Database Reference
In-Depth Information
The application master also sends an HTTP job notification if it is configured to do so.
This can be configured by clients wishing to receive callbacks, via the
mapreduce.job.end-notification.url
property.
Finally, on job completion, the application master and the task containers clean up their
working state (so intermediate output is deleted), and the
OutputCommitter
's
com-
mitJob()
method is called. Job information is archived by the job history server to en-
able later interrogation by users if desired.
