HDFS-16729. RBF: fix some unreasonably annotated docs. (#4745)

Reviewed-by: Inigo Goiri <inigoiri@apache.org>
Signed-off-by: Akira Ajisaka <aajisaka@apache.org>

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

@@ -757,7 +757,7 @@ public class Router extends CompositeService implements
   /**
    * Get the state store interface for the router heartbeats.
    *
-   * @return FederationRouterStateStore state store API handle.
+   * @return RouterStore state store API handle.
    */
   public RouterStore getRouterStateManager() {
     if (this.routerStateManager == null && this.stateStore != null) {

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/MembershipStore.java

@@ -48,7 +48,7 @@ import org.apache.hadoop.hdfs.server.federation.store.records.MembershipState;
  * StateStoreDriver}, NameNode registrations are cached until the next query.
  * The fetched registration data is aggregated using a quorum to determine the
  * best/most accurate state for each NameNode. The cache is periodically updated
- * by the @{link StateStoreCacheUpdateService}.
+ * by the {@link StateStoreCacheUpdateService}.
  */
 @InterfaceAudience.Private
 @InterfaceStability.Evolving

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

@@ -50,6 +50,7 @@ import org.slf4j.LoggerFactory;
  * |--- MEMBERSHIP
  * |--- REBALANCER
  * |--- ROUTERS
+ * |--- DISABLE_NAMESERVICE
  */
 public class StateStoreZooKeeperImpl extends StateStoreSerializableImpl {
 

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/package-info.java

@@ -31,19 +31,21 @@
  * StateStoreDriver} to handle querying, updating and deleting data records. The
  * data storage driver is initialized and maintained by the {@link
  * org.apache.hadoop.hdfs.server.federation.store.StateStoreService
- * FederationStateStoreService}. The state store
+ * StateStoreService}. The state store
  * supports fetching all records of a type, filtering by column values or
  * fetching a single record by its primary key.
  * <p>
  * The state store contains several API interfaces, one for each data records
  * type.
  * <ul>
- * <li>FederationMembershipStateStore: state of all Namenodes in the federation.
+ * <li>MembershipStore: state of all Namenodes in the federation.
  * Uses the MembershipState record.
- * <li>FederationMountTableStore: Mount table mapping paths in the global
+ * <li>MountTableStore: Mount table mapping paths in the global
  * namespace to individual subcluster paths. Uses the MountTable record.
- * <li>RouterStateStore: State of all routers in the federation. Uses the
+ * <li>RouterStore: State of all routers in the federation. Uses the
  * RouterState record.
+ * <li>DisabledNameserviceStore: state of all disabled nameservice in the federation.
+ * Uses the DisabledNameservice record.
  * </ul>
  * Each API is defined in a separate interface. The implementations of these
  * interfaces are responsible for accessing the {@link

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/records/MembershipState.java

@@ -32,7 +32,7 @@ import org.apache.hadoop.hdfs.server.federation.store.driver.StateStoreSerialize
 /**
  * Data schema for storing NN registration information in the
  * {@link org.apache.hadoop.hdfs.server.federation.store.StateStoreService
- * FederationStateStoreService}.
+ * StateStoreService}.
  */
 public abstract class MembershipState extends BaseRecord
     implements FederationNamenodeContext {

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/records/MountTable.java

@@ -42,9 +42,9 @@ import org.apache.hadoop.security.UserGroupInformation;
 /**
  * Data schema for {@link
  * org.apache.hadoop.hdfs.server.federation.store.MountTableStore
- * FederationMountTableStore} data stored in the {@link
+ * MountTableStore} data stored in the {@link
  * org.apache.hadoop.hdfs.server.federation.store.StateStoreService
- * FederationStateStoreService}. Supports string serialization.
+ * StateStoreService}. Supports string serialization.
  */
 public abstract class MountTable extends BaseRecord {
 

hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/store/records/RouterState.java

@@ -31,7 +31,7 @@ import org.slf4j.LoggerFactory;
  * Entry to log the state of a
  * {@link org.apache.hadoop.hdfs.server.federation.router.Router Router} in the
  * {@link org.apache.hadoop.hdfs.server.federation.store.StateStoreService
- * FederationStateStoreService}.
+ * StateStoreService}.
  */
 public abstract class RouterState extends BaseRecord {
 

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

@@ -586,8 +586,6 @@ public class TestStateStoreMembershipState extends TestStateStoreBase {
   /**
    * Register a namenode heartbeat with the state store.
    *
-   * @param store FederationMembershipStateStore instance to retrieve the
-   *          membership data records.
    * @param namenode A fully populated namenode membership record to be
    *          committed to the data store.
    * @return True if successful, false otherwise.

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

@@ -227,7 +227,6 @@ public class TestStateStoreMountTable extends TestStateStoreBase {
   /**
    * Fetch all mount table records beneath a root path.
    *
-   * @param store FederationMountTableStore instance to commit the data.
    * @param mount The root search path, enter "/" to return all mount table
    *          records.
    *