diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
index 9e3619e..b8b891f 100644
--- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
+++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
@@ -373,11 +373,11 @@
public static final String AUTO_FAILOVER_ENABLED =
AUTO_FAILOVER_PREFIX + "enabled";
- public static final boolean DEFAULT_AUTO_FAILOVER_ENABLED = false;
+ public static final boolean DEFAULT_AUTO_FAILOVER_ENABLED = true;
public static final String AUTO_FAILOVER_EMBEDDED =
AUTO_FAILOVER_PREFIX + "embedded";
- public static final boolean DEFAULT_AUTO_FAILOVER_EMBEDDED = false;
+ public static final boolean DEFAULT_AUTO_FAILOVER_EMBEDDED = true;
public static final String AUTO_FAILOVER_ZK_BASE_PATH =
AUTO_FAILOVER_PREFIX + "zk-base-path";
diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestRMFailover.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestRMFailover.java
index 8900b16..a57d507 100644
--- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestRMFailover.java
+++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestRMFailover.java
@@ -172,8 +172,6 @@ public void testExplicitFailover()
@Test
public void testAutomaticFailover()
throws YarnException, InterruptedException, IOException {
- conf.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, true);
- conf.setBoolean(YarnConfiguration.AUTO_FAILOVER_EMBEDDED, true);
conf.set(YarnConfiguration.RM_CLUSTER_ID, "yarn-test-cluster");
conf.set(YarnConfiguration.RM_ZK_ADDRESS, hostPort);
conf.setInt(YarnConfiguration.RM_ZK_TIMEOUT_MS, 2000);
@@ -193,6 +191,7 @@ public void testAutomaticFailover()
@Test
public void testWebAppProxyInStandAloneMode() throws YarnException,
InterruptedException, IOException {
+ conf.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
WebAppProxyServer webAppProxyServer = new WebAppProxyServer();
try {
conf.set(YarnConfiguration.PROXY_ADDRESS, "0.0.0.0:9099");
@@ -227,6 +226,7 @@ public void testWebAppProxyInStandAloneMode() throws YarnException,
@Test
public void testEmbeddedWebAppProxy() throws YarnException,
InterruptedException, IOException {
+ conf.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
cluster.init(conf);
cluster.start();
getAdminService(0).transitionToActive(req);
diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
index 6c8c1a7..c50ea7b 100644
--- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
+++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
@@ -405,17 +405,20 @@
- Enable automatic failover.
+ Enable automatic failover.
+ By default, it is enabled only when HA is enabled
yarn.resourcemanager.ha.automatic-failover.enabled
- false
+ true
- Enable embedded automatic failover. The embedded elector
- relies on the RM state store to handle fencing, and is primarily intended
- to be used in conjunction with ZKRMStateStore.
+ Enable embedded automatic failover.
+ By default, it is enabled only when HA is enabled.
+ The embedded elector relies on the RM state store to handle fencing,
+ and is primarily intended to be used in conjunction with ZKRMStateStore.
+
yarn.resourcemanager.ha.automatic-failover.embedded
- false
+ true
diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHA.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHA.java
index 5b4f570..9bb6464 100644
--- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHA.java
+++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHA.java
@@ -119,6 +119,7 @@ private void checkActiveRMFunctionality() throws IOException {
*/
@Test (timeout = 30000)
public void testStartAndTransitions() throws IOException {
+ configuration.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
Configuration conf = new YarnConfiguration(configuration);
rm = new MockRM(conf);
rm.init(conf);
@@ -178,7 +179,6 @@ public void testTransitionsWhenAutomaticFailoverEnabled() throws IOException {
"automatic failover is enabled";
Configuration conf = new YarnConfiguration(configuration);
- conf.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, true);
rm = new MockRM(conf);
rm.init(conf);
@@ -236,6 +236,7 @@ public void testRMDispatcherForHA() throws IOException {
String errorMessageForEventHandler =
"Expect to get the same number of handlers";
String errorMessageForService = "Expect to get the same number of services";
+ configuration.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
Configuration conf = new YarnConfiguration(configuration);
rm = new MockRM(conf) {
@Override
diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java
index 417f34a..41fdca2 100644
--- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java
+++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java
@@ -159,6 +159,7 @@ public void testFencing() throws Exception {
HAServiceProtocol.RequestSource.REQUEST_BY_USER);
Configuration conf1 = createHARMConf("rm1,rm2", "rm1", 1234);
+ conf1.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
ResourceManager rm1 = new ResourceManager();
rm1.init(conf1);
rm1.start();
@@ -170,6 +171,7 @@ public void testFencing() throws Exception {
rm1.getRMContext().getRMAdminService().getServiceStatus().getState());
Configuration conf2 = createHARMConf("rm1,rm2", "rm2", 5678);
+ conf2.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
ResourceManager rm2 = new ResourceManager();
rm2.init(conf2);
rm2.start();
diff --git hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestMiniYARNClusterForHA.java hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestMiniYARNClusterForHA.java
index 0526685..437acdf 100644
--- hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestMiniYARNClusterForHA.java
+++ hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestMiniYARNClusterForHA.java
@@ -42,7 +42,7 @@
@Before
public void setup() throws IOException, InterruptedException {
Configuration conf = new YarnConfiguration();
-
+ conf.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
cluster = new MiniYARNCluster(TestMiniYARNClusterForHA.class.getName(),
2, 1, 1, 1);
cluster.init(conf);