MRJobConfig (tez-mapreduce 0.6.2 API)

@InterfaceAudience.Private
@InterfaceStability.Evolving
public interface MRJobConfig

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`APPLICATION_ATTEMPT_ID`
`static String`	`APPLICATION_MASTER_CLASS`
`static String`	`CACHE_ARCHIVES`
`static String`	`CACHE_ARCHIVES_SIZES`
`static String`	`CACHE_ARCHIVES_TIMESTAMPS`
`static String`	`CACHE_ARCHIVES_VISIBILITIES`
`static String`	`CACHE_FILE_TIMESTAMPS`
`static String`	`CACHE_FILE_VISIBILITIES`
`static String`	`CACHE_FILES`
`static String`	`CACHE_FILES_SIZES`
`static String`	`CACHE_LOCALARCHIVES`
`static String`	`CACHE_LOCALFILES`
`static String`	`CACHE_SYMLINK` Deprecated. Symlinks are always on and cannot be disabled.
`static String`	`CLASSPATH_ARCHIVES`
`static String`	`CLASSPATH_FILES`
`static String`	`COMBINE_CLASS_ATTR`
`static String`	`COMBINE_RECORDS_BEFORE_PROGRESS`
`static String`	`COMPLETED_MAPS_FOR_REDUCE_SLOWSTART`
`static int`	`COUNTER_GROUP_NAME_MAX_DEFAULT`
`static String`	`COUNTER_GROUP_NAME_MAX_KEY`
`static int`	`COUNTER_GROUPS_MAX_DEFAULT`
`static String`	`COUNTER_GROUPS_MAX_KEY`
`static int`	`COUNTER_NAME_MAX_DEFAULT`
`static String`	`COUNTER_NAME_MAX_KEY`
`static int`	`COUNTERS_MAX_DEFAULT`
`static String`	`COUNTERS_MAX_KEY`
`static String`	`DEFAULT_JOB_ACL_MODIFY_JOB`
`static String`	`DEFAULT_JOB_ACL_VIEW_JOB`
`static boolean`	`DEFAULT_JOB_AM_ACCESS_DISABLED`
`static String`	`DEFAULT_LOG_LEVEL`
`static int`	`DEFAULT_MAP_CPU_VCORES`
`static int`	`DEFAULT_MAP_MEMORY_MB`
`static String`	`DEFAULT_MAPRED_ADMIN_JAVA_OPTS`
`static String`	`DEFAULT_MAPRED_ADMIN_USER_ENV`
`static String[]`	`DEFAULT_MAPREDUCE_APPLICATION_CLASSPATH` Default CLASSPATH for all YARN MapReduce applications.
`static String`	`DEFAULT_MR_AM_ADMIN_COMMAND_OPTS`
`static String`	`DEFAULT_MR_AM_COMMAND_OPTS`
`static int`	`DEFAULT_MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT`
`static int`	`DEFAULT_MR_AM_CPU_VCORES`
`static long`	`DEFAULT_MR_AM_HISTORY_COMPLETE_EVENT_FLUSH_TIMEOUT_MS`
`static int`	`DEFAULT_MR_AM_HISTORY_JOB_COMPLETE_UNFLUSHED_MULTIPLIER`
`static int`	`DEFAULT_MR_AM_HISTORY_MAX_UNFLUSHED_COMPLETE_EVENTS`
`static int`	`DEFAULT_MR_AM_HISTORY_USE_BATCHED_FLUSH_QUEUE_SIZE_THRESHOLD`
`static int`	`DEFAULT_MR_AM_IGNORE_BLACKLISTING_BLACKLISTED_NODE_PERCENT`
`static int`	`DEFAULT_MR_AM_JOB_CLIENT_THREAD_COUNT`
`static float`	`DEFAULT_MR_AM_JOB_REDUCE_PREEMPTION_LIMIT`
`static float`	`DEFAULT_MR_AM_JOB_REDUCE_RAMP_UP_LIMIT`
`static String`	`DEFAULT_MR_AM_LOG_LEVEL`
`static int`	`DEFAULT_MR_AM_MAX_ATTEMPTS`
`static int`	`DEFAULT_MR_AM_NUM_PROGRESS_SPLITS`
`static long`	`DEFAULT_MR_AM_SCHEDULER_INTERVAL`
`static String`	`DEFAULT_MR_AM_STAGING_DIR`
`static long`	`DEFAULT_MR_AM_TASK_ESTIMATOR_SMOOTH_LAMBDA_MS`
`static int`	`DEFAULT_MR_AM_TASK_LISTENER_THREAD_COUNT`
`static int`	`DEFAULT_MR_AM_TO_RM_HEARTBEAT_INTERVAL_MS`
`static int`	`DEFAULT_MR_AM_TO_RM_WAIT_INTERVAL_MS`
`static int`	`DEFAULT_MR_AM_VMEM_MB`
`static int`	`DEFAULT_MR_CLIENT_MAX_RETRIES`
`static int`	`DEFAULT_MR_CLIENT_TO_AM_IPC_MAX_RETRIES`
`static int`	`DEFAULT_REDUCE_CPU_VCORES`
`static int`	`DEFAULT_REDUCE_MEMORY_MB`
`static String`	`DEFAULT_SHELL`
`static long`	`DEFAULT_SPLIT_METAINFO_MAXSIZE`
`static String`	`GROUP_COMPARATOR_CLASS`
`static String`	`HADOOP_WORK_DIR`
`static String`	`HS_DELEGATION_TOKEN_REQUIRED`
`static String`	`ID`
`static String`	`INDEX_CACHE_MEMORY_LIMIT`
`static String`	`INPUT_FORMAT_CLASS_ATTR`
`static String`	`IO_SORT_FACTOR`
`static String`	`IO_SORT_MB`
`static String`	`JAR`
`static String`	`JAR_UNPACK_PATTERN`
`static String`	`JOB_ACL_MODIFY_JOB`
`static String`	`JOB_ACL_VIEW_JOB`
`static String`	`JOB_AM_ACCESS_DISABLED` AM ACL disabled.
`static String`	`JOB_CANCEL_DELEGATION_TOKEN`
`static String`	`JOB_CONF_FILE`
`static String`	`JOB_JAR`
`static String`	`JOB_JOBTRACKER_ID`
`static String`	`JOB_LOCAL_DIR`
`static String`	`JOB_NAME`
`static String`	`JOB_NAMENODES`
`static String`	`JOB_SPLIT`
`static String`	`JOB_SPLIT_METAINFO`
`static String`	`JOB_SUBMIT_DIR`
`static String`	`JOB_SUBMITHOST`
`static String`	`JOB_SUBMITHOSTADDR`
`static String`	`JOB_UBERTASK_ENABLE`
`static String`	`JOB_UBERTASK_MAXBYTES`
`static String`	`JOB_UBERTASK_MAXMAPS`
`static String`	`JOB_UBERTASK_MAXREDUCES`
`static String`	`JVM_NUMTASKS_TORUN`
`static String`	`KEY_COMPARATOR`
`static String`	`MAP_CLASS_ATTR`
`static String`	`MAP_COMBINE_MIN_SPILLS`
`static String`	`MAP_CPU_VCORES`
`static String`	`MAP_DEBUG_SCRIPT`
`static String`	`MAP_ENV`
`static String`	`MAP_FAILURES_MAX_PERCENT`
`static String`	`MAP_INPUT_FILE`
`static String`	`MAP_INPUT_PATH`
`static String`	`MAP_INPUT_START`
`static String`	`MAP_JAVA_OPTS`
`static String`	`MAP_LOG_LEVEL`
`static String`	`MAP_MAX_ATTEMPTS`
`static String`	`MAP_MEMORY_MB`
`static String`	`MAP_MEMORY_PHYSICAL_MB`
`static String`	`MAP_OUTPUT_COMPRESS`
`static String`	`MAP_OUTPUT_COMPRESS_CODEC`
`static String`	`MAP_OUTPUT_KEY_CLASS`
`static String`	`MAP_OUTPUT_KEY_FIELD_SEPERATOR`
`static String`	`MAP_OUTPUT_VALUE_CLASS`
`static String`	`MAP_SKIP_INCR_PROC_COUNT`
`static String`	`MAP_SKIP_MAX_RECORDS`
`static String`	`MAP_SORT_SPILL_PERCENT`
`static String`	`MAPRED_ADMIN_USER_ENV`
`static String`	`MAPRED_ADMIN_USER_SHELL`
`static String`	`MAPRED_MAP_ADMIN_JAVA_OPTS`
`static String`	`MAPRED_REDUCE_ADMIN_JAVA_OPTS`
`static String`	`MAPREDUCE_APPLICATION_CLASSPATH` CLASSPATH for all YARN MapReduce applications.
`static String`	`MAPREDUCE_JOB_CREDENTIALS_BINARY`
`static String`	`MAPREDUCE_JOB_DIR`
`static String`	`MAPREDUCE_JOB_USER_CLASSPATH_FIRST`
`static String`	`MAPREDUCE_V2_CHILD_CLASS`
`static String`	`MAX_TASK_FAILURES_PER_TRACKER`
`static String`	`MR_AM_ADMIN_COMMAND_OPTS` Admin command opts passed to the MR app master.
`static String`	`MR_AM_ADMIN_USER_ENV`
`static String`	`MR_AM_COMMAND_OPTS` Command line arguments passed to the MR app master.
`static String`	`MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT` Upper limit on the number of threads user to launch containers in the app master.
`static String`	`MR_AM_CPU_VCORES` The number of virtual cores the MR app master needs.
`static String`	`MR_AM_CREATE_JH_INTERMEDIATE_BASE_DIR` Boolean.
`static String`	`MR_AM_ENV`
`static String`	`MR_AM_HISTORY_COMPLETE_EVENT_FLUSH_TIMEOUT_MS`
`static String`	`MR_AM_HISTORY_JOB_COMPLETE_UNFLUSHED_MULTIPLIER`
`static String`	`MR_AM_HISTORY_MAX_UNFLUSHED_COMPLETE_EVENTS`
`static String`	`MR_AM_HISTORY_USE_BATCHED_FLUSH_QUEUE_SIZE_THRESHOLD`
`static String`	`MR_AM_IGNORE_BLACKLISTING_BLACKLISTED_NODE_PERECENT` Ignore blacklisting if a certain percentage of nodes have been blacklisted
`static String`	`MR_AM_JOB_CLIENT_PORT_RANGE` Range of ports that the MapReduce AM can use when binding.
`static String`	`MR_AM_JOB_CLIENT_THREAD_COUNT` Number of threads to handle job client RPC requests.
`static String`	`MR_AM_JOB_NODE_BLACKLISTING_ENABLE` Enable blacklisting of nodes in the job.
`static String`	`MR_AM_JOB_RECOVERY_ENABLE` Enable job recovery.
`static String`	`MR_AM_JOB_REDUCE_PREEMPTION_LIMIT` Limit on the number of reducers that can be preempted to ensure that at least one map task can run if it needs to.
`static String`	`MR_AM_JOB_REDUCE_RAMPUP_UP_LIMIT` Limit reduces starting until a certain percentage of maps have finished.
`static String`	`MR_AM_LOG_LEVEL` Root Logging level passed to the MR app master.
`static String`	`MR_AM_MAX_ATTEMPTS`
`static String`	`MR_AM_NUM_PROGRESS_SPLITS` The number of splits when reporting progress in MR
`static String`	`MR_AM_PREFIX`
`static String`	`MR_AM_SCHEDULER_INTERVAL` How often the AM should schedule assigning tasks with allocated containers.
`static String`	`MR_AM_SECURITY_SERVICE_AUTHORIZATION_CLIENT`
`static String`	`MR_AM_SECURITY_SERVICE_AUTHORIZATION_TASK_UMBILICAL`
`static String`	`MR_AM_STAGING_DIR` The staging directory for map reduce.
`static String`	`MR_AM_TASK_ESTIMATOR` Class used to estimate task resource needs.
`static String`	`MR_AM_TASK_ESTIMATOR_EXPONENTIAL_RATE_ENABLE` true if the smoothing rate should be exponential.
`static String`	`MR_AM_TASK_ESTIMATOR_SMOOTH_LAMBDA_MS` The lambda value in the smoothing function of the task estimator.
`static String`	`MR_AM_TASK_LISTENER_THREAD_COUNT` The number of threads used to handle task RPC calls.
`static String`	`MR_AM_TO_RM_HEARTBEAT_INTERVAL_MS` How often the AM should send heartbeats to the RM.
`static String`	`MR_AM_TO_RM_WAIT_INTERVAL_MS` If contact with RM is lost, the AM will wait MR_AM_TO_RM_WAIT_INTERVAL_MS milliseconds before aborting.
`static String`	`MR_AM_VMEM_MB` The amount of memory the MR app master needs.
`static String`	`MR_CLIENT_MAX_RETRIES` The number of client retries to the RM/HS/AM before throwing exception.
`static String`	`MR_CLIENT_TO_AM_IPC_MAX_RETRIES` The number of client retires to the AM - before reconnecting to the RM to fetch Application State.
`static String`	`MR_PREFIX`
`static String`	`MR_TEZ_INPUT_INITIALIZER_SERIALIZE_EVENT_PAYLOAD`
`static boolean`	`MR_TEZ_INPUT_INITIALIZER_SERIALIZE_EVENT_PAYLOAD_DEFAULT`
`static String`	`MR_TEZ_PREFIX`
`static String`	`MR_TEZ_SPLITS_VIA_EVENTS`
`static boolean`	`MR_TEZ_SPLITS_VIA_EVENTS_DEFAULT`
`static String`	`MROUTPUT_FILE_NAME_PREFIX`
`static String`	`MRR_INTERMEDIATE_STAGE_PREFIX`
`static String`	`MRR_INTERMEDIATE_STAGES`
`static String`	`MRR_VERTEX_PREFIX`
`static String`	`NEW_API_MAPPER_CONFIG`
`static String`	`NEW_API_REDUCER_CONFIG`
`static String`	`NUM_MAP_PROFILES`
`static String`	`NUM_MAPS`
`static String`	`NUM_REDUCE_PROFILES`
`static String`	`NUM_REDUCES`
`static String`	`OUTPUT`
`static String`	`OUTPUT_FORMAT_CLASS_ATTR`
`static String`	`OUTPUT_KEY_CLASS`
`static String`	`OUTPUT_VALUE_CLASS`
`static String`	`PARTITIONER_CLASS_ATTR`
`static String`	`PRESERVE_FAILED_TASK_FILES`
`static String`	`PRESERVE_FILES_PATTERN`
`static String`	`PRIORITY`
`static String`	`QUEUE_NAME`
`static String`	`RECORDS_BEFORE_PROGRESS`
`static String`	`REDUCE_CLASS_ATTR`
`static String`	`REDUCE_CPU_VCORES`
`static String`	`REDUCE_DEBUG_SCRIPT`
`static String`	`REDUCE_ENV`
`static String`	`REDUCE_FAILURES_MAXPERCENT`
`static String`	`REDUCE_INPUT_BUFFER_PERCENT`
`static String`	`REDUCE_JAVA_OPTS`
`static String`	`REDUCE_LOG_LEVEL`
`static String`	`REDUCE_MARKRESET_BUFFER_PERCENT`
`static String`	`REDUCE_MARKRESET_BUFFER_SIZE`
`static String`	`REDUCE_MAX_ATTEMPTS`
`static String`	`REDUCE_MEMORY_MB`
`static String`	`REDUCE_MEMORY_PHYSICAL_MB`
`static String`	`REDUCE_MEMORY_TOTAL_BYTES`
`static String`	`REDUCE_MEMTOMEM_ENABLED`
`static String`	`REDUCE_MEMTOMEM_THRESHOLD`
`static String`	`REDUCE_MERGE_INMEM_THRESHOLD`
`static String`	`REDUCE_SKIP_INCR_PROC_COUNT`
`static String`	`REDUCE_SKIP_MAXGROUPS`
`static String`	`SETUP_CLEANUP_NEEDED`
`static String`	`SHUFFLE_CONNECT_TIMEOUT`
`static String`	`SHUFFLE_FETCH_FAILURES`
`static String`	`SHUFFLE_INPUT_BUFFER_PERCENT`
`static String`	`SHUFFLE_MEMORY_LIMIT_PERCENT`
`static String`	`SHUFFLE_MERGE_PERCENT`
`static String`	`SHUFFLE_NOTIFY_READERROR`
`static String`	`SHUFFLE_PARALLEL_COPIES`
`static String`	`SHUFFLE_READ_TIMEOUT`
`static String`	`SKIP_OUTDIR`
`static String`	`SKIP_RECORDS`
`static String`	`SKIP_START_ATTEMPTS`
`static String`	`SPLIT_FILE`
`static String`	`SPLIT_METAINFO_MAXSIZE`
`static String`	`STDERR_LOGFILE_ENV`
`static String`	`STDOUT_LOGFILE_ENV`
`static String`	`TASK_ATTEMPT_ID`
`static String`	`TASK_CLEANUP_NEEDED`
`static String`	`TASK_DEBUGOUT_LINES`
`static String`	`TASK_ID`
`static String`	`TASK_ISMAP`
`static String`	`TASK_LOG_DIR` The log directory for the containers
`static String`	`TASK_LOG_SIZE`
`static String`	`TASK_MAP_PROFILE_PARAMS`
`static String`	`TASK_OUTPUT_DIR`
`static String`	`TASK_PARTITION`
`static String`	`TASK_PROFILE`
`static String`	`TASK_PROFILE_PARAMS`
`static String`	`TASK_REDUCE_PROFILE_PARAMS`
`static String`	`TASK_TEMP_DIR`
`static String`	`TASK_TIMEOUT`
`static String`	`TASK_TIMEOUT_CHECK_INTERVAL_MS`
`static String`	`TASK_USERLOG_LIMIT`
`static String`	`USER_LOG_RETAIN_HOURS`
`static String`	`USER_NAME`
`static String`	`VERTEX_NAME`
`static String`	`WORKDIR`
`static String`	`WORKING_DIR`

- Field Detail
  - MR_TEZ_PREFIX
```
@InterfaceAudience.Private
static final String MR_TEZ_PREFIX
```
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  - INPUT_FORMAT_CLASS_ATTR
```
static final String INPUT_FORMAT_CLASS_ATTR
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  - NEW_API_MAPPER_CONFIG
```
static final String NEW_API_MAPPER_CONFIG
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  - NEW_API_REDUCER_CONFIG
```
static final String NEW_API_REDUCER_CONFIG
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  - MAP_CLASS_ATTR
```
static final String MAP_CLASS_ATTR
```
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  - COMBINE_CLASS_ATTR
```
static final String COMBINE_CLASS_ATTR
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  - REDUCE_CLASS_ATTR
```
static final String REDUCE_CLASS_ATTR
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  - OUTPUT_FORMAT_CLASS_ATTR
```
static final String OUTPUT_FORMAT_CLASS_ATTR
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  - PARTITIONER_CLASS_ATTR
```
static final String PARTITIONER_CLASS_ATTR
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  - SETUP_CLEANUP_NEEDED
```
static final String SETUP_CLEANUP_NEEDED
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  - TASK_CLEANUP_NEEDED
```
static final String TASK_CLEANUP_NEEDED
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  - JAR
```
static final String JAR
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  - ID
```
static final String ID
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  - JOB_NAME
```
static final String JOB_NAME
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  - JAR_UNPACK_PATTERN
```
static final String JAR_UNPACK_PATTERN
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  - USER_NAME
```
static final String USER_NAME
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  - PRIORITY
```
static final String PRIORITY
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  - QUEUE_NAME
```
static final String QUEUE_NAME
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  - JVM_NUMTASKS_TORUN
```
static final String JVM_NUMTASKS_TORUN
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  - SPLIT_FILE
```
static final String SPLIT_FILE
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  - SPLIT_METAINFO_MAXSIZE
```
static final String SPLIT_METAINFO_MAXSIZE
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  - DEFAULT_SPLIT_METAINFO_MAXSIZE
```
static final long DEFAULT_SPLIT_METAINFO_MAXSIZE
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  - NUM_MAPS
```
static final String NUM_MAPS
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  - MAX_TASK_FAILURES_PER_TRACKER
```
static final String MAX_TASK_FAILURES_PER_TRACKER
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  - COMPLETED_MAPS_FOR_REDUCE_SLOWSTART
```
static final String COMPLETED_MAPS_FOR_REDUCE_SLOWSTART
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  - NUM_REDUCES
```
static final String NUM_REDUCES
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  - SKIP_RECORDS
```
static final String SKIP_RECORDS
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  - SKIP_OUTDIR
```
static final String SKIP_OUTDIR
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  - JOB_LOCAL_DIR
```
static final String JOB_LOCAL_DIR
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  - OUTPUT_KEY_CLASS
```
static final String OUTPUT_KEY_CLASS
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  - OUTPUT_VALUE_CLASS
```
static final String OUTPUT_VALUE_CLASS
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  - KEY_COMPARATOR
```
static final String KEY_COMPARATOR
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  - GROUP_COMPARATOR_CLASS
```
static final String GROUP_COMPARATOR_CLASS
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  - WORKING_DIR
```
static final String WORKING_DIR
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  - CLASSPATH_ARCHIVES
```
static final String CLASSPATH_ARCHIVES
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  - CLASSPATH_FILES
```
static final String CLASSPATH_FILES
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  - CACHE_FILES
```
static final String CACHE_FILES
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  - CACHE_ARCHIVES
```
static final String CACHE_ARCHIVES
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  - CACHE_FILES_SIZES
```
static final String CACHE_FILES_SIZES
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  - CACHE_ARCHIVES_SIZES
```
static final String CACHE_ARCHIVES_SIZES
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  - CACHE_LOCALFILES
```
static final String CACHE_LOCALFILES
```
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  - CACHE_LOCALARCHIVES
```
static final String CACHE_LOCALARCHIVES
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  - CACHE_FILE_TIMESTAMPS
```
static final String CACHE_FILE_TIMESTAMPS
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  - CACHE_ARCHIVES_TIMESTAMPS
```
static final String CACHE_ARCHIVES_TIMESTAMPS
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  - CACHE_FILE_VISIBILITIES
```
static final String CACHE_FILE_VISIBILITIES
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  - CACHE_ARCHIVES_VISIBILITIES
```
static final String CACHE_ARCHIVES_VISIBILITIES
```
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  - CACHE_SYMLINK
```
@Deprecated
static final String CACHE_SYMLINK
```
    Deprecated. Symlinks are always on and cannot be disabled.
    
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  - USER_LOG_RETAIN_HOURS
```
static final String USER_LOG_RETAIN_HOURS
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  - MAPREDUCE_JOB_USER_CLASSPATH_FIRST
```
static final String MAPREDUCE_JOB_USER_CLASSPATH_FIRST
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  - IO_SORT_FACTOR
```
static final String IO_SORT_FACTOR
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  - IO_SORT_MB
```
static final String IO_SORT_MB
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  - INDEX_CACHE_MEMORY_LIMIT
```
static final String INDEX_CACHE_MEMORY_LIMIT
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  - PRESERVE_FAILED_TASK_FILES
```
static final String PRESERVE_FAILED_TASK_FILES
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  - PRESERVE_FILES_PATTERN
```
static final String PRESERVE_FILES_PATTERN
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  - TASK_TEMP_DIR
```
static final String TASK_TEMP_DIR
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  - TASK_DEBUGOUT_LINES
```
static final String TASK_DEBUGOUT_LINES
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  - RECORDS_BEFORE_PROGRESS
```
static final String RECORDS_BEFORE_PROGRESS
```
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  - SKIP_START_ATTEMPTS
```
static final String SKIP_START_ATTEMPTS
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  - TASK_ATTEMPT_ID
```
static final String TASK_ATTEMPT_ID
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  - TASK_ISMAP
```
static final String TASK_ISMAP
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  - TASK_PARTITION
```
static final String TASK_PARTITION
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  - TASK_PROFILE
```
static final String TASK_PROFILE
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  - TASK_PROFILE_PARAMS
```
static final String TASK_PROFILE_PARAMS
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  - NUM_MAP_PROFILES
```
static final String NUM_MAP_PROFILES
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  - NUM_REDUCE_PROFILES
```
static final String NUM_REDUCE_PROFILES
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  - TASK_MAP_PROFILE_PARAMS
```
static final String TASK_MAP_PROFILE_PARAMS
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  - TASK_REDUCE_PROFILE_PARAMS
```
static final String TASK_REDUCE_PROFILE_PARAMS
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  - TASK_TIMEOUT
```
static final String TASK_TIMEOUT
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  - TASK_TIMEOUT_CHECK_INTERVAL_MS
```
static final String TASK_TIMEOUT_CHECK_INTERVAL_MS
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  - TASK_ID
```
static final String TASK_ID
```
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    Constant Field Values
  - TASK_OUTPUT_DIR
```
static final String TASK_OUTPUT_DIR
```
    See Also:
    Constant Field Values
  - TASK_USERLOG_LIMIT
```
static final String TASK_USERLOG_LIMIT
```
    See Also:
    Constant Field Values
  - MAP_SORT_SPILL_PERCENT
```
static final String MAP_SORT_SPILL_PERCENT
```
    See Also:
    Constant Field Values
  - MAP_INPUT_FILE
```
static final String MAP_INPUT_FILE
```
    See Also:
    Constant Field Values
  - MAP_INPUT_PATH
```
static final String MAP_INPUT_PATH
```
    See Also:
    Constant Field Values
  - MAP_INPUT_START
```
static final String MAP_INPUT_START
```
    See Also:
    Constant Field Values
  - MAP_MEMORY_MB
```
static final String MAP_MEMORY_MB
```
    See Also:
    Constant Field Values
  - DEFAULT_MAP_MEMORY_MB
```
static final int DEFAULT_MAP_MEMORY_MB
```
    See Also:
    Constant Field Values
  - MAP_CPU_VCORES
```
static final String MAP_CPU_VCORES
```
    See Also:
    Constant Field Values
  - DEFAULT_MAP_CPU_VCORES
```
static final int DEFAULT_MAP_CPU_VCORES
```
    See Also:
    Constant Field Values
  - MAP_MEMORY_PHYSICAL_MB
```
static final String MAP_MEMORY_PHYSICAL_MB
```
    See Also:
    Constant Field Values
  - MAP_ENV
```
static final String MAP_ENV
```
    See Also:
    Constant Field Values
  - MAP_JAVA_OPTS
```
static final String MAP_JAVA_OPTS
```
    See Also:
    Constant Field Values
  - MAP_MAX_ATTEMPTS
```
static final String MAP_MAX_ATTEMPTS
```
    See Also:
    Constant Field Values
  - MAP_DEBUG_SCRIPT
```
static final String MAP_DEBUG_SCRIPT
```
    See Also:
    Constant Field Values
  - MAP_FAILURES_MAX_PERCENT
```
static final String MAP_FAILURES_MAX_PERCENT
```
    See Also:
    Constant Field Values
  - MAP_SKIP_INCR_PROC_COUNT
```
static final String MAP_SKIP_INCR_PROC_COUNT
```
    See Also:
    Constant Field Values
  - MAP_SKIP_MAX_RECORDS
```
static final String MAP_SKIP_MAX_RECORDS
```
    See Also:
    Constant Field Values
  - MAP_COMBINE_MIN_SPILLS
```
static final String MAP_COMBINE_MIN_SPILLS
```
    See Also:
    Constant Field Values
  - MAP_OUTPUT_COMPRESS
```
static final String MAP_OUTPUT_COMPRESS
```
    See Also:
    Constant Field Values
  - MAP_OUTPUT_COMPRESS_CODEC
```
static final String MAP_OUTPUT_COMPRESS_CODEC
```
    See Also:
    Constant Field Values
  - MAP_OUTPUT_KEY_CLASS
```
static final String MAP_OUTPUT_KEY_CLASS
```
    See Also:
    Constant Field Values
  - MAP_OUTPUT_VALUE_CLASS
```
static final String MAP_OUTPUT_VALUE_CLASS
```
    See Also:
    Constant Field Values
  - MAP_OUTPUT_KEY_FIELD_SEPERATOR
```
static final String MAP_OUTPUT_KEY_FIELD_SEPERATOR
```
    See Also:
    Constant Field Values
  - MAP_LOG_LEVEL
```
static final String MAP_LOG_LEVEL
```
    See Also:
    Constant Field Values
  - REDUCE_LOG_LEVEL
```
static final String REDUCE_LOG_LEVEL
```
    See Also:
    Constant Field Values
  - DEFAULT_LOG_LEVEL
```
static final String DEFAULT_LOG_LEVEL
```
    See Also:
    Constant Field Values
  - REDUCE_MERGE_INMEM_THRESHOLD
```
static final String REDUCE_MERGE_INMEM_THRESHOLD
```
    See Also:
    Constant Field Values
  - REDUCE_INPUT_BUFFER_PERCENT
```
static final String REDUCE_INPUT_BUFFER_PERCENT
```
    See Also:
    Constant Field Values
  - REDUCE_MARKRESET_BUFFER_PERCENT
```
static final String REDUCE_MARKRESET_BUFFER_PERCENT
```
    See Also:
    Constant Field Values
  - REDUCE_MARKRESET_BUFFER_SIZE
```
static final String REDUCE_MARKRESET_BUFFER_SIZE
```
    See Also:
    Constant Field Values
  - REDUCE_MEMORY_PHYSICAL_MB
```
static final String REDUCE_MEMORY_PHYSICAL_MB
```
    See Also:
    Constant Field Values
  - REDUCE_MEMORY_MB
```
static final String REDUCE_MEMORY_MB
```
    See Also:
    Constant Field Values
  - DEFAULT_REDUCE_MEMORY_MB
```
static final int DEFAULT_REDUCE_MEMORY_MB
```
    See Also:
    Constant Field Values
  - REDUCE_CPU_VCORES
```
static final String REDUCE_CPU_VCORES
```
    See Also:
    Constant Field Values
  - DEFAULT_REDUCE_CPU_VCORES
```
static final int DEFAULT_REDUCE_CPU_VCORES
```
    See Also:
    Constant Field Values
  - REDUCE_MEMORY_TOTAL_BYTES
```
static final String REDUCE_MEMORY_TOTAL_BYTES
```
    See Also:
    Constant Field Values
  - SHUFFLE_INPUT_BUFFER_PERCENT
```
static final String SHUFFLE_INPUT_BUFFER_PERCENT
```
    See Also:
    Constant Field Values
  - SHUFFLE_MEMORY_LIMIT_PERCENT
```
static final String SHUFFLE_MEMORY_LIMIT_PERCENT
```
    See Also:
    Constant Field Values
  - SHUFFLE_MERGE_PERCENT
```
static final String SHUFFLE_MERGE_PERCENT
```
    See Also:
    Constant Field Values
  - REDUCE_FAILURES_MAXPERCENT
```
static final String REDUCE_FAILURES_MAXPERCENT
```
    See Also:
    Constant Field Values
  - REDUCE_ENV
```
static final String REDUCE_ENV
```
    See Also:
    Constant Field Values
  - REDUCE_JAVA_OPTS
```
static final String REDUCE_JAVA_OPTS
```
    See Also:
    Constant Field Values
  - MAPREDUCE_JOB_DIR
```
static final String MAPREDUCE_JOB_DIR
```
    See Also:
    Constant Field Values
  - REDUCE_MAX_ATTEMPTS
```
static final String REDUCE_MAX_ATTEMPTS
```
    See Also:
    Constant Field Values
  - SHUFFLE_PARALLEL_COPIES
```
static final String SHUFFLE_PARALLEL_COPIES
```
    See Also:
    Constant Field Values
  - REDUCE_DEBUG_SCRIPT
```
static final String REDUCE_DEBUG_SCRIPT
```
    See Also:
    Constant Field Values
  - SHUFFLE_CONNECT_TIMEOUT
```
static final String SHUFFLE_CONNECT_TIMEOUT
```
    See Also:
    Constant Field Values
  - SHUFFLE_READ_TIMEOUT
```
static final String SHUFFLE_READ_TIMEOUT
```
    See Also:
    Constant Field Values
  - SHUFFLE_FETCH_FAILURES
```
static final String SHUFFLE_FETCH_FAILURES
```
    See Also:
    Constant Field Values
  - SHUFFLE_NOTIFY_READERROR
```
static final String SHUFFLE_NOTIFY_READERROR
```
    See Also:
    Constant Field Values
  - REDUCE_SKIP_INCR_PROC_COUNT
```
static final String REDUCE_SKIP_INCR_PROC_COUNT
```
    See Also:
    Constant Field Values
  - REDUCE_SKIP_MAXGROUPS
```
static final String REDUCE_SKIP_MAXGROUPS
```
    See Also:
    Constant Field Values
  - REDUCE_MEMTOMEM_THRESHOLD
```
static final String REDUCE_MEMTOMEM_THRESHOLD
```
    See Also:
    Constant Field Values
  - REDUCE_MEMTOMEM_ENABLED
```
static final String REDUCE_MEMTOMEM_ENABLED
```
    See Also:
    Constant Field Values
  - COMBINE_RECORDS_BEFORE_PROGRESS
```
static final String COMBINE_RECORDS_BEFORE_PROGRESS
```
    See Also:
    Constant Field Values
  - JOB_NAMENODES
```
static final String JOB_NAMENODES
```
    See Also:
    Constant Field Values
  - JOB_JOBTRACKER_ID
```
static final String JOB_JOBTRACKER_ID
```
    See Also:
    Constant Field Values
  - JOB_CANCEL_DELEGATION_TOKEN
```
static final String JOB_CANCEL_DELEGATION_TOKEN
```
    See Also:
    Constant Field Values
  - JOB_ACL_VIEW_JOB
```
static final String JOB_ACL_VIEW_JOB
```
    See Also:
    Constant Field Values
  - DEFAULT_JOB_ACL_VIEW_JOB
```
static final String DEFAULT_JOB_ACL_VIEW_JOB
```
    See Also:
    Constant Field Values
  - JOB_ACL_MODIFY_JOB
```
static final String JOB_ACL_MODIFY_JOB
```
    See Also:
    Constant Field Values
  - DEFAULT_JOB_ACL_MODIFY_JOB
```
static final String DEFAULT_JOB_ACL_MODIFY_JOB
```
    See Also:
    Constant Field Values
  - MAPREDUCE_JOB_CREDENTIALS_BINARY
```
static final String MAPREDUCE_JOB_CREDENTIALS_BINARY
```
    See Also:
    Constant Field Values
  - JOB_SUBMITHOST
```
static final String JOB_SUBMITHOST
```
    See Also:
    Constant Field Values
  - JOB_SUBMITHOSTADDR
```
static final String JOB_SUBMITHOSTADDR
```
    See Also:
    Constant Field Values
  - COUNTERS_MAX_KEY
```
static final String COUNTERS_MAX_KEY
```
    See Also:
    Constant Field Values
  - COUNTERS_MAX_DEFAULT
```
static final int COUNTERS_MAX_DEFAULT
```
    See Also:
    Constant Field Values
  - COUNTER_GROUP_NAME_MAX_KEY
```
static final String COUNTER_GROUP_NAME_MAX_KEY
```
    See Also:
    Constant Field Values
  - COUNTER_GROUP_NAME_MAX_DEFAULT
```
static final int COUNTER_GROUP_NAME_MAX_DEFAULT
```
    See Also:
    Constant Field Values
  - COUNTER_NAME_MAX_KEY
```
static final String COUNTER_NAME_MAX_KEY
```
    See Also:
    Constant Field Values
  - COUNTER_NAME_MAX_DEFAULT
```
static final int COUNTER_NAME_MAX_DEFAULT
```
    See Also:
    Constant Field Values
  - COUNTER_GROUPS_MAX_KEY
```
static final String COUNTER_GROUPS_MAX_KEY
```
    See Also:
    Constant Field Values
  - COUNTER_GROUPS_MAX_DEFAULT
```
static final int COUNTER_GROUPS_MAX_DEFAULT
```
    See Also:
    Constant Field Values
  - JOB_UBERTASK_ENABLE
```
static final String JOB_UBERTASK_ENABLE
```
    See Also:
    Constant Field Values
  - JOB_UBERTASK_MAXMAPS
```
static final String JOB_UBERTASK_MAXMAPS
```
    See Also:
    Constant Field Values
  - JOB_UBERTASK_MAXREDUCES
```
static final String JOB_UBERTASK_MAXREDUCES
```
    See Also:
    Constant Field Values
  - JOB_UBERTASK_MAXBYTES
```
static final String JOB_UBERTASK_MAXBYTES
```
    See Also:
    Constant Field Values
  - MR_PREFIX
```
static final String MR_PREFIX
```
    See Also:
    Constant Field Values
  - MR_AM_PREFIX
```
static final String MR_AM_PREFIX
```
    See Also:
    Constant Field Values
  - MR_CLIENT_TO_AM_IPC_MAX_RETRIES
```
static final String MR_CLIENT_TO_AM_IPC_MAX_RETRIES
```
    The number of client retires to the AM - before reconnecting to the RM to fetch Application State.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_CLIENT_TO_AM_IPC_MAX_RETRIES
```
static final int DEFAULT_MR_CLIENT_TO_AM_IPC_MAX_RETRIES
```
    See Also:
    Constant Field Values
  - MR_CLIENT_MAX_RETRIES
```
static final String MR_CLIENT_MAX_RETRIES
```
    The number of client retries to the RM/HS/AM before throwing exception.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_CLIENT_MAX_RETRIES
```
static final int DEFAULT_MR_CLIENT_MAX_RETRIES
```
    See Also:
    Constant Field Values
  - MR_AM_STAGING_DIR
```
static final String MR_AM_STAGING_DIR
```
    The staging directory for map reduce.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_STAGING_DIR
```
static final String DEFAULT_MR_AM_STAGING_DIR
```
    See Also:
    Constant Field Values
  - MR_AM_VMEM_MB
```
static final String MR_AM_VMEM_MB
```
    The amount of memory the MR app master needs.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_VMEM_MB
```
static final int DEFAULT_MR_AM_VMEM_MB
```
    See Also:
    Constant Field Values
  - MR_AM_CPU_VCORES
```
static final String MR_AM_CPU_VCORES
```
    The number of virtual cores the MR app master needs.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_CPU_VCORES
```
static final int DEFAULT_MR_AM_CPU_VCORES
```
    See Also:
    Constant Field Values
  - MR_AM_COMMAND_OPTS
```
static final String MR_AM_COMMAND_OPTS
```
    Command line arguments passed to the MR app master.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_COMMAND_OPTS
```
static final String DEFAULT_MR_AM_COMMAND_OPTS
```
    See Also:
    Constant Field Values
  - MR_AM_ADMIN_COMMAND_OPTS
```
static final String MR_AM_ADMIN_COMMAND_OPTS
```
    Admin command opts passed to the MR app master.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_ADMIN_COMMAND_OPTS
```
static final String DEFAULT_MR_AM_ADMIN_COMMAND_OPTS
```
    See Also:
    Constant Field Values
  - MR_AM_LOG_LEVEL
```
static final String MR_AM_LOG_LEVEL
```
    Root Logging level passed to the MR app master.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_LOG_LEVEL
```
static final String DEFAULT_MR_AM_LOG_LEVEL
```
    See Also:
    Constant Field Values
  - MR_AM_NUM_PROGRESS_SPLITS
```
static final String MR_AM_NUM_PROGRESS_SPLITS
```
    The number of splits when reporting progress in MR
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_NUM_PROGRESS_SPLITS
```
static final int DEFAULT_MR_AM_NUM_PROGRESS_SPLITS
```
    See Also:
    Constant Field Values
  - MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT
```
static final String MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT
```
    Upper limit on the number of threads user to launch containers in the app master. Expect level config, you shouldn't be needing it in most cases.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT
```
static final int DEFAULT_MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT
```
    See Also:
    Constant Field Values
  - MR_AM_JOB_CLIENT_THREAD_COUNT
```
static final String MR_AM_JOB_CLIENT_THREAD_COUNT
```
    Number of threads to handle job client RPC requests.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_JOB_CLIENT_THREAD_COUNT
```
static final int DEFAULT_MR_AM_JOB_CLIENT_THREAD_COUNT
```
    See Also:
    Constant Field Values
  - MR_AM_JOB_CLIENT_PORT_RANGE
```
static final String MR_AM_JOB_CLIENT_PORT_RANGE
```
    Range of ports that the MapReduce AM can use when binding. Leave blank if you want all possible ports.
    
    See Also:
    Constant Field Values
  - MR_AM_JOB_NODE_BLACKLISTING_ENABLE
```
static final String MR_AM_JOB_NODE_BLACKLISTING_ENABLE
```
    Enable blacklisting of nodes in the job.
    
    See Also:
    Constant Field Values
  - MR_AM_IGNORE_BLACKLISTING_BLACKLISTED_NODE_PERECENT
```
static final String MR_AM_IGNORE_BLACKLISTING_BLACKLISTED_NODE_PERECENT
```
    Ignore blacklisting if a certain percentage of nodes have been blacklisted
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_IGNORE_BLACKLISTING_BLACKLISTED_NODE_PERCENT
```
static final int DEFAULT_MR_AM_IGNORE_BLACKLISTING_BLACKLISTED_NODE_PERCENT
```
    See Also:
    Constant Field Values
  - MR_AM_JOB_RECOVERY_ENABLE
```
static final String MR_AM_JOB_RECOVERY_ENABLE
```
    Enable job recovery.
    
    See Also:
    Constant Field Values
  - MR_AM_JOB_REDUCE_PREEMPTION_LIMIT
```
static final String MR_AM_JOB_REDUCE_PREEMPTION_LIMIT
```
    Limit on the number of reducers that can be preempted to ensure that at least one map task can run if it needs to. Percentage between 0.0 and 1.0
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_JOB_REDUCE_PREEMPTION_LIMIT
```
static final float DEFAULT_MR_AM_JOB_REDUCE_PREEMPTION_LIMIT
```
    See Also:
    Constant Field Values
  - JOB_AM_ACCESS_DISABLED
```
static final String JOB_AM_ACCESS_DISABLED
```
    AM ACL disabled.
    
    See Also:
    Constant Field Values
  - DEFAULT_JOB_AM_ACCESS_DISABLED
```
static final boolean DEFAULT_JOB_AM_ACCESS_DISABLED
```
    See Also:
    Constant Field Values
  - MR_AM_JOB_REDUCE_RAMPUP_UP_LIMIT
```
static final String MR_AM_JOB_REDUCE_RAMPUP_UP_LIMIT
```
    Limit reduces starting until a certain percentage of maps have finished. Percentage between 0.0 and 1.0
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_JOB_REDUCE_RAMP_UP_LIMIT
```
static final float DEFAULT_MR_AM_JOB_REDUCE_RAMP_UP_LIMIT
```
    See Also:
    Constant Field Values
  - MR_AM_TASK_ESTIMATOR
```
static final String MR_AM_TASK_ESTIMATOR
```
    Class used to estimate task resource needs.
    
    See Also:
    Constant Field Values
  - MR_AM_TASK_ESTIMATOR_SMOOTH_LAMBDA_MS
```
static final String MR_AM_TASK_ESTIMATOR_SMOOTH_LAMBDA_MS
```
    The lambda value in the smoothing function of the task estimator.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_TASK_ESTIMATOR_SMOOTH_LAMBDA_MS
```
static final long DEFAULT_MR_AM_TASK_ESTIMATOR_SMOOTH_LAMBDA_MS
```
    See Also:
    Constant Field Values
  - MR_AM_TASK_ESTIMATOR_EXPONENTIAL_RATE_ENABLE
```
static final String MR_AM_TASK_ESTIMATOR_EXPONENTIAL_RATE_ENABLE
```
    true if the smoothing rate should be exponential.
    
    See Also:
    Constant Field Values
  - MR_AM_TASK_LISTENER_THREAD_COUNT
```
static final String MR_AM_TASK_LISTENER_THREAD_COUNT
```
    The number of threads used to handle task RPC calls.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_TASK_LISTENER_THREAD_COUNT
```
static final int DEFAULT_MR_AM_TASK_LISTENER_THREAD_COUNT
```
    See Also:
    Constant Field Values
  - MR_AM_SCHEDULER_INTERVAL
```
static final String MR_AM_SCHEDULER_INTERVAL
```
    How often the AM should schedule assigning tasks with allocated containers.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_SCHEDULER_INTERVAL
```
static final long DEFAULT_MR_AM_SCHEDULER_INTERVAL
```
    See Also:
    Constant Field Values
  - MR_AM_TO_RM_HEARTBEAT_INTERVAL_MS
```
static final String MR_AM_TO_RM_HEARTBEAT_INTERVAL_MS
```
    How often the AM should send heartbeats to the RM.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_TO_RM_HEARTBEAT_INTERVAL_MS
```
static final int DEFAULT_MR_AM_TO_RM_HEARTBEAT_INTERVAL_MS
```
    See Also:
    Constant Field Values
  - MR_AM_TO_RM_WAIT_INTERVAL_MS
```
static final String MR_AM_TO_RM_WAIT_INTERVAL_MS
```
    If contact with RM is lost, the AM will wait MR_AM_TO_RM_WAIT_INTERVAL_MS milliseconds before aborting. During this interval, AM will still try to contact the RM.
    
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_TO_RM_WAIT_INTERVAL_MS
```
static final int DEFAULT_MR_AM_TO_RM_WAIT_INTERVAL_MS
```
    See Also:
    Constant Field Values
  - MR_AM_CREATE_JH_INTERMEDIATE_BASE_DIR
```
static final String MR_AM_CREATE_JH_INTERMEDIATE_BASE_DIR
```
    Boolean. Create the base dirs in the JobHistoryEventHandler Set to false for multi-user clusters. This is an internal config that is set by the MR framework and read by it too.
    
    See Also:
    Constant Field Values
  - MR_AM_HISTORY_MAX_UNFLUSHED_COMPLETE_EVENTS
```
static final String MR_AM_HISTORY_MAX_UNFLUSHED_COMPLETE_EVENTS
```
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_HISTORY_MAX_UNFLUSHED_COMPLETE_EVENTS
```
static final int DEFAULT_MR_AM_HISTORY_MAX_UNFLUSHED_COMPLETE_EVENTS
```
    See Also:
    Constant Field Values
  - MR_AM_HISTORY_JOB_COMPLETE_UNFLUSHED_MULTIPLIER
```
static final String MR_AM_HISTORY_JOB_COMPLETE_UNFLUSHED_MULTIPLIER
```
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_HISTORY_JOB_COMPLETE_UNFLUSHED_MULTIPLIER
```
static final int DEFAULT_MR_AM_HISTORY_JOB_COMPLETE_UNFLUSHED_MULTIPLIER
```
    See Also:
    Constant Field Values
  - MR_AM_HISTORY_COMPLETE_EVENT_FLUSH_TIMEOUT_MS
```
static final String MR_AM_HISTORY_COMPLETE_EVENT_FLUSH_TIMEOUT_MS
```
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_HISTORY_COMPLETE_EVENT_FLUSH_TIMEOUT_MS
```
static final long DEFAULT_MR_AM_HISTORY_COMPLETE_EVENT_FLUSH_TIMEOUT_MS
```
    See Also:
    Constant Field Values
  - MR_AM_HISTORY_USE_BATCHED_FLUSH_QUEUE_SIZE_THRESHOLD
```
static final String MR_AM_HISTORY_USE_BATCHED_FLUSH_QUEUE_SIZE_THRESHOLD
```
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_HISTORY_USE_BATCHED_FLUSH_QUEUE_SIZE_THRESHOLD
```
static final int DEFAULT_MR_AM_HISTORY_USE_BATCHED_FLUSH_QUEUE_SIZE_THRESHOLD
```
    See Also:
    Constant Field Values
  - MR_AM_ENV
```
static final String MR_AM_ENV
```
    See Also:
    Constant Field Values
  - MR_AM_ADMIN_USER_ENV
```
static final String MR_AM_ADMIN_USER_ENV
```
    See Also:
    Constant Field Values
  - MAPRED_MAP_ADMIN_JAVA_OPTS
```
static final String MAPRED_MAP_ADMIN_JAVA_OPTS
```
    See Also:
    Constant Field Values
  - MAPRED_REDUCE_ADMIN_JAVA_OPTS
```
static final String MAPRED_REDUCE_ADMIN_JAVA_OPTS
```
    See Also:
    Constant Field Values
  - DEFAULT_MAPRED_ADMIN_JAVA_OPTS
```
static final String DEFAULT_MAPRED_ADMIN_JAVA_OPTS
```
    See Also:
    Constant Field Values
  - MAPRED_ADMIN_USER_SHELL
```
static final String MAPRED_ADMIN_USER_SHELL
```
    See Also:
    Constant Field Values
  - DEFAULT_SHELL
```
static final String DEFAULT_SHELL
```
    See Also:
    Constant Field Values
  - MAPRED_ADMIN_USER_ENV
```
static final String MAPRED_ADMIN_USER_ENV
```
    See Also:
    Constant Field Values
  - DEFAULT_MAPRED_ADMIN_USER_ENV
```
static final String DEFAULT_MAPRED_ADMIN_USER_ENV
```
    See Also:
    Constant Field Values
  - WORKDIR
```
static final String WORKDIR
```
    See Also:
    Constant Field Values
  - OUTPUT
```
static final String OUTPUT
```
    See Also:
    Constant Field Values
  - HADOOP_WORK_DIR
```
static final String HADOOP_WORK_DIR
```
    See Also:
    Constant Field Values
  - STDOUT_LOGFILE_ENV
```
static final String STDOUT_LOGFILE_ENV
```
    See Also:
    Constant Field Values
  - STDERR_LOGFILE_ENV
```
static final String STDERR_LOGFILE_ENV
```
    See Also:
    Constant Field Values
  - JOB_SUBMIT_DIR
```
static final String JOB_SUBMIT_DIR
```
    See Also:
    Constant Field Values
  - JOB_CONF_FILE
```
static final String JOB_CONF_FILE
```
    See Also:
    Constant Field Values
  - JOB_JAR
```
static final String JOB_JAR
```
    See Also:
    Constant Field Values
  - JOB_SPLIT
```
static final String JOB_SPLIT
```
    See Also:
    Constant Field Values
  - JOB_SPLIT_METAINFO
```
static final String JOB_SPLIT_METAINFO
```
    See Also:
    Constant Field Values
  - APPLICATION_MASTER_CLASS
```
static final String APPLICATION_MASTER_CLASS
```
    See Also:
    Constant Field Values
  - TASK_LOG_DIR
```
static final String TASK_LOG_DIR
```
    The log directory for the containers
    
    See Also:
    Constant Field Values
  - TASK_LOG_SIZE
```
static final String TASK_LOG_SIZE
```
    See Also:
    Constant Field Values
  - MAPREDUCE_V2_CHILD_CLASS
```
static final String MAPREDUCE_V2_CHILD_CLASS
```
    See Also:
    Constant Field Values
  - APPLICATION_ATTEMPT_ID
```
static final String APPLICATION_ATTEMPT_ID
```
    See Also:
    Constant Field Values
  - MR_AM_SECURITY_SERVICE_AUTHORIZATION_TASK_UMBILICAL
```
static final String MR_AM_SECURITY_SERVICE_AUTHORIZATION_TASK_UMBILICAL
```
    See Also:
    Constant Field Values
  - MR_AM_SECURITY_SERVICE_AUTHORIZATION_CLIENT
```
static final String MR_AM_SECURITY_SERVICE_AUTHORIZATION_CLIENT
```
    See Also:
    Constant Field Values
  - MAPREDUCE_APPLICATION_CLASSPATH
```
static final String MAPREDUCE_APPLICATION_CLASSPATH
```
    CLASSPATH for all YARN MapReduce applications.
    
    See Also:
    Constant Field Values
  - DEFAULT_MAPREDUCE_APPLICATION_CLASSPATH
```
static final String[] DEFAULT_MAPREDUCE_APPLICATION_CLASSPATH
```
    Default CLASSPATH for all YARN MapReduce applications.
  - MR_AM_MAX_ATTEMPTS
```
static final String MR_AM_MAX_ATTEMPTS
```
    See Also:
    Constant Field Values
  - DEFAULT_MR_AM_MAX_ATTEMPTS
```
static final int DEFAULT_MR_AM_MAX_ATTEMPTS
```
    See Also:
    Constant Field Values
  - HS_DELEGATION_TOKEN_REQUIRED
```
@InterfaceAudience.Private
static final String HS_DELEGATION_TOKEN_REQUIRED
```
    See Also:
    Constant Field Values
  - MROUTPUT_FILE_NAME_PREFIX
```
static final String MROUTPUT_FILE_NAME_PREFIX
```
    See Also:
    Constant Field Values
  - MRR_INTERMEDIATE_STAGES
```
static final String MRR_INTERMEDIATE_STAGES
```
    See Also:
    Constant Field Values
  - MRR_INTERMEDIATE_STAGE_PREFIX
```
static final String MRR_INTERMEDIATE_STAGE_PREFIX
```
    See Also:
    Constant Field Values
  - MRR_VERTEX_PREFIX
```
static final String MRR_VERTEX_PREFIX
```
    See Also:
    Constant Field Values
  - VERTEX_NAME
```
static final String VERTEX_NAME
```
    See Also:
    Constant Field Values
  - MR_TEZ_SPLITS_VIA_EVENTS
```
static final String MR_TEZ_SPLITS_VIA_EVENTS
```
    See Also:
    Constant Field Values
  - MR_TEZ_SPLITS_VIA_EVENTS_DEFAULT
```
static final boolean MR_TEZ_SPLITS_VIA_EVENTS_DEFAULT
```
    See Also:
    Constant Field Values
  - MR_TEZ_INPUT_INITIALIZER_SERIALIZE_EVENT_PAYLOAD
```
static final String MR_TEZ_INPUT_INITIALIZER_SERIALIZE_EVENT_PAYLOAD
```
    See Also:
    Constant Field Values
  - MR_TEZ_INPUT_INITIALIZER_SERIALIZE_EVENT_PAYLOAD_DEFAULT
```
static final boolean MR_TEZ_INPUT_INITIALIZER_SERIALIZE_EVENT_PAYLOAD_DEFAULT
```
    See Also:
    Constant Field Values

Interface MRJobConfig

Field Summary

Field Detail

MR_TEZ_PREFIX

INPUT_FORMAT_CLASS_ATTR

NEW_API_MAPPER_CONFIG

NEW_API_REDUCER_CONFIG

MAP_CLASS_ATTR

COMBINE_CLASS_ATTR

REDUCE_CLASS_ATTR

OUTPUT_FORMAT_CLASS_ATTR

PARTITIONER_CLASS_ATTR

SETUP_CLEANUP_NEEDED

TASK_CLEANUP_NEEDED

JAR

ID

JOB_NAME

JAR_UNPACK_PATTERN

USER_NAME

PRIORITY

QUEUE_NAME

JVM_NUMTASKS_TORUN

SPLIT_FILE

SPLIT_METAINFO_MAXSIZE

DEFAULT_SPLIT_METAINFO_MAXSIZE

NUM_MAPS

MAX_TASK_FAILURES_PER_TRACKER

COMPLETED_MAPS_FOR_REDUCE_SLOWSTART

NUM_REDUCES

SKIP_RECORDS

SKIP_OUTDIR

JOB_LOCAL_DIR

OUTPUT_KEY_CLASS

OUTPUT_VALUE_CLASS

KEY_COMPARATOR

GROUP_COMPARATOR_CLASS

WORKING_DIR

CLASSPATH_ARCHIVES

CLASSPATH_FILES

CACHE_FILES

CACHE_ARCHIVES

CACHE_FILES_SIZES

CACHE_ARCHIVES_SIZES

CACHE_LOCALFILES

CACHE_LOCALARCHIVES

CACHE_FILE_TIMESTAMPS

CACHE_ARCHIVES_TIMESTAMPS

CACHE_FILE_VISIBILITIES

CACHE_ARCHIVES_VISIBILITIES

CACHE_SYMLINK

USER_LOG_RETAIN_HOURS

MAPREDUCE_JOB_USER_CLASSPATH_FIRST

IO_SORT_FACTOR

IO_SORT_MB

INDEX_CACHE_MEMORY_LIMIT

PRESERVE_FAILED_TASK_FILES

PRESERVE_FILES_PATTERN

TASK_TEMP_DIR

TASK_DEBUGOUT_LINES

RECORDS_BEFORE_PROGRESS

SKIP_START_ATTEMPTS

TASK_ATTEMPT_ID

TASK_ISMAP

TASK_PARTITION

TASK_PROFILE

TASK_PROFILE_PARAMS

NUM_MAP_PROFILES

NUM_REDUCE_PROFILES

TASK_MAP_PROFILE_PARAMS

TASK_REDUCE_PROFILE_PARAMS

TASK_TIMEOUT

TASK_TIMEOUT_CHECK_INTERVAL_MS

TASK_ID

TASK_OUTPUT_DIR

TASK_USERLOG_LIMIT

MAP_SORT_SPILL_PERCENT

MAP_INPUT_FILE

MAP_INPUT_PATH

MAP_INPUT_START

MAP_MEMORY_MB