Package org.apache.hadoop.hdfs.protocol

Interface Summary

Interface	Description
LayoutVersion.LayoutFeature	The interface to be implemented by NameNode and DataNode layout features

Class Summary

Class	Description
BlockListAsLongs
BlockListAsLongs.BlockReportReplica
BlockListAsLongs.Builder
CacheDirective	Namenode class that tracks state related to a cached path.
LayoutFlags	LayoutFlags represent features which the FSImage and edit logs can either support or not, independently of layout version.
LayoutVersion	This class tracks changes in the layout version of HDFS.
LayoutVersion.FeatureInfo	Feature information.
SnapshotInfo	SnapshotInfo maintains information for a snapshot
SnapshotInfo.Bean

Enum Summary

Enum	Description
LayoutVersion.Feature	Enums for features that change the layout version before rolling upgrade is supported.

Exception Summary

Exception	Description
FSLimitException
FSLimitException.MaxDirectoryItemsExceededException	Directory has too many items
FSLimitException.PathComponentTooLongException	Path component length is too long
RecoveryInProgressException	Exception indicating that a replica is already being recovery.
RollingUpgradeException	Exception related to rolling upgrade.
SnapshotException	Snapshot related exception.
UnregisteredNodeException	This exception is thrown when a node that has not previously registered is trying to access the name node.