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GeekInterview.com > Interview Questions > Data Warehousing > Abinitio
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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. |
| October 10, 2008 01:47:10 |
#2 |
| ravula sudheer |
Member Since: October 2008 Total Comments: 6 |
RE: Phase verses Checkpoint
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Phase is a stage in a graph that runs before staratup of next stage.
Check point is intermediate stoping point of the graph to save guard against failure.
We can arrange phase without check points.
We dont assign checkpoint without phases.
Thanku
sudheer |
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