DistCpConstants (Apache Hadoop Distributed Copy 3.2.1 API)

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

@InterfaceAudience.LimitedPrivate(value="Distcp support tools")
 @InterfaceStability.Evolving
public final class DistCpConstants
extends Object

Utility class to hold commonly used constants.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ACLS_NOT_SUPPORTED`
`static String`	`CONF_LABEL_APPEND`
`static String`	`CONF_LABEL_ATOMIC_COPY` Constants mapping to command line switches/input options
`static String`	`CONF_LABEL_BANDWIDTH_MB`
`static String`	`CONF_LABEL_BLOCKS_PER_CHUNK` DistCp Blocks Per Chunk: "distcp.blocks.per.chunk".
`static String`	`CONF_LABEL_COPY_BUFFER_SIZE`
`static String`	`CONF_LABEL_COPY_LISTING_CLASS`
`static String`	`CONF_LABEL_COPY_STRATEGY`
`static String`	`CONF_LABEL_DELETE_MISSING`
`static String`	`CONF_LABEL_DIFF`
`static String`	`CONF_LABEL_DIRECT_WRITE`
`static String`	`CONF_LABEL_DISTCP_JOB_ID` DistCp job id for consumers of the Disctp
`static String`	`CONF_LABEL_FILTERS_FILE`
`static String`	`CONF_LABEL_IGNORE_FAILURES`
`static String`	`CONF_LABEL_LISTING_FILE_PATH`
`static String`	`CONF_LABEL_LISTSTATUS_THREADS`
`static String`	`CONF_LABEL_LOG_PATH`
`static String`	`CONF_LABEL_MAX_CHUNKS_IDEAL`
`static String`	`CONF_LABEL_MAX_CHUNKS_TOLERABLE`
`static String`	`CONF_LABEL_MAX_MAPS`
`static String`	`CONF_LABEL_META_FOLDER`
`static String`	`CONF_LABEL_MIN_RECORDS_PER_CHUNK`
`static String`	`CONF_LABEL_OVERWRITE`
`static String`	`CONF_LABEL_PRESERVE_RAWXATTRS`
`static String`	`CONF_LABEL_PRESERVE_STATUS`
`static String`	`CONF_LABEL_RDIFF`
`static String`	`CONF_LABEL_SIMPLE_LISTING_FILESTATUS_SIZE`
`static String`	`CONF_LABEL_SIMPLE_LISTING_RANDOMIZE_FILES`
`static String`	`CONF_LABEL_SKIP_CRC`
`static String`	`CONF_LABEL_SOURCE_LISTING`
`static String`	`CONF_LABEL_SPLIT_RATIO`
`static String`	`CONF_LABEL_SYNC_FOLDERS`
`static String`	`CONF_LABEL_TARGET_FINAL_PATH`
`static String`	`CONF_LABEL_TARGET_PATH_EXISTS`
`static String`	`CONF_LABEL_TARGET_WORK_PATH`
`static String`	`CONF_LABEL_TOTAL_BYTES_TO_BE_COPIED`
`static String`	`CONF_LABEL_TOTAL_NUMBER_OF_RECORDS`
`static String`	`CONF_LABEL_TRACK_MISSING`
`static String`	`CONF_LABEL_VERBOSE_LOG`
`static String`	`CONF_LABEL_WORK_PATH`
`static int`	`COPY_BUFFER_SIZE_DEFAULT`
`static float`	`DEFAULT_BANDWIDTH_MB`
`static int`	`DEFAULT_LISTSTATUS_THREADS`
`static int`	`DEFAULT_MAPS`
`static int`	`DUPLICATE_INPUT`
`static String`	`HDFS_RESERVED_RAW_DIRECTORY_NAME` Value of reserved raw HDFS directory when copying raw.* xattrs.
`static int`	`INVALID_ARGUMENT`
`static int`	`MAX_CHUNKS_IDEAL_DEFAULT`
`static int`	`MAX_CHUNKS_TOLERABLE_DEFAULT` Constants for DistCp default values of configurable values
`static int`	`MIN_RECORDS_PER_CHUNK_DEFAULT`
`static org.apache.hadoop.fs.Path`	`NONE_PATH`
`static String`	`NONE_PATH_NAME` Constants for NONE file deletion
`static org.apache.hadoop.fs.Path`	`RAW_NONE_PATH`
`static String`	`SOURCE_SORTED_FILE` Filename of sorted files in when tracking saves them.
`static int`	`SPLIT_RATIO_DEFAULT`
`static int`	`SUCCESS` Constants for DistCp return code to shell / consumer of ToolRunner's run
`static String`	`TARGET_LISTING_FILE` Filename of unsorted target listing.
`static String`	`TARGET_SORTED_FILE` Filename of sorted target listing.
`static String`	`UNIFORMSIZE`
`static int`	`UNKNOWN_ERROR`
`static int`	`XATTRS_NOT_SUPPORTED`

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

- Field Detail
  - DEFAULT_LISTSTATUS_THREADS
```
public static final int DEFAULT_LISTSTATUS_THREADS
```
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    Constant Field Values
  - DEFAULT_MAPS
```
public static final int DEFAULT_MAPS
```
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    Constant Field Values
  - DEFAULT_BANDWIDTH_MB
```
public static final float DEFAULT_BANDWIDTH_MB
```
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    Constant Field Values
  - UNIFORMSIZE
```
public static final String UNIFORMSIZE
```
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    Constant Field Values
  - CONF_LABEL_ATOMIC_COPY
```
public static final String CONF_LABEL_ATOMIC_COPY
```
    Constants mapping to command line switches/input options
    
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    Constant Field Values
  - CONF_LABEL_WORK_PATH
```
public static final String CONF_LABEL_WORK_PATH
```
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    Constant Field Values
  - CONF_LABEL_LOG_PATH
```
public static final String CONF_LABEL_LOG_PATH
```
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    Constant Field Values
  - CONF_LABEL_VERBOSE_LOG
```
public static final String CONF_LABEL_VERBOSE_LOG
```
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    Constant Field Values
  - CONF_LABEL_IGNORE_FAILURES
```
public static final String CONF_LABEL_IGNORE_FAILURES
```
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    Constant Field Values
  - CONF_LABEL_PRESERVE_STATUS
```
public static final String CONF_LABEL_PRESERVE_STATUS
```
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    Constant Field Values
  - CONF_LABEL_PRESERVE_RAWXATTRS
```
public static final String CONF_LABEL_PRESERVE_RAWXATTRS
```
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    Constant Field Values
  - CONF_LABEL_SYNC_FOLDERS
```
public static final String CONF_LABEL_SYNC_FOLDERS
```
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    Constant Field Values
  - CONF_LABEL_DELETE_MISSING
```
public static final String CONF_LABEL_DELETE_MISSING
```
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    Constant Field Values
  - CONF_LABEL_TRACK_MISSING
```
public static final String CONF_LABEL_TRACK_MISSING
```
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    Constant Field Values
  - CONF_LABEL_LISTSTATUS_THREADS
```
public static final String CONF_LABEL_LISTSTATUS_THREADS
```
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    Constant Field Values
  - CONF_LABEL_MAX_MAPS
```
public static final String CONF_LABEL_MAX_MAPS
```
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    Constant Field Values
  - CONF_LABEL_SOURCE_LISTING
```
public static final String CONF_LABEL_SOURCE_LISTING
```
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    Constant Field Values
  - CONF_LABEL_COPY_STRATEGY
```
public static final String CONF_LABEL_COPY_STRATEGY
```
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    Constant Field Values
  - CONF_LABEL_SKIP_CRC
```
public static final String CONF_LABEL_SKIP_CRC
```
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    Constant Field Values
  - CONF_LABEL_OVERWRITE
```
public static final String CONF_LABEL_OVERWRITE
```
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    Constant Field Values
  - CONF_LABEL_APPEND
```
public static final String CONF_LABEL_APPEND
```
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    Constant Field Values
  - CONF_LABEL_DIFF
```
public static final String CONF_LABEL_DIFF
```
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    Constant Field Values
  - CONF_LABEL_RDIFF
```
public static final String CONF_LABEL_RDIFF
```
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    Constant Field Values
  - CONF_LABEL_BANDWIDTH_MB
```
public static final String CONF_LABEL_BANDWIDTH_MB
```
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    Constant Field Values
  - CONF_LABEL_SIMPLE_LISTING_FILESTATUS_SIZE
```
public static final String CONF_LABEL_SIMPLE_LISTING_FILESTATUS_SIZE
```
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    Constant Field Values
  - CONF_LABEL_SIMPLE_LISTING_RANDOMIZE_FILES
```
public static final String CONF_LABEL_SIMPLE_LISTING_RANDOMIZE_FILES
```
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    Constant Field Values
  - CONF_LABEL_FILTERS_FILE
```
public static final String CONF_LABEL_FILTERS_FILE
```
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    Constant Field Values
  - CONF_LABEL_MAX_CHUNKS_TOLERABLE
```
public static final String CONF_LABEL_MAX_CHUNKS_TOLERABLE
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_MAX_CHUNKS_IDEAL
```
public static final String CONF_LABEL_MAX_CHUNKS_IDEAL
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_MIN_RECORDS_PER_CHUNK
```
public static final String CONF_LABEL_MIN_RECORDS_PER_CHUNK
```
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    Constant Field Values
  - CONF_LABEL_SPLIT_RATIO
```
public static final String CONF_LABEL_SPLIT_RATIO
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_DIRECT_WRITE
```
public static final String CONF_LABEL_DIRECT_WRITE
```
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    Constant Field Values
  - CONF_LABEL_TOTAL_BYTES_TO_BE_COPIED
```
public static final String CONF_LABEL_TOTAL_BYTES_TO_BE_COPIED
```
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    Constant Field Values
  - CONF_LABEL_TOTAL_NUMBER_OF_RECORDS
```
public static final String CONF_LABEL_TOTAL_NUMBER_OF_RECORDS
```
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    Constant Field Values
  - CONF_LABEL_LISTING_FILE_PATH
```
public static final String CONF_LABEL_LISTING_FILE_PATH
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_TARGET_WORK_PATH
```
public static final String CONF_LABEL_TARGET_WORK_PATH
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_TARGET_FINAL_PATH
```
public static final String CONF_LABEL_TARGET_FINAL_PATH
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_TARGET_PATH_EXISTS
```
public static final String CONF_LABEL_TARGET_PATH_EXISTS
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_DISTCP_JOB_ID
```
public static final String CONF_LABEL_DISTCP_JOB_ID
```
    DistCp job id for consumers of the Disctp
    
    See Also:
    
    Constant Field Values
  - CONF_LABEL_META_FOLDER
```
public static final String CONF_LABEL_META_FOLDER
```
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    Constant Field Values
  - CONF_LABEL_COPY_LISTING_CLASS
```
public static final String CONF_LABEL_COPY_LISTING_CLASS
```
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    Constant Field Values
  - CONF_LABEL_COPY_BUFFER_SIZE
```
public static final String CONF_LABEL_COPY_BUFFER_SIZE
```
    See Also:
    
    Constant Field Values
  - CONF_LABEL_BLOCKS_PER_CHUNK
```
public static final String CONF_LABEL_BLOCKS_PER_CHUNK
```
    DistCp Blocks Per Chunk: "distcp.blocks.per.chunk".
    
    See Also:
    
    Constant Field Values
  - SUCCESS
```
public static final int SUCCESS
```
    Constants for DistCp return code to shell / consumer of ToolRunner's run
    
    See Also:
    
    Constant Field Values
  - INVALID_ARGUMENT
```
public static final int INVALID_ARGUMENT
```
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    Constant Field Values
  - DUPLICATE_INPUT
```
public static final int DUPLICATE_INPUT
```
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    Constant Field Values
  - ACLS_NOT_SUPPORTED
```
public static final int ACLS_NOT_SUPPORTED
```
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    Constant Field Values
  - XATTRS_NOT_SUPPORTED
```
public static final int XATTRS_NOT_SUPPORTED
```
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    Constant Field Values
  - UNKNOWN_ERROR
```
public static final int UNKNOWN_ERROR
```
    See Also:
    
    Constant Field Values
  - MAX_CHUNKS_TOLERABLE_DEFAULT
```
public static final int MAX_CHUNKS_TOLERABLE_DEFAULT
```
    Constants for DistCp default values of configurable values
    
    See Also:
    
    Constant Field Values
  - MAX_CHUNKS_IDEAL_DEFAULT
```
public static final int MAX_CHUNKS_IDEAL_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MIN_RECORDS_PER_CHUNK_DEFAULT
```
public static final int MIN_RECORDS_PER_CHUNK_DEFAULT
```
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    Constant Field Values
  - SPLIT_RATIO_DEFAULT
```
public static final int SPLIT_RATIO_DEFAULT
```
    See Also:
    
    Constant Field Values
  - NONE_PATH_NAME
```
public static final String NONE_PATH_NAME
```
    Constants for NONE file deletion
    
    See Also:
    
    Constant Field Values
  - NONE_PATH
```
public static final org.apache.hadoop.fs.Path NONE_PATH
```
  - RAW_NONE_PATH
```
public static final org.apache.hadoop.fs.Path RAW_NONE_PATH
```
  - HDFS_RESERVED_RAW_DIRECTORY_NAME
```
public static final String HDFS_RESERVED_RAW_DIRECTORY_NAME
```
    Value of reserved raw HDFS directory when copying raw.* xattrs.
    
    See Also:
    
    Constant Field Values
  - COPY_BUFFER_SIZE_DEFAULT
```
public static final int COPY_BUFFER_SIZE_DEFAULT
```
    See Also:
    
    Constant Field Values
  - SOURCE_SORTED_FILE
```
public static final String SOURCE_SORTED_FILE
```
    Filename of sorted files in when tracking saves them.
    
    See Also:
    
    Constant Field Values
  - TARGET_LISTING_FILE
```
public static final String TARGET_LISTING_FILE
```
    Filename of unsorted target listing.
    
    See Also:
    
    Constant Field Values
  - TARGET_SORTED_FILE
```
public static final String TARGET_SORTED_FILE
```
    Filename of sorted target listing.
    
    See Also:
    
    Constant Field Values

Class DistCpConstants

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_LISTSTATUS_THREADS

DEFAULT_MAPS

DEFAULT_BANDWIDTH_MB

UNIFORMSIZE

CONF_LABEL_ATOMIC_COPY

CONF_LABEL_WORK_PATH

CONF_LABEL_LOG_PATH

CONF_LABEL_VERBOSE_LOG

CONF_LABEL_IGNORE_FAILURES

CONF_LABEL_PRESERVE_STATUS

CONF_LABEL_PRESERVE_RAWXATTRS

CONF_LABEL_SYNC_FOLDERS

CONF_LABEL_DELETE_MISSING

CONF_LABEL_TRACK_MISSING

CONF_LABEL_LISTSTATUS_THREADS

CONF_LABEL_MAX_MAPS

CONF_LABEL_SOURCE_LISTING

CONF_LABEL_COPY_STRATEGY

CONF_LABEL_SKIP_CRC

CONF_LABEL_OVERWRITE

CONF_LABEL_APPEND

CONF_LABEL_DIFF

CONF_LABEL_RDIFF

CONF_LABEL_BANDWIDTH_MB

CONF_LABEL_SIMPLE_LISTING_FILESTATUS_SIZE

CONF_LABEL_SIMPLE_LISTING_RANDOMIZE_FILES

CONF_LABEL_FILTERS_FILE

CONF_LABEL_MAX_CHUNKS_TOLERABLE

CONF_LABEL_MAX_CHUNKS_IDEAL

CONF_LABEL_MIN_RECORDS_PER_CHUNK

CONF_LABEL_SPLIT_RATIO

CONF_LABEL_DIRECT_WRITE

CONF_LABEL_TOTAL_BYTES_TO_BE_COPIED

CONF_LABEL_TOTAL_NUMBER_OF_RECORDS

CONF_LABEL_LISTING_FILE_PATH

CONF_LABEL_TARGET_WORK_PATH

CONF_LABEL_TARGET_FINAL_PATH

CONF_LABEL_TARGET_PATH_EXISTS

CONF_LABEL_DISTCP_JOB_ID

CONF_LABEL_META_FOLDER

CONF_LABEL_COPY_LISTING_CLASS

CONF_LABEL_COPY_BUFFER_SIZE

CONF_LABEL_BLOCKS_PER_CHUNK

SUCCESS

INVALID_ARGUMENT

DUPLICATE_INPUT

ACLS_NOT_SUPPORTED

XATTRS_NOT_SUPPORTED

UNKNOWN_ERROR

MAX_CHUNKS_TOLERABLE_DEFAULT

MAX_CHUNKS_IDEAL_DEFAULT

MIN_RECORDS_PER_CHUNK_DEFAULT

SPLIT_RATIO_DEFAULT

NONE_PATH_NAME

NONE_PATH

RAW_NONE_PATH

HDFS_RESERVED_RAW_DIRECTORY_NAME

COPY_BUFFER_SIZE_DEFAULT

SOURCE_SORTED_FILE

TARGET_LISTING_FILE

TARGET_SORTED_FILE