I am not sure what is your objective.
But the difference between HADOOP and SAP BW Nearline is -
- HADOOP - it is used to fast processing of data via different algorithms like "MAPREDUCE". It is not used to store the data.
- SAP BW NLS - Stores the data and it has no relation with respect to faster processing.
Thanks Aditya for your response. Of course HADOOP uses HFDS and MadReduce as key technolgies. My question was more towards how Hadoop relates with Nearline or does it have any relation to SAP BW Nearline.
This question was raised during one of the client discussions where it was asked if Hadoop can be an alternative for Nearline. The context of this question is based on this.
Also in recent SAP landscape diagrams NLS is integrated with Hadoop.
Informatica Nearline stores the data in our columnar database, called Data Vault (formerly known ad File Archive Service). The data files create can be stored in Hadoop HDFS.
It does not mean you can query the data directly from Hadoop using PIG or HIVE. The query will continue to come from SAP BW, through the Nearline interface and to Data Vault, where the query is executed and the data required is pulled on the fly from the data files residing in HDFS.
Hope that is clear.