THAT is what we needed - thanks Chris for giving a detailed description of the cause, resolution and follow-up. No-one likes writing these things because they are basically detailing your own failures, so Chris (and Google) deserve kudos for releasing this.
One of the frustrating things about Appengine is the paucity of information about it. There is no reliable information about it's architecture, the number of real applications that use it, or even the requests per second it processes. It is easy to imagine that it actually runs on a couple of boxes under someone's desk, and that this incident was caused by the cleaner knocking the power cord. So in fronting up about the cause of the outage, Google have actually reassured me about their whole system. Now I know there are serious monitoring systems in place, real people (SREs) onsite at 6:44am, backup datacentres, and some serious decision-making skills in charge (recognising data consistency is more important that uptime). You have shown that you followed through with a detailed incident analysis and have learned more about your system - and how it could be better. A previous poster mentions 99% uptime - I don't know how accurate this is, but to some extent I don't care if I know Google is learning from each outage. That means uptime will trend in the right direction. Please give us similarly detailed post-mortems in the future. We've trusted you with our apps, please trust us with more information. It'll also go a long way to answering the accusations of opaqueness surrounding appengine - the Register's jibes about the "Chocolate Factory" are close to the bone. And I'd love to know how many requests per second you process... --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
