DistCpOptions (Apache Hadoop Main 3.4.0-SNAPSHOT API)

java.lang.Object
- org.apache.hadoop.tools.DistCpOptions

```
@InterfaceAudience.Public
 @InterfaceStability.Evolving
public final class DistCpOptions
extends Object
```
The Options class encapsulates all DistCp options. When you add a new option, please: - Add the field along with javadoc in DistCpOptions and its Builder - Add setter method in the DistCpOptions.Builder class This class is immutable.

Field Summary

Fields
Modifier and Type Field and Description

static int MAX_NUM_LISTSTATUS_THREADS

Fields
Modifier and Type	Field and Description
`static int`	`MAX_NUM_LISTSTATUS_THREADS`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`appendToConf(Configuration conf)` Add options to configuration.
`Path`	`getAtomicWorkPath()`
`int`	`getBlocksPerChunk()`
`int`	`getCopyBufferSize()`
`String`	`getCopyStrategy()`
`String`	`getFiltersFile()`
`String`	`getFromSnapshot()`
`Path`	`getLogPath()`
`float`	`getMapBandwidth()`
`int`	`getMaxMaps()`
`int`	`getNumListstatusThreads()`
`Set<org.apache.hadoop.tools.DistCpOptions.FileAttribute>`	`getPreserveAttributes()`
`Path`	`getSourceFileListing()`
`List<Path>`	`getSourcePaths()`
`Path`	`getTargetPath()`
`String`	`getToSnapshot()`
`Path`	`getTrackPath()`
`boolean`	`shouldAppend()`
`boolean`	`shouldAtomicCommit()`
`boolean`	`shouldBlock()`
`boolean`	`shouldDeleteMissing()`
`boolean`	`shouldDirectWrite()`
`boolean`	`shouldIgnoreFailures()`
`boolean`	`shouldOverwrite()`
`boolean`	`shouldPreserve(org.apache.hadoop.tools.DistCpOptions.FileAttribute attribute)` Checks if the input attribute should be preserved or not.
`boolean`	`shouldSkipCRC()`
`boolean`	`shouldSyncFolder()`
`boolean`	`shouldUpdateRoot()`
`boolean`	`shouldUseDiff()`
`boolean`	`shouldUseIterator()`
`boolean`	`shouldUseRdiff()`
`boolean`	`shouldUseSnapshotDiff()`
`boolean`	`shouldVerboseLog()`
`String`	`toString()` Utility to easily string-ify Options, for logging.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail
- MAX_NUM_LISTSTATUS_THREADS
```
public static final int MAX_NUM_LISTSTATUS_THREADS
```
  See Also:
  
  Constant Field Values

Method Detail

getSourceFileListing
```
public Path getSourceFileListing()
```

getSourcePaths
```
public List<Path> getSourcePaths()
```

getTargetPath
```
public Path getTargetPath()
```

shouldAtomicCommit
```
public boolean shouldAtomicCommit()
```

getAtomicWorkPath
```
public Path getAtomicWorkPath()
```

shouldSyncFolder
```
public boolean shouldSyncFolder()
```

shouldDeleteMissing
```
public boolean shouldDeleteMissing()
```

shouldIgnoreFailures
```
public boolean shouldIgnoreFailures()
```

shouldOverwrite
```
public boolean shouldOverwrite()
```

shouldAppend
```
public boolean shouldAppend()
```

shouldSkipCRC
```
public boolean shouldSkipCRC()
```

shouldBlock
```
public boolean shouldBlock()
```

shouldUseDiff
```
public boolean shouldUseDiff()
```

shouldUseRdiff
```
public boolean shouldUseRdiff()
```

shouldUseSnapshotDiff

public boolean shouldUseSnapshotDiff()

getFromSnapshot
```
public String getFromSnapshot()
```

getToSnapshot
```
public String getToSnapshot()
```

getFiltersFile
```
public String getFiltersFile()
```

getLogPath
```
public Path getLogPath()
```

getCopyStrategy
```
public String getCopyStrategy()
```

getNumListstatusThreads
```
public int getNumListstatusThreads()
```

getMaxMaps
```
public int getMaxMaps()
```

getMapBandwidth
```
public float getMapBandwidth()
```

getPreserveAttributes

public Set<org.apache.hadoop.tools.DistCpOptions.FileAttribute> getPreserveAttributes()

shouldPreserve
```
public boolean shouldPreserve(org.apache.hadoop.tools.DistCpOptions.FileAttribute attribute)
```
Checks if the input attribute should be preserved or not.

Parameters:

attribute - - Attribute to check

Returns:

True if attribute should be preserved, false otherwise

getBlocksPerChunk
```
public int getBlocksPerChunk()
```

getCopyBufferSize
```
public int getCopyBufferSize()
```

shouldVerboseLog
```
public boolean shouldVerboseLog()
```

getTrackPath
```
public Path getTrackPath()
```

shouldDirectWrite
```
public boolean shouldDirectWrite()
```

shouldUseIterator
```
public boolean shouldUseIterator()
```

shouldUpdateRoot
```
public boolean shouldUpdateRoot()
```

appendToConf
```
public void appendToConf(Configuration conf)
```
Add options to configuration. These will be used in the Mapper/committer

Parameters:

conf - - Configuration object to which the options need to be added

toString
```
public String toString()
```
Utility to easily string-ify Options, for logging.

Overrides:

toString in class Object

Returns:

String representation of the Options.

Class DistCpOptions

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

MAX_NUM_LISTSTATUS_THREADS

Method Detail

getSourceFileListing

getSourcePaths

getTargetPath

shouldAtomicCommit

getAtomicWorkPath

shouldSyncFolder

shouldDeleteMissing

shouldIgnoreFailures

shouldOverwrite

shouldAppend

shouldSkipCRC

shouldBlock

shouldUseDiff

shouldUseRdiff

shouldUseSnapshotDiff

getFromSnapshot

getToSnapshot

getFiltersFile

getLogPath

getCopyStrategy

getNumListstatusThreads

getMaxMaps

getMapBandwidth

getPreserveAttributes

shouldPreserve

getBlocksPerChunk

getCopyBufferSize

shouldVerboseLog

getTrackPath

shouldDirectWrite

shouldUseIterator

shouldUpdateRoot

appendToConf

toString