So, I finally made time today to progress the 5 second timeout effort a bit more today.
As of now, the *default* hard timeout for LP pages is 5 seconds. Pages with a 99th percentile larger than that have had a higher timeout set: 9 seconds, if the page's 99th percentile render time was over 9 seconds Or the nearest second higher than the pages 99th percentile render time. Specifically, a pageid with a 99th percentile render time of 6.1 seconds would end up with a 7s hard timeout. No change in developer behaviour is needed - this just enforces the hard timeout portion of the previously agreed upon decision: that new pages would be held to our target performance of 1s for their 99th percentile render time, with a hard timeout of 5 seconds. The way this was done, was to record the page ids for all the slow page ids; the DB request to retrieve the 100 odd extra rules takes 3ms, and the render time for a basic page was not impaired on qastaging, so I don't expect any fallout. This is also good news for folk with lots of feature flags / rules: the system is scalable well beyond how we are using it today. Cheers, Rob _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : launchpad-dev@lists.launchpad.net Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
