class InternalTestClusterTests extends ESTestCase {
         String clusterName = randomRealisticUnicodeOfCodepointLengthBetween(1, 10);
         NodeConfigurationSource nodeConfigurationSource = NodeConfigurationSource.EMPTY;
         int numClientNodes = randomIntBetween(0, 10);
-        boolean enableHttpPipelining = randomBoolean();
         String nodePrefix = randomRealisticUnicodeOfCodepointLengthBetween(1, 10);
 
         Path baseDir = createTempDir();
         InternalTestCluster cluster0 = new InternalTestCluster(clusterSeed, baseDir, masterNodes,
             randomBoolean(), minNumDataNodes, maxNumDataNodes, clusterName, nodeConfigurationSource, numClientNodes,
-            enableHttpPipelining, nodePrefix, Collections.emptyList(), Function.identity());
+            nodePrefix, Collections.emptyList(), Function.identity());
         InternalTestCluster cluster1 = new InternalTestCluster(clusterSeed, baseDir, masterNodes,
             randomBoolean(), minNumDataNodes, maxNumDataNodes, clusterName, nodeConfigurationSource, numClientNodes,
-            enableHttpPipelining, nodePrefix, Collections.emptyList(), Function.identity());
+            nodePrefix, Collections.emptyList(), Function.identity());
         // TODO: this is not ideal - we should have a way to make sure ports are initialized in the same way
         assertClusters(cluster0, cluster1, false);
 
@@ -211,16 +207,15 @@ public class InternalTestClusterTests extends ESTestCase {
             }
         };
 
-        boolean enableHttpPipelining = randomBoolean();
         String nodePrefix = "foobar";
 
         Path baseDir = createTempDir();
         InternalTestCluster cluster0 = new InternalTestCluster(clusterSeed, baseDir, masterNodes,
             autoManageMinMasterNodes, minNumDataNodes, maxNumDataNodes, clusterName1, nodeConfigurationSource, numClientNodes,
-            enableHttpPipelining, nodePrefix, mockPlugins(), Function.identity());
+            nodePrefix, mockPlugins(), Function.identity());
         InternalTestCluster cluster1 = new InternalTestCluster(clusterSeed, baseDir, masterNodes,
             autoManageMinMasterNodes, minNumDataNodes, maxNumDataNodes, clusterName2, nodeConfigurationSource, numClientNodes,
-            enableHttpPipelining, nodePrefix, mockPlugins(), Function.identity());
+            nodePrefix, mockPlugins(), Function.identity());
 
         assertClusters(cluster0, cluster1, false);
         long seed = randomLong();
@@ -280,12 +275,11 @@ public class InternalTestClusterTests extends ESTestCase {
                     .put(NetworkModule.TRANSPORT_TYPE_KEY, transportClient).build();
             }
         };
-        boolean enableHttpPipelining = randomBoolean();
         String nodePrefix = "test";
         Path baseDir = createTempDir();
         InternalTestCluster cluster = new InternalTestCluster(clusterSeed, baseDir, masterNodes,
             true, minNumDataNodes, maxNumDataNodes, clusterName1, nodeConfigurationSource, numClientNodes,
-            enableHttpPipelining, nodePrefix, mockPlugins(), Function.identity());
+            nodePrefix, mockPlugins(), Function.identity());
         try {
             cluster.beforeTest(random(), 0.0);
             final int originalMasterCount = cluster.numMasterNodes();
@@ -390,7 +384,7 @@ public class InternalTestClusterTests extends ESTestCase {
                 return Settings.builder()
                         .put(NetworkModule.TRANSPORT_TYPE_KEY, transportClient).build();
             }
-        }, 0, randomBoolean(), "", mockPlugins(), Function.identity());
+        }, 0, "", mockPlugins(), Function.identity());
         cluster.beforeTest(random(), 0.0);
         List<DiscoveryNode.Role> roles = new ArrayList<>();
         for (int i = 0; i < numNodes; i++) {
@@ -473,11 +467,10 @@ public class InternalTestClusterTests extends ESTestCase {
                     .put(NetworkModule.TRANSPORT_TYPE_KEY, transportClient).build();
             }
         };
-        boolean enableHttpPipelining = randomBoolean();
         String nodePrefix = "test";
         Path baseDir = createTempDir();
         InternalTestCluster cluster = new InternalTestCluster(randomLong(), baseDir, false, true, 2, 2,
-            "test", nodeConfigurationSource, 0, enableHttpPipelining, nodePrefix,
+            "test", nodeConfigurationSource, 0, nodePrefix,
             mockPlugins(), Function.identity());
         try {
             cluster.beforeTest(random(), 0.0);

x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/audit/index/IndexAuditTrailTests.java

@@ -214,7 +214,7 @@ public class IndexAuditTrailTests extends SecurityIntegTestCase {
             mockPlugins.add(getTestTransportPlugin());
         }
         remoteCluster = new InternalTestCluster(randomLong(), createTempDir(), false, true, numNodes, numNodes, cluster2Name,
-                cluster2SettingsSource, 0, false, SECOND_CLUSTER_NODE_PREFIX, mockPlugins,
+                cluster2SettingsSource, 0, SECOND_CLUSTER_NODE_PREFIX, mockPlugins,
                 useSecurity ? getClientWrapper() : Function.identity());
         remoteCluster.beforeTest(random(), 0.5);
 

x-pack/plugin/security/src/test/java/org/elasticsearch/xpack/security/audit/index/RemoteIndexAuditTrailStartingTests.java

@@ -117,7 +117,7 @@ public class RemoteIndexAuditTrailStartingTests extends SecurityIntegTestCase {
             }
         };
         remoteCluster = new InternalTestCluster(randomLong(), createTempDir(), false, true, numNodes, numNodes,
-                cluster2Name, cluster2SettingsSource, 0, false, SECOND_CLUSTER_NODE_PREFIX, getMockPlugins(), getClientWrapper());
+                cluster2Name, cluster2SettingsSource, 0, SECOND_CLUSTER_NODE_PREFIX, getMockPlugins(), getClientWrapper());
         remoteCluster.beforeTest(random(), 0.0);
         assertNoTimeout(remoteCluster.client().admin().cluster().prepareHealth().setWaitForGreenStatus().get());
     }