what is difference between chk point n phase.Say im loading
a file (containig 1 lakh records) and my
graph fails after loading 50,000th record.What is the
advantage of using check point in this case.
Will i be able to start from 51000th record.

Answer Posted / ramnana

Phases divide the graph in to parts and executes one after the other to reduce the complexity and encounter deadlocks.
check points are like intermediate nodes which saves the data in to the disk permanently.We have to manual delete the data if we have checkpoints.If we have a successful checkpoint we can always roll back and rerun the graph from that point in case of a failure.

Is This Answer Correct ?    8 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What will be the output when a file with 0 records is connected as input to a reformat and an output file? Note that in reformat we have assigned hardcoded values to output columns.

529


What are the types of data processing you are familiar with?

713


How does the bre work with the co>operating system?

613


Describe how you would ensure that database object definitions (tables, indices, constraints, triggers, users, logins, connection options, and server options etc)are consistent and repeatable between multiple database instances (i.e.: A test and production copy of a database)?

670


What is sandbox?

726






Explain batch processing in ab initio?

927


What happens when we provide null key to sort, merge and pbks in Abinitio ?

855


What is the importance of eme in abinitio?

685


What is ab initio enterprise meta>environment (eme)?

905


How to process records in batches like 1-20 records in first execution and 21-40 records in second run.. so on

482


What the difference between “look-up” file and “look is up” in abinitio?

845


Where $mpjret is used in ab-initio?

693


What is a deadlock and how it occurs?

679


What are the key elements of a data processing system?

697


What is the core of co> operating system?

649