| |
GeekInterview.com > Interview Questions > Data Warehousing > Abinitio
| Print | |
Question: Phase verses Checkpoint
Answer: Difference between a phase and checkpoint as far as i know it something related with how temporary files containing the data landed to disk is handled.
that is phases are used to break up a graph so that it does not use up all the memory , it reduce the no of component running in parallel hence improves the performances (used for performance fine tuning, by managing the resource in perfect manner)
Check points are used for the purpose of recovery. |
| April 04, 2009 08:36:30 |
#6 |
| annegrace1 |
Member Since: August 2008 Total Comments: 11 |
RE: Phase verses Checkpoint
|
Phase is breaking the graph into different block. It create some temp file while running and deletes it once the completion is done.
Checkpoint is used for recovery purpose. when the graph is interrupted, instead of rerunning the graph from the start. the excution starts from the stop where it is stopeed |
| |
Back To Question | |
