JTConfig (hadoop-mapreduce-client-core 2.7.4 API)

All Superinterfaces:

MRConfig
```
@InterfaceAudience.Private
 @InterfaceStability.Evolving
public interface JTConfig
extends MRConfig
```
Place holder for JobTracker server-level configuration. The keys should have "mapreduce.jobtracker." as the prefix

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`JT_AVG_BLACKLIST_THRESHOLD`
`static String`	`JT_HEARTBEAT_INTERVAL_MIN`
`static int`	`JT_HEARTBEAT_INTERVAL_MIN_DEFAULT`
`static String`	`JT_HEARTBEATS_IN_SECOND`
`static String`	`JT_HEARTBEATS_SCALING_FACTOR`
`static String`	`JT_HOSTS_EXCLUDE_FILENAME`
`static String`	`JT_HOSTS_FILENAME`
`static String`	`JT_HTTP_ADDRESS`
`static String`	`JT_INSTRUMENTATION`
`static String`	`JT_IPC_ADDRESS`
`static String`	`JT_IPC_HANDLER_COUNT`
`static String`	`JT_JOBHISTORY_BLOCK_SIZE`
`static String`	`JT_JOBHISTORY_CACHE_SIZE`
`static String`	`JT_JOBHISTORY_COMPLETED_LOCATION`
`static String`	`JT_JOBHISTORY_LOCATION`
`static String`	`JT_JOBHISTORY_MAXAGE`
`static String`	`JT_JOBHISTORY_TASKPROGRESS_NUMBER_SPLITS`
`static String`	`JT_JOBINIT_THREADS`
`static String`	`JT_KEYTAB_FILE`
`static String`	`JT_MAX_JOB_SPLIT_METAINFO_SIZE`
`static String`	`JT_MAX_MAPMEMORY_MB`
`static String`	`JT_MAX_REDUCEMEMORY_MB`
`static String`	`JT_MAX_TRACKER_BLACKLISTS`
`static String`	`JT_PERSIST_JOBSTATUS`
`static String`	`JT_PERSIST_JOBSTATUS_DIR`
`static String`	`JT_PERSIST_JOBSTATUS_HOURS`
`static String`	`JT_PLUGINS`
`static String`	`JT_RESTART_ENABLED`
`static String`	`JT_RETIREJOB_CACHE_SIZE`
`static String`	`JT_RETIREJOBS`
`static String`	`JT_RUNNINGTASKS_PER_JOB`
`static String`	`JT_STAGING_AREA_ROOT`
`static String`	`JT_SUPERGROUP` Deprecated. Use MR_SUPERGROUP instead
`static String`	`JT_SYSTEM_DIR`
`static String`	`JT_TASK_ALLOC_PAD_FRACTION`
`static String`	`JT_TASK_SCHEDULER`
`static String`	`JT_TASKCACHE_LEVELS`
`static String`	`JT_TASKS_PER_JOB`
`static String`	`JT_TRACKER_EXPIRY_INTERVAL`
`static String`	`JT_USER_NAME`
`static String`	`PRIVATE_ACTIONS_KEY`
`static String`	`SHUFFLE_EXCEPTION_MSG_REGEX`
`static String`	`SHUFFLE_EXCEPTION_STACK_REGEX`

Fields inherited from interface org.apache.hadoop.mapreduce.MRConfig
CLASSIC_FRAMEWORK_NAME, DEFAULT_MAPRED_IFILE_READAHEAD, DEFAULT_MAPRED_IFILE_READAHEAD_BYTES, DEFAULT_MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM, DEFAULT_MAPREDUCE_MINICLUSTER_CONTROL_RESOURCE_MONITORING, DELEGATION_KEY_UPDATE_INTERVAL_DEFAULT, DELEGATION_KEY_UPDATE_INTERVAL_KEY, DELEGATION_TOKEN_MAX_LIFETIME_DEFAULT, DELEGATION_TOKEN_MAX_LIFETIME_KEY, DELEGATION_TOKEN_RENEW_INTERVAL_DEFAULT, DELEGATION_TOKEN_RENEW_INTERVAL_KEY, FRAMEWORK_NAME, LOCAL_DIR, LOCAL_FRAMEWORK_NAME, MAPMEMORY_MB, MAPRED_IFILE_READAHEAD, MAPRED_IFILE_READAHEAD_BYTES, MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM, MAPREDUCE_MINICLUSTER_CONTROL_RESOURCE_MONITORING, MASTER_ADDRESS, MASTER_USER_NAME, MAX_BLOCK_LOCATIONS_DEFAULT, MAX_BLOCK_LOCATIONS_KEY, MR_ACLS_ENABLED, MR_ADMINS, MR_SUPERGROUP, PROGRESS_STATUS_LEN_LIMIT_DEFAULT, PROGRESS_STATUS_LEN_LIMIT_KEY, REDUCEMEMORY_MB, RESOURCE_CALCULATOR_PROCESS_TREE, SHUFFLE_CONSUMER_PLUGIN, SHUFFLE_SSL_ENABLED_DEFAULT, SHUFFLE_SSL_ENABLED_KEY, STATIC_RESOLUTIONS, TASK_LOCAL_OUTPUT_CLASS, TEMP_DIR, YARN_FRAMEWORK_NAME

- Field Detail
  - JT_IPC_ADDRESS
```
static final String JT_IPC_ADDRESS
```
    See Also:
    
    Constant Field Values
  - JT_HTTP_ADDRESS
```
static final String JT_HTTP_ADDRESS
```
    See Also:
    
    Constant Field Values
  - JT_IPC_HANDLER_COUNT
```
static final String JT_IPC_HANDLER_COUNT
```
    See Also:
    
    Constant Field Values
  - JT_RESTART_ENABLED
```
static final String JT_RESTART_ENABLED
```
    See Also:
    
    Constant Field Values
  - JT_TASK_SCHEDULER
```
static final String JT_TASK_SCHEDULER
```
    See Also:
    
    Constant Field Values
  - JT_INSTRUMENTATION
```
static final String JT_INSTRUMENTATION
```
    See Also:
    
    Constant Field Values
  - JT_TASKS_PER_JOB
```
static final String JT_TASKS_PER_JOB
```
    See Also:
    
    Constant Field Values
  - JT_HEARTBEATS_IN_SECOND
```
static final String JT_HEARTBEATS_IN_SECOND
```
    See Also:
    
    Constant Field Values
  - JT_HEARTBEATS_SCALING_FACTOR
```
static final String JT_HEARTBEATS_SCALING_FACTOR
```
    See Also:
    
    Constant Field Values
  - JT_HEARTBEAT_INTERVAL_MIN
```
static final String JT_HEARTBEAT_INTERVAL_MIN
```
    See Also:
    
    Constant Field Values
  - JT_HEARTBEAT_INTERVAL_MIN_DEFAULT
```
static final int JT_HEARTBEAT_INTERVAL_MIN_DEFAULT
```
    See Also:
    
    Constant Field Values
  - JT_PERSIST_JOBSTATUS
```
static final String JT_PERSIST_JOBSTATUS
```
    See Also:
    
    Constant Field Values
  - JT_PERSIST_JOBSTATUS_HOURS
```
static final String JT_PERSIST_JOBSTATUS_HOURS
```
    See Also:
    
    Constant Field Values
  - JT_PERSIST_JOBSTATUS_DIR
```
static final String JT_PERSIST_JOBSTATUS_DIR
```
    See Also:
    
    Constant Field Values
  - JT_SUPERGROUP
```
@Deprecated
static final String JT_SUPERGROUP
```
    Deprecated. Use MR_SUPERGROUP instead
    
    See Also:
    
    Constant Field Values
  - JT_RETIREJOBS
```
static final String JT_RETIREJOBS
```
    See Also:
    
    Constant Field Values
  - JT_RETIREJOB_CACHE_SIZE
```
static final String JT_RETIREJOB_CACHE_SIZE
```
    See Also:
    
    Constant Field Values
  - JT_TASKCACHE_LEVELS
```
static final String JT_TASKCACHE_LEVELS
```
    See Also:
    
    Constant Field Values
  - JT_TASK_ALLOC_PAD_FRACTION
```
static final String JT_TASK_ALLOC_PAD_FRACTION
```
    See Also:
    
    Constant Field Values
  - JT_JOBINIT_THREADS
```
static final String JT_JOBINIT_THREADS
```
    See Also:
    
    Constant Field Values
  - JT_TRACKER_EXPIRY_INTERVAL
```
static final String JT_TRACKER_EXPIRY_INTERVAL
```
    See Also:
    
    Constant Field Values
  - JT_RUNNINGTASKS_PER_JOB
```
static final String JT_RUNNINGTASKS_PER_JOB
```
    See Also:
    
    Constant Field Values
  - JT_HOSTS_FILENAME
```
static final String JT_HOSTS_FILENAME
```
    See Also:
    
    Constant Field Values
  - JT_HOSTS_EXCLUDE_FILENAME
```
static final String JT_HOSTS_EXCLUDE_FILENAME
```
    See Also:
    
    Constant Field Values
  - JT_JOBHISTORY_CACHE_SIZE
```
static final String JT_JOBHISTORY_CACHE_SIZE
```
    See Also:
    
    Constant Field Values
  - JT_JOBHISTORY_BLOCK_SIZE
```
static final String JT_JOBHISTORY_BLOCK_SIZE
```
    See Also:
    
    Constant Field Values
  - JT_JOBHISTORY_COMPLETED_LOCATION
```
static final String JT_JOBHISTORY_COMPLETED_LOCATION
```
    See Also:
    
    Constant Field Values
  - JT_JOBHISTORY_LOCATION
```
static final String JT_JOBHISTORY_LOCATION
```
    See Also:
    
    Constant Field Values
  - JT_JOBHISTORY_TASKPROGRESS_NUMBER_SPLITS
```
static final String JT_JOBHISTORY_TASKPROGRESS_NUMBER_SPLITS
```
    See Also:
    
    Constant Field Values
  - JT_AVG_BLACKLIST_THRESHOLD
```
static final String JT_AVG_BLACKLIST_THRESHOLD
```
    See Also:
    
    Constant Field Values
  - JT_SYSTEM_DIR
```
static final String JT_SYSTEM_DIR
```
    See Also:
    
    Constant Field Values
  - JT_STAGING_AREA_ROOT
```
static final String JT_STAGING_AREA_ROOT
```
    See Also:
    
    Constant Field Values
  - JT_MAX_TRACKER_BLACKLISTS
```
static final String JT_MAX_TRACKER_BLACKLISTS
```
    See Also:
    
    Constant Field Values
  - JT_JOBHISTORY_MAXAGE
```
static final String JT_JOBHISTORY_MAXAGE
```
    See Also:
    
    Constant Field Values
  - JT_MAX_MAPMEMORY_MB
```
static final String JT_MAX_MAPMEMORY_MB
```
    See Also:
    
    Constant Field Values
  - JT_MAX_REDUCEMEMORY_MB
```
static final String JT_MAX_REDUCEMEMORY_MB
```
    See Also:
    
    Constant Field Values
  - JT_MAX_JOB_SPLIT_METAINFO_SIZE
```
static final String JT_MAX_JOB_SPLIT_METAINFO_SIZE
```
    See Also:
    
    Constant Field Values
  - JT_USER_NAME
```
static final String JT_USER_NAME
```
    See Also:
    
    Constant Field Values
  - JT_KEYTAB_FILE
```
static final String JT_KEYTAB_FILE
```
    See Also:
    
    Constant Field Values
  - PRIVATE_ACTIONS_KEY
```
static final String PRIVATE_ACTIONS_KEY
```
    See Also:
    
    Constant Field Values
  - JT_PLUGINS
```
static final String JT_PLUGINS
```
    See Also:
    
    Constant Field Values
  - SHUFFLE_EXCEPTION_STACK_REGEX
```
static final String SHUFFLE_EXCEPTION_STACK_REGEX
```
    See Also:
    
    Constant Field Values
  - SHUFFLE_EXCEPTION_MSG_REGEX
```
static final String SHUFFLE_EXCEPTION_MSG_REGEX
```
    See Also:
    
    Constant Field Values

Interface JTConfig

Field Summary

Fields inherited from interface org.apache.hadoop.mapreduce.MRConfig

Field Detail

JT_IPC_ADDRESS

JT_HTTP_ADDRESS

JT_IPC_HANDLER_COUNT

JT_RESTART_ENABLED

JT_TASK_SCHEDULER

JT_INSTRUMENTATION

JT_TASKS_PER_JOB

JT_HEARTBEATS_IN_SECOND

JT_HEARTBEATS_SCALING_FACTOR

JT_HEARTBEAT_INTERVAL_MIN

JT_HEARTBEAT_INTERVAL_MIN_DEFAULT

JT_PERSIST_JOBSTATUS

JT_PERSIST_JOBSTATUS_HOURS

JT_PERSIST_JOBSTATUS_DIR

JT_SUPERGROUP

JT_RETIREJOBS

JT_RETIREJOB_CACHE_SIZE

JT_TASKCACHE_LEVELS

JT_TASK_ALLOC_PAD_FRACTION

JT_JOBINIT_THREADS

JT_TRACKER_EXPIRY_INTERVAL

JT_RUNNINGTASKS_PER_JOB

JT_HOSTS_FILENAME

JT_HOSTS_EXCLUDE_FILENAME

JT_JOBHISTORY_CACHE_SIZE

JT_JOBHISTORY_BLOCK_SIZE

JT_JOBHISTORY_COMPLETED_LOCATION

JT_JOBHISTORY_LOCATION

JT_JOBHISTORY_TASKPROGRESS_NUMBER_SPLITS

JT_AVG_BLACKLIST_THRESHOLD

JT_SYSTEM_DIR

JT_STAGING_AREA_ROOT

JT_MAX_TRACKER_BLACKLISTS

JT_JOBHISTORY_MAXAGE

JT_MAX_MAPMEMORY_MB

JT_MAX_REDUCEMEMORY_MB

JT_MAX_JOB_SPLIT_METAINFO_SIZE

JT_USER_NAME

JT_KEYTAB_FILE

PRIVATE_ACTIONS_KEY

JT_PLUGINS

SHUFFLE_EXCEPTION_STACK_REGEX

SHUFFLE_EXCEPTION_MSG_REGEX