public static class DiskBalancer.DiskBalancerMover extends Object implements DiskBalancer.BlockMover
| Constructor and Description |
|---|
DiskBalancerMover(org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi dataset,
org.apache.hadoop.conf.Configuration conf)
Constructs diskBalancerMover.
|
| Modifier and Type | Method and Description |
|---|---|
long |
computeDelay(long bytesCopied,
long timeUsed,
org.apache.hadoop.hdfs.server.datanode.DiskBalancerWorkItem item)
Computes sleep delay needed based on the block that just got copied.
|
void |
copyBlocks(DiskBalancer.VolumePair pair,
org.apache.hadoop.hdfs.server.datanode.DiskBalancerWorkItem item)
Copies blocks from a set of volumes.
|
org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi |
getDataset()
Returns a pointer to the current dataset we are operating against.
|
long |
getElapsedSeconds()
Number of seconds elapsed.
|
long |
getStartTime()
Returns time when this plan started executing.
|
void |
setExitFlag()
Signals copy block to exit.
|
void |
setRunnable()
Sets Diskmover copyblocks into runnable state.
|
boolean |
shouldRun()
Returns the shouldRun boolean flag.
|
public DiskBalancerMover(org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi dataset,
org.apache.hadoop.conf.Configuration conf)
dataset - Datasetconf - Configurationpublic void setRunnable()
setRunnable in interface DiskBalancer.BlockMoverpublic void setExitFlag()
setExitFlag in interface DiskBalancer.BlockMoverpublic boolean shouldRun()
@VisibleForTesting
public long computeDelay(long bytesCopied,
long timeUsed,
org.apache.hadoop.hdfs.server.datanode.DiskBalancerWorkItem item)
bytesCopied - - byteCopied.timeUsed - in millisecondsitem - DiskBalancerWorkItempublic void copyBlocks(DiskBalancer.VolumePair pair, org.apache.hadoop.hdfs.server.datanode.DiskBalancerWorkItem item)
copyBlocks in interface DiskBalancer.BlockMoverpair - - Source and Destination Volumes.item - - Number of bytes to move from volumes.public org.apache.hadoop.hdfs.server.datanode.fsdataset.FsDatasetSpi getDataset()
getDataset in interface DiskBalancer.BlockMoverpublic long getStartTime()
getStartTime in interface DiskBalancer.BlockMoverpublic long getElapsedSeconds()
getElapsedSeconds in interface DiskBalancer.BlockMoverCopyright © 2008–2024 Apache Software Foundation. All rights reserved.