I'm unable to find the VirtualBox .OVA v2.3.1 copy on Hortonworks website. Could someone please direct me or paste the link to the image?
There was no 2.3.1. The Versions moved from 2.3.0 to 2.3.2 and 2.3.4. The newest sandbox is 2.3.2. If u searching for oder versions you can find them in the archive .
Hortonworks does not create a sandbox for every new version. Only if it provides major new functions.
UPDATE: All available sandboxes can be found here. According to Hortonworks only prior versions are archived. So even if a 2.3.1 Version existed (which I think doesn't), it is no longer available.