YARN-7020. TestAMRMProxy#testAMRMProxyTokenRenewal is flakey. Contributed by Robert Kanter

(cherry picked from commit 14553061be0a341df3e628dcaf06717b4630b05e)

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

@@ -151,13 +151,13 @@ 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, 1500);
-      conf.setInt(YarnConfiguration.RM_NM_HEARTBEAT_INTERVAL_MS, 1500);
-      conf.setInt(YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS, 1500);
+      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);
       // 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, 6);
+          YarnConfiguration.RM_AMRM_TOKEN_MASTER_KEY_ROLLING_INTERVAL_SECS, 20);
       cluster.init(conf);
       cluster.start();
       final Configuration yarnConf = cluster.getConfig();
@@ -198,7 +198,7 @@ public class TestAMRMProxy extends BaseAMRMProxyE2ETest {
         lastToken = response.getAMRMToken();
 
         // Time slot to be sure the AMRMProxy renew the token
-        Thread.sleep(1500);
+        Thread.sleep(4500);
 
       }