Package org.apache.hadoop.hdfs.server.namenode.ha

Interface Summary

Interface	Description
HAProxyFactory<T>	This interface aims to decouple the proxy creation implementation that used in AbstractNNFailoverProxyProvider.

Class Summary

Class	Description
AbstractNNFailoverProxyProvider<T>
AbstractNNFailoverProxyProvider.NNProxyInfo<T>	ProxyInfo to a NameNode.
ClientHAProxyFactory<T>
ConfiguredFailoverProxyProvider<T>	A FailoverProxyProvider implementation which allows one to configure multiple URIs to connect to during fail-over.
InMemoryAliasMapFailoverProxyProvider<T>	A ConfiguredFailoverProxyProvider implementation used to connect to an InMemoryAliasMap.
IPFailoverProxyProvider<T>	A NNFailoverProxyProvider implementation which works on IP failover setup.
ObserverReadProxyProvider<T>	A FailoverProxyProvider implementation that supports reading from observer namenode(s).
ObserverReadProxyProviderWithIPFailover<T extends ClientProtocol>	Extends ObserverReadProxyProvider to support NameNode IP failover.
RequestHedgingProxyProvider<T>	A FailoverProxyProvider implementation that technically does not "failover" per-se.
RouterObserverReadConfiguredFailoverProxyProvider<T>	A FailoverProxyProvider implementation to support automatic msync-ing when using routers.
RouterObserverReadProxyProvider<T>	A FailoverProxyProvider implementation to support automatic msync-ing when using routers.
WrappedFailoverProxyProvider<T>	A NNFailoverProxyProvider implementation which wrapps old implementations directly implementing the FailoverProxyProvider interface.

Annotation Types Summary

Annotation Type	Description
ReadOnly	Marker interface used to annotate methods that are readonly.