TaskAttempt

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Emilio Coppa edited this page Apr 4, 2014 · 16 revisions

###Apache Hadoop (MapReduce): Task Attempt

Table of contents:

Finite State Machine
NEW => UNASSIGNED [TA_SCHEDULE]
UNASSIGNED => ASSIGNED [TA_ASSIGNED]
ASSIGNED => RUNNING [TA_CONTAINER_LAUNCHED]
RUNNING => SUCCESS_CONTAINER_CLEANUP [TA_DONE]
COMMIT_PENDING => SUCCESS_CONTAINER_CLEANUP [TA_DONE]
SUCCESS_CONTAINER_CLEANUP => SUCCEEDEED [TA_CONTAINER_CLEANED]

Finite State Machine

Hadoop (MapReduce): Task Attempt - Finite State Machine

NEW => UNASSIGNED [TA_SCHEDULE]

Hadoop (MapReduce): Task Attempt - NEW => UNASSIGNED - TA_SCHEDULE

UNASSIGNED => ASSIGNED [TA_ASSIGNED]

Hadoop (MapReduce): Task Attempt - UNASSIGNED => ASSIGNED - TA_ASSIGNED

ASSIGNED => RUNNING [TA_CONTAINER_LAUNCHED]

Hadoop (MapReduce): Task Attempt - ASSIGNED => RUNNING - TA_CONTAINER_LAUNCHED

RUNNING => SUCCESS_CONTAINER_CLEANUP [TA_DONE], COMMIT_PENDING => SUCCESS_CONTAINER_CLEANUP [TA_DONE]

Hadoop (MapReduce): Task Attempt - RUNNING => SUCCESS_CONTAINER_CLEANUP - TA_DONE - COMMIT_PENDING => SUCCESS_CONTAINER_CLEANUP

SUCCESS_CONTAINER_CLEANUP => SUCCEEDEED [TA_CONTAINER_CLEANED]

Hadoop (MapReduce): Task Attempt - SUCCESS_CONTAINER_CLEANUP => SUCCEEDEED - TA_CONTAINER_CLEANED