| Package | Description | 
|---|---|
| org.apache.hadoop.hdfs.server.federation.metrics | Report metrics for Router-based Federation. | 
| org.apache.hadoop.hdfs.server.federation.resolver.order | A federated location can be resolved to multiple subclusters. | 
| org.apache.hadoop.hdfs.server.federation.router | The router package includes the core services for a HDFS federation router. | 
| Modifier and Type | Method and Description | 
|---|---|
| static FederationRPCMetrics | FederationRPCMetrics. create(org.apache.hadoop.conf.Configuration conf,
      RouterRpcServer rpcServer) | 
| void | FederationRPCPerformanceMonitor. init(org.apache.hadoop.conf.Configuration configuration,
    RouterRpcServer rpcServer,
    org.apache.hadoop.hdfs.server.federation.store.StateStoreService stateStore) | 
| Constructor and Description | 
|---|
| FederationRPCMetrics(org.apache.hadoop.conf.Configuration conf,
                    RouterRpcServer rpcServer) | 
| Modifier and Type | Method and Description | 
|---|---|
| protected RouterRpcServer | RouterResolver. getRpcServer()Get the Router RPC server. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | RouterRpcMonitor. init(org.apache.hadoop.conf.Configuration conf,
    RouterRpcServer server,
    org.apache.hadoop.hdfs.server.federation.store.StateStoreService store)Initialize the monitor. | 
| Constructor and Description | 
|---|
| ErasureCoding(RouterRpcServer server) | 
| Quota(org.apache.hadoop.hdfs.server.federation.router.Router router,
     RouterRpcServer server) | 
| RouterCacheAdmin(RouterRpcServer server) | 
| RouterNamenodeProtocol(RouterRpcServer server) | 
| RouterSnapshot(RouterRpcServer server) | 
| RouterStoragePolicy(RouterRpcServer server) | 
| RouterUserProtocol(RouterRpcServer server) | 
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