FEATURE: Randomness Garuentees

[Parsonswy]

PKG: model-data-generator

When load testing I was able to consistently get script failures because of UNQ key violations on email columns, though I suspect this is an issue for more than just the email datatype. I was attempting to generate 100,000 users, but was not able to reliably get over 20,000.

I think the value-space for many of the data-generates needs to be widened, and perhaps more stringent checks put in place to ensure that inserted data will be unique. This is especially relevant if the script crashed during a previous populate attempt and there are existing values in the database. The script seems to assume that the database is empty, but if I am trying to generate 10s of thousands of values, I don't want to have to TRUNCATE tables to add more data because it can take several minutes to an hour to do this.