Google had a lot of trouble with their original database, known as M/S. It was responsible for the downtime you heard about.
So they invented a new database, known as HR, and it has never gone down since they released it. So if you use HR (which is the default for new projects), history suggests that you will not see outages. But be realistic: Everything goes down. Everything. There is no 100% uptime guarantee. Google is promising 99.95% which means they are OK with 438 hours of downtime a year. And that's only a soft promise (like most SLAs, your recourse is negligible if you suffer losses because of their failures). I'm quite sure that GAE on HR has better uptime than I could achieve with anything I could build and manage. On Oct 8, 2011, at 11:42 AM, ahmed adel wrote: > What do you mean by HR? > > What I meant is , If I have application hosted in Google Apps Engine , > will it be affected in the future for example due to data center crash > like what happened before. > > We will need this application be available starting from 7 AM to 1 PM > Cairo time. because of this I am asking about the crash time in Google > Apps engine. > > I am asking this because my manager wanna be sure our app won't be > available for use. (internal and external). > > Also I heard that Google apps engine was down many times and according > to this many companies changed the host from Apps engine to another > PAAS provider. > > > > Another reason for my question is I suggested to develop over Google > Apps Engine for our Customers , but also I told Our management that we > can not trust Google Apps Engine to do this for now , because as you > know and correct me if I am wrong (Google don't care much about Apps > Engine Support) > > > so my question will be now , can I trust Google Apps engine to use it > for our Clients? in case of yes or no please tell me reasons for your > answer. > > On Oct 6, 7:50 pm, Joshua Smith <joshuaesm...@charter.net> wrote: >> Depends how you define "down." >> >> If you only consider HR, it hasn't gone completely down ever. Some bugs >> have happened (like losing the ability to send mail to gmail addresses with >> .'s in them) which reduced functionality for HR, and there have been times >> when you could not update your app. But I don't think HR has ever stopped >> serving since it was introduced. >> >> M/S has been down lots of times, sometimes for extended periods. But that's >> irrelevant if you are using HR, which you should be if you care about >> downtime. >> >> -Joshua >> >> On Oct 6, 2011, at 1:42 PM, ahmed adel wrote: >> >> >> >> >> >> >> >>> I need to know how many time did Google apps engine went down since >>> launching this service also I need to know for how many hours and what >>> is the time exactly. >> >>> Also I need to know your opinion about the below. >> >>> We are planning to develop a product over Google apps engine , a big >>> project actually for our company. >> >>> so should I start using Google apps engine or should I use another >>> PAAS and if so what is the recommended PAAS. >> >>> thx >> >>> -- >>> 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 >>> athttp://groups.google.com/group/google-appengine?hl=en. > > -- > 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. > -- 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.
