Since updating to Circle 2.0 we often see an error towards the end of many of our test runs
Failed to decode response from marionette (Selenium::WebDriver::Error::UnknownError)
Typically that container then stops running any more tests after that point. We currently pay for 18 containers but usually only run 9 at one time. Spreading some 100 or so tests across the 9 containers.
From much googling it appears to be a memory problem. I understand our containers currently have a 4GB limit. Is it possible for to increase the limit to 8gb or 16gb to see if it fixes the issues?