We would like to add an indication of your current uptime (as defined in the SLA http://code.google.com/appengine/sla.html) but it is going to take some time to make that happen.
Greg On Tue, Nov 22, 2011 at 5:05 AM, Will <[email protected]> wrote: > Same measure as Google uses for the 'entire system' uptime. > > If there is a will to know, there is a way to know. Just as GAE can > measure every application's datastore read/write/small op numbers and every > instance usage down to minute. > > Otherwise, why bother to put 99.95% in EULA? > > Will > > > On Tue, Nov 22, 2011 at 9:41 AM, Brandon Wirtz <[email protected]>wrote: > >> How would it know?**** >> >> ** ** >> >> And which measure do you use?**** >> >> ** ** >> >> Say I’m down to all users on AOL because Google suffered a DNS poisoning >> attack, Which has happened once before. Am I down? **** >> >> >> Google has DataStore Write locked (like happens on MS) my app handles >> that, but I bet yours doesn’t. Am I down? Are You?**** >> >> ** ** >> >> Pre-Processing Latency rises to 20 seconds, so all requests that take >> more than 40s to complete fail. Is the service down?**** >> >> ** ** >> >> All processes take 50% longer than they did previously, now all requests >> that took 40s fail, and apps using a max idle/ min latency setting fail 20% >> of the time Is the Service 100% down? 50% down? 20% down?**** >> >> ** ** >> >> I now have edge cache handling 40% of all my requests… So even if all GAE >> is down I’m 40% up, does that mean that 99.1% = 99.5% **** >> >> ** ** >> >> My Uptime monitoring “Internally” polls every 20 seconds and uses a >> random number in the query as a cache buster to prevent the cache giving a >> false up, but the request is also optimized to not put load on the system >> so I don’t know if something like all reads from memcache return null.*** >> * >> >> ** ** >> >> SLA’s are worth about as much as the HTML they are written on. You >> either trust that the company will be up, or you don’t. Amazon’s week of >> down time means they are 200 weeks from 99.5% uptime. And I’d rather have >> my week of down time spread out in 5 minute increments over 4 years than >> getting it all at once.**** >> >> ** ** >> >> ** ** >> >> *From:* [email protected] [mailto: >> [email protected]] *On Behalf Of *Will >> *Sent:* Monday, November 21, 2011 5:19 PM >> *To:* [email protected] >> *Subject:* [google-appengine] uptime statistics for each HRD application* >> *** >> >> ** ** >> >> An uptime statistics report for each HRD application seems in order, just >> like usage reports for each app.**** >> >> **** >> >> Since every app is paying for its own guaranteed uptime, with individual >> report, we won't get into this "although your app is broken for this short >> period time, the system as a whole functions as expected" mess...**** >> >> **** >> >> Thoughts?**** >> >> **** >> >> Will**** >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google App Engine" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> 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 [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> 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 [email protected]. > To unsubscribe from this group, send email to > [email protected]. > 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 [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
