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Master
macro state, that take care
of jobs managementMapper
.Mapper
.Context
passed on to the Mapper
implementations.Level
for the map task.
Level
for the reduce task.
JobConf.MAPRED_MAP_TASK_ENV
or
JobConf.MAPRED_REDUCE_TASK_ENV
JobConf.MAPRED_MAP_TASK_JAVA_OPTS
or
JobConf.MAPRED_REDUCE_TASK_JAVA_OPTS
JobConf.MAPRED_JOB_MAP_MEMORY_MB_PROPERTY
and
JobConf.MAPRED_JOB_REDUCE_MEMORY_MB_PROPERTY
JobConf.MAPRED_MAP_TASK_ULIMIT
or
JobConf.MAPRED_REDUCE_TASK_ULIMIT
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