Hadoop Internals


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Task


Table of contents:

Finite State Machine

Hadoop (MapReduce): Task - Finite State Machine

NEW => SCHEDULED [T_SCHEDULE]

Hadoop (MapReduce): Task - NEW => SCHEDULED - T_SCHEDULE

SCHEDULED => RUNNING [T_ATTEMPT_LAUNCHED]

Hadoop (MapReduce): Task - SCHEDULED => RUNNING - T_ATTEMPT_LAUNCHED

RUNNING => SUCCEDEED [T_ATTEMPT_SUCCEDEED]

Hadoop (MapReduce): Task - RUNNING => SUCCEDEED - T_ATTEMPT_SUCCEDEED