YARN-11621: Fix intermittently failing unit test: TestAMRMProxy.testAMRMProxyTokenRenewal (#6330) Contributed by susheelgupta7.

Reviewed-by: Shilun Fan <slfan1989@apache.org>
Signed-off-by: Shilun Fan <slfan1989@apache.org>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestAMRMProxy.java

@@ -156,13 +156,13 @@ public class TestAMRMProxy extends BaseAMRMProxyE2ETest {
            YarnClient rmClient = YarnClient.createYarnClient()) {
       Configuration conf = new YarnConfiguration();
       conf.setBoolean(YarnConfiguration.AMRM_PROXY_ENABLED, true);
-      conf.setInt(YarnConfiguration.RM_NM_EXPIRY_INTERVAL_MS, 4500);
-      conf.setInt(YarnConfiguration.RM_NM_HEARTBEAT_INTERVAL_MS, 4500);
-      conf.setInt(YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS, 4500);
+      conf.setInt(YarnConfiguration.RM_NM_EXPIRY_INTERVAL_MS, 8000);
+      conf.setInt(YarnConfiguration.RM_NM_HEARTBEAT_INTERVAL_MS, 8000);
+      conf.setInt(YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS, 12000);
       // RM_AMRM_TOKEN_MASTER_KEY_ROLLING_INTERVAL_SECS should be at least
       // RM_AM_EXPIRY_INTERVAL_MS * 1.5 *3
       conf.setInt(
-          YarnConfiguration.RM_AMRM_TOKEN_MASTER_KEY_ROLLING_INTERVAL_SECS, 20);
+          YarnConfiguration.RM_AMRM_TOKEN_MASTER_KEY_ROLLING_INTERVAL_SECS, 37);
       cluster.init(conf);
       cluster.start();
       final Configuration yarnConf = cluster.getConfig();
@@ -203,7 +203,7 @@ public class TestAMRMProxy extends BaseAMRMProxyE2ETest {
         lastToken = response.getAMRMToken();
 
         // Time slot to be sure the AMRMProxy renew the token
-        Thread.sleep(4500);
+        Thread.sleep(9000);
 
       }