Package org.apache.hadoop.hdfs.server.datanode.fsdataset

Interface Summary

FsVolumeSpi	This is an interface for the underlying volume.
RollingLogs	Rolling logs consist of a current log and a set of previous logs.
RollingLogs.Appender	To append text to the logs.
RollingLogs.LineIterator	To iterate the lines of the logs.

Class Summary

AvailableSpaceVolumeChoosingPolicy<V extends FsVolumeSpi>	A DN volume choosing policy which takes into account the amount of free space on each of the available volumes when considering where to assign a new replica allocation.
FsDatasetSpi.Factory<D extends FsDatasetSpi<?>>	A factory for creating FsDatasetSpi objects.
LengthInputStream	An input stream with length.
ReplicaInputStreams	Contains the input streams for the data and checksum of a replica.
ReplicaOutputStreams	Contains the output streams for the data and checksum of a replica.
RoundRobinVolumeChoosingPolicy<V extends FsVolumeSpi>	Choose volumes in round-robin order.