HADOOP-19156. ZooKeeper based state stores use different ZK address configs. (#6767). Contributed by liu bin.

Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>
Signed-off-by: He Xiaoqiao <hexiaoqiao@apache.org>

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/curator/ZKCuratorManager.java

@@ -126,7 +126,7 @@ public static List<ZKUtil.ZKAuthInfo> getZKAuths(Configuration conf)
    * Start the connection to the ZooKeeper ensemble.
    * @throws IOException If the connection cannot be started.
    */
-  public void start() throws IOException{
+  public void start() throws IOException {
     this.start(new ArrayList<>());
   }
 
@@ -141,23 +141,45 @@ public void start(List<AuthInfo> authInfos) throws IOException {
 
   /**
    * Start the connection to the ZooKeeper ensemble.
-   *
+   * @param zkHostPort Host:Port of the ZooKeeper.
+   * @throws IOException If the connection cannot be started.
+   */
+  public void start(String zkHostPort) throws IOException {
+    this.start(new ArrayList<>(), false, zkHostPort);
+  }
+
+  /**
+   * Start the connection to the ZooKeeper ensemble.
    * @param authInfos  List of authentication keys.
    * @param sslEnabled If the connection should be SSL/TLS encrypted.
    * @throws IOException If the connection cannot be started.
    */
-  public void start(List<AuthInfo> authInfos, boolean sslEnabled)
+  public void start(List<AuthInfo> authInfos, boolean sslEnabled) throws IOException {
-      throws IOException{
+    this.start(authInfos, sslEnabled, null);
+  }
+
+  /**
+   * Start the connection to the ZooKeeper ensemble.
+   *
+   * @param authInfos  List of authentication keys.
+   * @param sslEnabled If the connection should be SSL/TLS encrypted.
+   * @param zkHostPort Host:Port of the ZooKeeper.
+   * @throws IOException            If the connection cannot be started.
+   */
+  public void start(List<AuthInfo> authInfos, boolean sslEnabled, String zkHostPort)
+      throws IOException {
 
     ZKClientConfig zkClientConfig = new ZKClientConfig();
 
     // Connect to the ZooKeeper ensemble
-    String zkHostPort = conf.get(CommonConfigurationKeys.ZK_ADDRESS);
+    if (zkHostPort == null) {
+      zkHostPort = conf.get(CommonConfigurationKeys.ZK_ADDRESS);
       if (zkHostPort == null) {
         throw new IOException(
             CommonConfigurationKeys.ZK_ADDRESS + " is not configured.");
       }
       LOG.debug("Configured {} as {}", CommonConfigurationKeys.ZK_ADDRESS, zkHostPort);
+    }
 
     int numRetries = conf.getInt(CommonConfigurationKeys.ZK_NUM_RETRIES,
         CommonConfigurationKeys.ZK_NUM_RETRIES_DEFAULT);

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/curator/TestSecureZKCuratorManager.java

@@ -71,9 +71,9 @@ public void setup() throws Exception {
             DELETE_DATA_DIRECTORY_ON_CLOSE, SERVER_ID, TICK_TIME, MAX_CLIENT_CNXNS,
             customConfiguration);
     this.server = new TestingServer(spec, true);
-    this.hadoopConf.set(CommonConfigurationKeys.ZK_ADDRESS, this.server.getConnectString());
+    String zkHostPort = this.server.getConnectString();
     this.curator = new ZKCuratorManager(this.hadoopConf);
-    this.curator.start(new ArrayList<>(), true);
+    this.curator.start(new ArrayList<>(), true, zkHostPort);
   }
 
   /**

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/curator/TestZKCuratorManager.java

@@ -60,11 +60,10 @@ public void setup() throws Exception {
     this.server = new TestingServer();
 
     Configuration conf = new Configuration();
-    conf.set(
+    String zkHostPort = this.server.getConnectString();
-        CommonConfigurationKeys.ZK_ADDRESS, this.server.getConnectString());
 
     this.curator = new ZKCuratorManager(conf);
-    this.curator.start();
+    this.curator.start(zkHostPort);
   }
 
   @After

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RBFConfigKeys.java

@@ -260,6 +260,8 @@ public class RBFConfigKeys extends CommonConfigurationKeysPublic {
       FEDERATION_STORE_ZK_DRIVER_PREFIX + "async.max.threads";
   public static final int FEDERATION_STORE_ZK_ASYNC_MAX_THREADS_DEFAULT =
       -1;
+  public static final String FEDERATION_STORE_ZK_ADDRESS =
+      FEDERATION_STORE_ZK_DRIVER_PREFIX + "address";
 
   // HDFS Router-based federation File based store implementation specific configs
   public static final String FEDERATION_STORE_FILE_ASYNC_THREADS =

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/driver/impl/StateStoreZooKeeperImpl.java

@@ -108,9 +108,10 @@ public boolean initDriver() {
     } else {
       LOG.info("Init StateStoreZookeeperImpl by sync mode.");
     }
+    String zkHostPort = conf.get(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS);
     try {
       this.zkManager = new ZKCuratorManager(conf);
-      this.zkManager.start();
+      this.zkManager.start(zkHostPort);
       this.zkAcl = ZKCuratorManager.getZKAcls(conf);
     } catch (IOException e) {
       LOG.error("Cannot initialize the ZK connection", e);

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/resources/hdfs-rbf-default.xml

@@ -388,6 +388,13 @@
     </description>
   </property>
 
+  <property>
+    <name>dfs.federation.router.store.driver.zk.address</name>
+    <description>
+      Host:Port of the ZooKeeper for StateStoreZooKeeperImpl.
+    </description>
+  </property>
+
   <property>
     <name>dfs.federation.router.store.driver.zk.parent-path</name>
     <value>/hdfs-federation</value>

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterHeartbeatService.java

@@ -22,7 +22,6 @@
 import org.apache.curator.retry.RetryNTimes;
 import org.apache.curator.test.TestingServer;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
 import org.apache.hadoop.hdfs.server.federation.store.RouterStore;
 import org.apache.hadoop.hdfs.server.federation.store.StateStoreService;
@@ -74,7 +73,7 @@ public void setup() throws Exception {
         .retryPolicy(new RetryNTimes(100, 100))
         .build();
     curatorFramework.start();
-    routerConfig.set(CommonConfigurationKeys.ZK_ADDRESS, connectStr);
+    routerConfig.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectStr);
     router.init(routerConfig);
     router.start();
 

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterMountTableCacheRefresh.java

@@ -32,7 +32,6 @@
 
 import org.apache.curator.test.TestingServer;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.hdfs.server.federation.FederationTestUtils;
 import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
@@ -81,7 +80,7 @@ public static void setUp() throws Exception {
     conf.setClass(RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS,
         RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS_DEFAULT,
         FileSubclusterResolver.class);
-    conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
+    conf.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectString);
     conf.setBoolean(RBFConfigKeys.DFS_ROUTER_STORE_ENABLE, true);
     cluster.addRouterOverrides(conf);
     cluster.startCluster();

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterMountTableCacheRefreshSecure.java

@@ -30,7 +30,6 @@
 
 import org.apache.curator.test.TestingServer;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.hdfs.server.federation.FederationTestUtils;
 import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
@@ -86,7 +85,7 @@ public static void setUp() throws Exception {
     conf.setClass(RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS,
         RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS_DEFAULT,
         FileSubclusterResolver.class);
-    conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
+    conf.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectString);
     conf.setBoolean(RBFConfigKeys.DFS_ROUTER_STORE_ENABLE, true);
     cluster = new MiniRouterDFSCluster(false, numNameservices, conf);
     cluster.addRouterOverrides(conf);

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/store/driver/TestStateStoreZK.java

@@ -32,7 +32,6 @@
 import org.apache.curator.retry.RetryNTimes;
 import org.apache.curator.test.TestingServer;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys;
 import org.apache.hadoop.hdfs.server.federation.store.StateStoreUtils;
 import org.apache.hadoop.hdfs.server.federation.store.driver.impl.StateStoreZooKeeperImpl;
@@ -71,7 +70,7 @@ public static void setupCluster() throws Exception {
     // Create the ZK State Store
     Configuration conf =
         getStateStoreConfiguration(StateStoreZooKeeperImpl.class);
-    conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
+    conf.set(RBFConfigKeys.FEDERATION_STORE_ZK_ADDRESS, connectString);
     // Disable auto-repair of connection
     conf.setLong(RBFConfigKeys.FEDERATION_STORE_CONNECTION_TEST_MS,
         TimeUnit.HOURS.toMillis(1));

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java

@@ -112,8 +112,6 @@ private static void addDeprecatedKeys() {
             SYSTEM_METRICS_PUBLISHER_ENABLED),
         new DeprecationDelta(RM_ZK_ACL, CommonConfigurationKeys.ZK_ACL),
         new DeprecationDelta(RM_ZK_AUTH, CommonConfigurationKeys.ZK_AUTH),
-        new DeprecationDelta(RM_ZK_ADDRESS,
-            CommonConfigurationKeys.ZK_ADDRESS),
         new DeprecationDelta(RM_ZK_NUM_RETRIES,
             CommonConfigurationKeys.ZK_NUM_RETRIES),
         new DeprecationDelta(RM_ZK_TIMEOUT_MS,
@@ -4038,6 +4036,9 @@ public static boolean isAclEnabled(Configuration conf) {
   public static final String DEFAULT_FEDERATION_STATESTORE_CLIENT_CLASS =
       "org.apache.hadoop.yarn.server.federation.store.impl.MemoryFederationStateStore";
 
+  public static final String FEDERATION_STATESTORE_ZK_ADDRESS =
+      FEDERATION_PREFIX + "state-store.zk.address";
+
   public static final String FEDERATION_CACHE_TIME_TO_LIVE_SECS =
       FEDERATION_PREFIX + "cache-ttl.secs";
   // 5 minutes

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/test/java/org/apache/hadoop/yarn/conf/TestYarnConfigurationFields.java

@@ -142,7 +142,6 @@ public void initializeMemberVariables() {
         .add(YarnConfiguration.RM_SYSTEM_METRICS_PUBLISHER_ENABLED);
 
     // skip deprecated ZooKeeper settings
-    configurationPropsToSkipCompare.add(YarnConfiguration.RM_ZK_ADDRESS);
     configurationPropsToSkipCompare.add(YarnConfiguration.RM_ZK_NUM_RETRIES);
     configurationPropsToSkipCompare.add(YarnConfiguration.RM_ZK_TIMEOUT_MS);
     configurationPropsToSkipCompare.add(

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml

@@ -581,6 +581,15 @@
     <value>${yarn.resourcemanager.max-completed-applications}</value>
   </property>
 
+  <property>
+    <description>Host:Port of the ZooKeeper server to be used by the RM. This
+      must be supplied when using the ZooKeeper based implementation of the
+      RM state store and/or embedded automatic failover in an HA setting.
+    </description>
+    <name>yarn.resourcemanager.zk-address</name>
+    <!--value>127.0.0.1:2181</value-->
+  </property>
+
   <property>
     <description>Full path of the ZooKeeper znode where RM state will be
     stored. This must be supplied when using
@@ -3798,6 +3807,13 @@
     <value>org.apache.hadoop.yarn.server.federation.store.impl.MemoryFederationStateStore</value>
   </property>
 
+  <property>
+    <description>
+      Host:Port of the ZooKeeper server to be used by the federation state store
+    </description>
+    <name>yarn.federation.state-store.zk.address</name>
+  </property>
+
   <property>
    <description>
     The time in seconds after which the federation state store local cache

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/ZookeeperFederationStateStore.java

@@ -265,9 +265,10 @@ public void init(Configuration conf) throws YarnException {
     baseZNode = conf.get(
         YarnConfiguration.FEDERATION_STATESTORE_ZK_PARENT_PATH,
         YarnConfiguration.DEFAULT_FEDERATION_STATESTORE_ZK_PARENT_PATH);
+    String zkHostPort = conf.get(YarnConfiguration.FEDERATION_STATESTORE_ZK_ADDRESS);
     try {
       this.zkManager = new ZKCuratorManager(conf);
-      this.zkManager.start();
+      this.zkManager.start(zkHostPort);
     } catch (IOException e) {
       LOG.error("Cannot initialize the ZK connection", e);
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/server/federation/store/impl/TestZookeeperFederationStateStore.java

@@ -27,7 +27,6 @@
 import org.apache.curator.retry.RetryNTimes;
 import org.apache.curator.test.TestingServer;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.metrics2.MetricsRecord;
 import org.apache.hadoop.metrics2.impl.MetricsCollectorImpl;
 import org.apache.hadoop.metrics2.impl.MetricsRecords;
@@ -94,7 +93,7 @@ public void before() throws IOException, YarnException {
       curatorFramework.start();
 
       Configuration conf = new YarnConfiguration();
-      conf.set(CommonConfigurationKeys.ZK_ADDRESS, connectString);
+      conf.set(YarnConfiguration.FEDERATION_STATESTORE_ZK_ADDRESS, connectString);
       conf.setInt(YarnConfiguration.FEDERATION_STATESTORE_MAX_APPLICATIONS, 10);
       setConf(conf);
     } catch (Exception e) {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java

@@ -410,6 +410,7 @@ protected EmbeddedElector createEmbeddedElector() throws IOException {
    */
   public ZKCuratorManager createAndStartZKManager(Configuration
       config) throws IOException {
+    String zkHostPort = config.get(YarnConfiguration.RM_ZK_ADDRESS);
     ZKCuratorManager manager = new ZKCuratorManager(config);
 
     // Get authentication
@@ -432,7 +433,7 @@ public ZKCuratorManager createAndStartZKManager(Configuration
         config.getBoolean(CommonConfigurationKeys.ZK_CLIENT_SSL_ENABLED,
             config.getBoolean(YarnConfiguration.RM_ZK_CLIENT_SSL_ENABLED,
                 YarnConfiguration.DEFAULT_RM_ZK_CLIENT_SSL_ENABLED));
-    manager.start(authInfos, isSSLEnabled);
+    manager.start(authInfos, isSSLEnabled, zkHostPort);
     return manager;
   }
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/RMHATestBase.java

@@ -64,7 +64,7 @@ public void setup() throws Exception {
     configuration.setBoolean(YarnConfiguration.RECOVERY_ENABLED, true);
     configuration.set(YarnConfiguration.RM_STORE,
         ZKRMStateStore.class.getName());
-    configuration.set(CommonConfigurationKeys.ZK_ADDRESS, hostPort);
+    configuration.set(YarnConfiguration.RM_ZK_ADDRESS, hostPort);
     configuration.setInt(CommonConfigurationKeys.ZK_TIMEOUT_MS, ZK_TIMEOUT_MS);
     configuration.setBoolean(YarnConfiguration.AUTO_FAILOVER_ENABLED, false);
     configuration.set(YarnConfiguration.RM_CLUSTER_ID, "test-yarn-cluster");

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStore.java

@@ -213,7 +213,7 @@ private String getDelegationTokenNode(int rmDTSequenceNumber, int splitIdx) {
 
     private RMStateStore createStore(Configuration conf) throws Exception {
       workingZnode = "/jira/issue/3077/rmstore";
-      conf.set(CommonConfigurationKeys.ZK_ADDRESS,
+      conf.set(YarnConfiguration.RM_ZK_ADDRESS,
           curatorTestingServer.getConnectString());
       conf.set(YarnConfiguration.ZK_RM_STATE_STORE_PARENT_PATH, workingZnode);
       conf.setLong(YarnConfiguration.RM_EPOCH, epoch);
@@ -347,7 +347,7 @@ public Version getCurrentVersion() throws Exception {
       public RMStateStore getRMStateStore() throws Exception {
         YarnConfiguration conf = new YarnConfiguration();
         workingZnode = "/jira/issue/3077/rmstore";
-        conf.set(CommonConfigurationKeys.ZK_ADDRESS,
+        conf.set(YarnConfiguration.RM_ZK_ADDRESS,
             curatorTestingServer.getConnectString());
         conf.set(YarnConfiguration.ZK_RM_STATE_STORE_PARENT_PATH, workingZnode);
         this.store = new TestZKRMStateStoreInternal(conf, workingZnode) {
@@ -388,7 +388,7 @@ public static Configuration createHARMConf(String rmIds, String rmId,
     conf.set(YarnConfiguration.RM_HA_IDS, rmIds);
     conf.setBoolean(YarnConfiguration.RECOVERY_ENABLED, true);
     conf.set(YarnConfiguration.RM_STORE, ZKRMStateStore.class.getName());
-    conf.set(CommonConfigurationKeys.ZK_ADDRESS,
+    conf.set(YarnConfiguration.RM_ZK_ADDRESS,
         curatorTestServer.getConnectString());
     conf.setInt(CommonConfigurationKeys.ZK_TIMEOUT_MS, ZK_TIMEOUT_MS);
     conf.set(YarnConfiguration.RM_HA_ID, rmId);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/TestZKRMStateStoreZKClientConnections.java

@@ -88,7 +88,7 @@ public TestZKRMStateStore(Configuration conf, String workingZnode)
 
     public RMStateStore getRMStateStore(Configuration conf) throws Exception {
       String workingZnode = "/Test";
-      conf.set(CommonConfigurationKeys.ZK_ADDRESS,
+      conf.set(YarnConfiguration.RM_ZK_ADDRESS,
           testingServer.getConnectString());
       conf.set(YarnConfiguration.ZK_RM_STATE_STORE_PARENT_PATH, workingZnode);
       this.store = new TestZKRMStateStore(conf, workingZnode);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/conf/TestZKConfigurationStore.java

@@ -23,7 +23,6 @@
 import org.apache.curator.retry.RetryNTimes;
 import org.apache.curator.test.TestingServer;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.ha.HAServiceProtocol;
 import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.service.Service;
@@ -100,7 +99,7 @@ public void setUp() throws Exception {
     curatorTestingServer = setupCuratorServer();
     curatorFramework = setupCuratorFramework(curatorTestingServer);
 
-    conf.set(CommonConfigurationKeys.ZK_ADDRESS,
+    conf.set(YarnConfiguration.RM_ZK_ADDRESS,
         curatorTestingServer.getConnectString());
     rm = new MockRM(conf);
     rm.start();

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/Federation.md

@@ -177,7 +177,7 @@ ZooKeeper: one must set the ZooKeeper settings for Hadoop:
 | Property                            | Example                                                                             | Description                             |
 |:------------------------------------|:------------------------------------------------------------------------------------|:----------------------------------------|
 | `yarn.federation.state-store.class` | `org.apache.hadoop.yarn.server.federation.store.impl.ZookeeperFederationStateStore` | The type of state-store to use.         |
-| `hadoop.zk.address`                 | `host:port`                                                                         | The address for the ZooKeeper ensemble. |
+| `yarn.federation.state-store.zk.address`                 | `host:port`                                                                         | The address for the ZooKeeper ensemble. |
 
 SQL: one must setup the following parameters:
 
@@ -1006,7 +1006,7 @@ Example of Machine-Role Mapping(Exclude HDFS):
 
 <!-- ZK Address. -->
 <property>
-  <name>hadoop.zk.address</name>
+  <name>yarn.federation.state-store.zk.address</name>
   <value>zkHost:zkPort</value>
 </property>
 
@@ -1067,7 +1067,7 @@ $HADOOP_HOME/bin/yarn --daemon start resourcemanager
 
 <!-- ZK Address. -->
 <property>
-  <name>hadoop.zk.address</name>
+  <name>yarn.federation.state-store.zk.address</name>
   <value>zkHost:zkPort</value>
 </property>
 
@@ -1135,7 +1135,7 @@ After we have finished configuring the `YARN-2` cluster, we can proceed with sta
 
 <!-- ZK Address. -->
 <property>
-  <name>hadoop.zk.address</name>
+  <name>yarn.federation.state-store.zk.address</name>
   <value>zkHost:zkPort</value>
 </property>
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceManagerHA.md

@@ -56,7 +56,7 @@ Most of the failover functionality is tunable using various configuration proper
 
 | Configuration Properties | Description |
 |:---- |:---- |
-| `hadoop.zk.address` | Address of the ZK-quorum. Used both for the state-store and embedded leader-election. |
+| `yarn.resourcemanager.zk-address` | Address of the ZK-quorum. Used both for the state-store and embedded leader-election. |
 | `yarn.resourcemanager.ha.enabled` | Enable RM HA. |
 | `yarn.resourcemanager.ha.rm-ids` | List of logical IDs for the RMs. e.g., "rm1,rm2". |
 | `yarn.resourcemanager.hostname.`*rm-id* | For each *rm-id*, specify the hostname the RM corresponds to. Alternately, one could set each of the RM's service addresses. |
@@ -112,7 +112,7 @@ Here is the sample of minimal setup for RM failover.
   <value>master2:8088</value>
 </property>
 <property>
-  <name>hadoop.zk.address</name>
+  <name>yarn.resourcemanager.zk-address</name>
   <value>zk1:2181,zk2:2181,zk3:2181</value>
 </property>
 ```

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceManagerRestart.md

@@ -93,7 +93,7 @@ This section describes the configurations involved to enable RM Restart feature.
 
 | Property | Description |
 |:---- |:---- |
-| `hadoop.zk.address` | Comma separated list of Host:Port pairs. Each corresponds to a ZooKeeper server (e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002") to be used by the RM for storing RM state. |
+| `yarn.resourcemanager.zk-address` | Comma separated list of Host:Port pairs. Each corresponds to a ZooKeeper server (e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002") to be used by the RM for storing RM state. |
 | `yarn.resourcemanager.zk-state-store.parent-path` | The full path of the root znode where RM state will be stored. Default value is /rmstore. |
 
 * Configure the retry policy state-store client uses to connect with the ZooKeeper server.
@@ -157,7 +157,7 @@ Below is a minimum set of configurations for enabling RM work-preserving restart
        (e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002") to be used by the RM for storing RM state.
        This must be supplied when using org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore
        as the value for yarn.resourcemanager.store.class</description>
-       <name>hadoop.zk.address</name>
+       <name>yarn.resourcemanager.zk-address</name>
        <value>127.0.0.1:2181</value>
      </property>