Interface | Description |
---|---|
FsDatasetSpi<V extends FsVolumeSpi> |
This is a service provider interface for the underlying storage that
stores replicas for a data node.
|
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.
|
VolumeChoosingPolicy<V extends FsVolumeSpi> |
This interface specifies the policy for choosing volumes to store replicas.
|
Class | Description |
---|---|
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.
|
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