What is the maximum number of concurrent request using DSS api for vbd file downloads

govardhan.yernagula

Hi,

We are using DSS Rest API's for downloading the vbd files. We currently download vbd files and instrument files for 17 venues, so total 34 files using 17 threads. Sometimes we are getting -1 for the http status code, which might be happening due to no valid http response from DSS.

Just wanted to understand what is the limit on the DSS side for vbd and instrument file downloads if we use a single account.

Can anyone point us to what could be the possible issue here .

We are runnnig this on a 16 core ec2 machine.

Thanks

zoya faberov

Hello @govardhan.yernagula,

Four concurrent downloads. For a more extensive view on limits as well as best practices to design efficient downloads please refer to Best Practices And Limits Guide

govardhan.yernagula

https://community.developers.refinitiv.com/discussion/comment/44193#Comment_44193

Hi Zoya,

Thanks for the response.

Do we have any working Java code examples for downloading vbd directly from aws as documented in the tick history guide. There seems to be no limit on the direct downloads from aws.

Christiaan Meihsl

https://community.developers.refinitiv.com/discussion/comment/44280#Comment_44280

@govardhan.yernagula, we currently don't have any VBD examples in Java. We have one in HTTP inside Postman, and one in C# that uses AWS.

govardhan.yernagula

https://community.developers.refinitiv.com/discussion/comment/44316#Comment_44316

Hi Christiaan/Zoya,

We have reduced the concurrent downloads to 3 and still see the invalid response from DSS. We are not finding any more error logs to debug this.

What is the best way to reach out to somebody from DSS , who can help us with this.

zoya faberov

Hello @govardhan.yernagula,

Please check with DSS Best Practices to make sure you are within recommended on VBD retrival.

Please make sure you are not requesting custom extractions on the same account in parallel. 4 is a total on all requests, not VBD only,

If you find the behavior not as expected:

"You can have up to four extraction downloads in progress at one time. This total applies to any
combination of custom reporting and Venue by Day downloads, via any combination of the REST API and
via the GUI.

the best way is to open a support case by going on

my refinitiv.com

Get Support -> Product & Contenty -> Datascope

Include the complete info on your requests issued, your id, times, etc.

Thanks,

-AHS