Ensure no active threads in any threadpool for tests in the integrationTest package

src/integrationTest/java/org/opensearch/security/ThreadPoolTests.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+ */
+package org.opensearch.security;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Map;
+
+import com.carrotsearch.randomizedtesting.annotations.ThreadLeakScope;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.opensearch.common.xcontent.XContentFactory;
+import org.opensearch.core.rest.RestStatus;
+import org.opensearch.core.xcontent.XContentBuilder;
+import org.opensearch.security.http.ExampleSystemIndexPlugin;
+import org.opensearch.test.framework.TestSecurityConfig.AuthcDomain;
+import org.opensearch.test.framework.cluster.ClusterManager;
+import org.opensearch.test.framework.cluster.LocalCluster;
+import org.opensearch.test.framework.cluster.TestRestClient;
+import org.opensearch.test.framework.cluster.TestRestClient.HttpResponse;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.not;
+import static org.opensearch.security.support.ConfigConstants.SECURITY_RESTAPI_ROLES_ENABLED;
+import static org.opensearch.test.framework.TestSecurityConfig.Role.ALL_ACCESS;
+import static org.opensearch.test.framework.TestSecurityConfig.User.USER_ADMIN;
+
+@RunWith(com.carrotsearch.randomizedtesting.RandomizedRunner.class)
+@ThreadLeakScope(ThreadLeakScope.Scope.NONE)
+public class ThreadPoolTests {
+
+    public static final AuthcDomain AUTHC_DOMAIN = new AuthcDomain("basic", 0).httpAuthenticatorWithChallenge("basic").backend("internal");
+
+    @ClassRule
+    public static final LocalCluster cluster = new LocalCluster.Builder().clusterManager(ClusterManager.SINGLENODE)
+        .anonymousAuth(false)
+        .authc(AUTHC_DOMAIN)
+        .users(USER_ADMIN)
+        .plugin(ExampleSystemIndexPlugin.class)
+        .nodeSettings(Map.of(SECURITY_RESTAPI_ROLES_ENABLED, List.of("user_" + USER_ADMIN.getName() + "__" + ALL_ACCESS.getName())))
+        .build();
+
+    @Test
+    public void testEnsureNoThreadLeftRunningInGenericThreadPool() throws IOException, InterruptedException {
+        try (TestRestClient client = cluster.getRestClient(USER_ADMIN)) {
+            client.put("test-index");
+
+            XContentBuilder builder = XContentFactory.jsonBuilder();
+            builder.startObject();
+            builder.field("field1", "foo");
+            builder.endObject();
+
+            HttpResponse indexDocResponse = client.putJson("test-index/_doc/1", builder.toString());
+
+            assertThat(indexDocResponse.getStatusCode(), equalTo(RestStatus.CREATED.getStatus()));
+
+            XContentBuilder updateBuilder = XContentFactory.jsonBuilder();
+            updateBuilder.startObject();
+            updateBuilder.startObject("doc");
+            updateBuilder.field("field1", "bar");
+            updateBuilder.endObject();
+            updateBuilder.endObject();
+
+            HttpResponse updateDocResponse = client.postJson("test-index/_update/1", updateBuilder.toString());
+
+            assertThat(updateDocResponse.getStatusCode(), equalTo(RestStatus.OK.getStatus()));
+
+            client.delete("test-index");
+
+            Thread.sleep(2000);
+
+            HttpResponse hotThreadsResponse = client.get("_nodes/hot_threads");
+
+            assertThat(hotThreadsResponse.getBody(), not(containsString("ClusterStateMetadataDependentPrivileges")));
+        }
+    }
+}

src/main/java/org/opensearch/security/privileges/dlsfls/DlsFlsProcessedConfig.java

@@ -71,6 +71,7 @@ protected void updateClusterStateMetadata(Metadata metadata) {
         long duration = System.currentTimeMillis() - start;
 
         log.debug("Updating DlsFlsProcessedConfig took {} ms", duration);
+        this.metadataVersionEffective = metadata.version();
     }
 
     @Override