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@InterfaceAudience.Private @InterfaceStability.Unstable public interface MRConstants
Some handy constants
Field Summary | |
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static String |
APPLICATION_ATTEMPT_ID
Used on by MRv2 |
static long |
COUNTER_UPDATE_INTERVAL
|
static int |
FILE_NOT_FOUND
|
static String |
FOR_REDUCE_TASK
The reduce task number for which this map output is being transferred |
static String |
FROM_MAP_TASK
The map task from which the map output data is being transferred |
static String |
MAP_OUTPUT_LENGTH
The custom http header used for the map output length. |
static String |
RAW_MAP_OUTPUT_LENGTH
The custom http header used for the "raw" map output length. |
static int |
SUCCESS
|
static String |
WORKDIR
Used in MRv1, mostly in TaskTracker code |
Field Detail |
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static final long COUNTER_UPDATE_INTERVAL
static final int SUCCESS
static final int FILE_NOT_FOUND
static final String MAP_OUTPUT_LENGTH
static final String RAW_MAP_OUTPUT_LENGTH
static final String FROM_MAP_TASK
static final String FOR_REDUCE_TASK
static final String WORKDIR
static final String APPLICATION_ATTEMPT_ID
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