Everyone asking about how to setup Selenium GRID. We were using Visual Studio to execute script which was kind of time consuming. It used to take minium 1.5 hours after every build. After that I implemented GRID and divided tests into groups based on category and ran in parallel and achieved 66% improvement. Not bad ;).
If you have any question, I will try to answer. If you are using webdriver and want to use grid then you need to use remote webdriver instead. Every thing will be the same.
Remember: If you try to use two instances of Firefox execution in parallel in same machine , you won’t be able to but chrome will work.
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