Reltio Connect

Is it possible that JSON generator jar and the Dataload jar provided by Reltio can read files present in AWS S3 bucket / Azure Data Lake?
Mean is there any  OOB supports AWS S3 endpoint (reading directly from S3 path) or reading directly from Azure DataLake?
In that case we do not need any EC2 instance.
Can anyone please confirm?

Hi,
You are referring to the additional utilities Reltio provides as templates that can be used for your implementations. 
https://docs.reltio.com/addonutilities/aboutaddons.html

Currently, these utilities show examples of reading a file from AWS S3 and loading them into Reltio using the APIs. 

Have you looked at the Data loader utility that natively supports Azure blob storage? 
https://docs.reltio.com/dataloader/loadingdata.html

This is a supported functionality of the Reltio platform. 

The additional utilities are " provided to you free of charge, and on an "AS IS" basis, without any technical support or warranty of any kind from Reltio including, without limitation, a warranty of merchantability, fitness for a particular purpose and non-infringement.". 
So, if you want to extend that, you can do it. In that case, you can use the utility as a template or a reference implementation. 

Can we use the JSON generator JAR to fetch data from Azure Data Lake Gen2?
My intension is to convert a csv file which is located in ADLS to JSON and  then load the JSON into Reltio.

Hi,
No, the JSON generator jar only supports reading for AWS S3 bucket out of the box. 
You will have to modify it to read from Azure.