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

Class INode.ReclaimContext

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.INode.ReclaimContext

Enclosing class:

INode

public static class INode.ReclaimContext
extends Object

Context object to record blocks and inodes that need to be reclaimed

Field Summary

Fields

Modifier and Type	Field	Description
protected final BlockStoragePolicySuite	bsps
protected final INode.BlocksMapUpdateInfo	collectedBlocks
protected final List<INode>	removedINodes
protected final List<Long>	removedUCFiles

Constructor Summary

Constructors

Constructor	Description
ReclaimContext(BlockStoragePolicySuite bsps, INode.BlocksMapUpdateInfo collectedBlocks, List<INode> removedINodes, List<Long> removedUCFiles)

Method Summary

Modifier and Type	Method	Description
INode.BlocksMapUpdateInfo	collectedBlocks()
INode.ReclaimContext	getCopy()	make a copy with the same collectedBlocks, removedINodes, and removedUCFiles but a new quotaDelta.
int	getSnapshotIdToBeDeleted()	For FSEditLogOpCodes.OP_DELETE_SNAPSHOT, return the snapshot to be deleted.
int	getSnapshotIdToBeDeleted(int snapshotId, INode inode)
INode.QuotaDelta	quotaDelta()
void	setSnapshotToBeDeleted(Snapshot snapshot)	Set the snapshot to be deleted for FSEditLogOpCodes.OP_DELETE_SNAPSHOT.
BlockStoragePolicySuite	storagePolicySuite()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

bsps

protected final BlockStoragePolicySuite bsps

collectedBlocks

protected final INode.BlocksMapUpdateInfo collectedBlocks

removedINodes

protected final List<INode> removedINodes

removedUCFiles

protected final List<Long> removedUCFiles

Constructor Details

ReclaimContext

public ReclaimContext(BlockStoragePolicySuite bsps,
 INode.BlocksMapUpdateInfo collectedBlocks,
 List<INode> removedINodes,
 List<Long> removedUCFiles)

Parameters:

bsps - block storage policy suite to calculate intended storage type usage

collectedBlocks - blocks collected from the descents for further block deletion/update will be added to the given map.

removedINodes - INodes collected from the descents for further cleaning up of

removedUCFiles - INodes whose leases need to be released

Method Details

setSnapshotToBeDeleted

public void setSnapshotToBeDeleted(Snapshot snapshot)

Set the snapshot to be deleted for FSEditLogOpCodes.OP_DELETE_SNAPSHOT.

Parameters:

snapshot - the snapshot to be deleted

getSnapshotIdToBeDeleted

public int getSnapshotIdToBeDeleted()

For FSEditLogOpCodes.OP_DELETE_SNAPSHOT, return the snapshot to be deleted. For other ops, return Snapshot.CURRENT_STATE_ID.

getSnapshotIdToBeDeleted

public int getSnapshotIdToBeDeleted(int snapshotId,
 INode inode)

storagePolicySuite

public BlockStoragePolicySuite storagePolicySuite()

collectedBlocks

public INode.BlocksMapUpdateInfo collectedBlocks()

quotaDelta

public INode.QuotaDelta quotaDelta()

getCopy

public INode.ReclaimContext getCopy()

make a copy with the same collectedBlocks, removedINodes, and removedUCFiles but a new quotaDelta.