tweak

Author: ywangd

modules/repository-s3/src/main/java/org/elasticsearch/repositories/s3/S3ClientsManager.java

@@ -348,11 +348,6 @@ void doClearCache() {}
          */
         public final void close() {
             if (closed.compareAndSet(false, true)) {
-                try {
-                    Thread.sleep(1000);
-                } catch (InterruptedException e) {
-                    throw new RuntimeException(e);
-                }
                 clearCache();
             }
         }

modules/repository-s3/src/test/java/org/elasticsearch/repositories/s3/S3ClientsManagerTests.java

@@ -302,7 +302,7 @@ public void testClientsHolderAfterManagerClosed() {
         final ProjectId projectId = randomUniqueProjectId();
         final String clientName = randomFrom(clientNames);
 
-        s3Service.close()
+        s3Service.close();
         assertTrue(s3ClientsManager.isManagerClosed());
         // New holder can be added after the manager is closed, but no actual client can be created
         updateProjectInClusterState(projectId, newProjectClientsSecrets(projectId, clientName));