| Class | Description | 
|---|---|
| DeadNodeDetector | Detect the dead nodes in advance, and share this information among all the
 DFSInputStreams in the same client. | 
| DFSClient.DFSDataInputStream | Deprecated use  HdfsDataInputStreaminstead. | 
| DFSInotifyEventInputStream | Stream for reading inotify events. | 
| DFSOpsCountStatistics | This storage statistics tracks how many times each DFS operation was issued. | 
| DFSUtilClient.CorruptedBlocks | A utility class as a container to put corrupted blocks, shared by client
 and datanode. | 
| DistributedFileSystem.HdfsDataOutputStreamBuilder | HdfsDataOutputStreamBuilder provides the HDFS-specific capabilities to
 write file on HDFS. | 
| LocatedBlocksRefresher | Periodically refresh the underlying cached  LocatedBlocksfor eligible registeredDFSInputStreams. | 
| NameNodeProxiesClient.ProxyAndInfo<PROXYTYPE> | Wrapper for a client proxy as well as its associated service ID. | 
| ReadStatistics | A utility class that maintains statistics for reading. | 
| ReplicaAccessor | The public API for ReplicaAccessor objects. | 
| ReplicaAccessorBuilder | The public API for creating a new ReplicaAccessor. | 
| Enum | Description | 
|---|---|
| DFSOpsCountStatistics.OpType | This is for counting distributed file system operations. | 
| Exception | Description | 
|---|---|
| CannotObtainBlockLengthException | This exception is thrown when the length of a LocatedBlock instance
 can not be obtained. | 
| UnknownCipherSuiteException | Thrown when an unknown cipher suite is encountered. | 
| UnknownCryptoProtocolVersionException | 
Copyright © 2008–2023 Apache Software Foundation. All rights reserved.