HDFS-9745. TestSecureNNWithQJM#testSecureMode sometimes fails with timeouts. Contributed by Xiao Chen

(cherry picked from commit 126d165efd80e266a8309241f3cf059e358f5019)

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/TestSecureNNWithQJM.java

@@ -78,7 +78,7 @@ public class TestSecureNNWithQJM {
   private MiniJournalCluster mjc;
 
   @Rule
-  public Timeout timeout = new Timeout(30000);
+  public Timeout timeout = new Timeout(180000);
 
   @BeforeClass
   public static void init() throws Exception {