Post by Admin on Mar 14, 2014 12:37:26 GMT
Minimally an Hadoop application would have following components.
a) Input location of data
b) Output location of processed data.
c) A map task.
d) A reduced task.
e) Job configuration
The Hadoop job client then submits the job (jar/executable etc.) and configuration
to the JobTracker which then assumes the responsibility of distributing the
software/configuration to the slaves, scheduling tasks and monitoring them,
providing status and diagnostic information to the job-client.
a) Input location of data
b) Output location of processed data.
c) A map task.
d) A reduced task.
e) Job configuration
The Hadoop job client then submits the job (jar/executable etc.) and configuration
to the JobTracker which then assumes the responsibility of distributing the
software/configuration to the slaves, scheduling tasks and monitoring them,
providing status and diagnostic information to the job-client.