Hi Hamish, On Tue, Jun 5, 2012 at 6:29 PM, Hamish <[email protected]> wrote:
> Hi, > > It appears that all instances for our application got restarted at the > same time causing service failure for our customers. > > This happened at about 8am (GMT) this morning and we can see a spike > downwards on the graphs of the traffic served. > > We use the High Replication Data store and our app id is dacloudapi. > > Why would this happen? It seems very odd for "all" instances including > the resident to restart at the same time. > It's totally an expected behavior because we moved your application from one datacenter to another around that time. In the current system design, when it happens, your instances will need to be re-loaded in the new datacenter. Also, all of your memcache content will be flushed in that case. Although we're trying hard to avoid this situation as much as possible, but it can happen to any application. So it is very important to keep your application fast even on the loading request in order to minimize the damage to your system during such serving changes. -- Takashi > Can someone please look into this for me? > > Thank you, > Hamish > > -- > 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. > > -- Takashi Matsuo | Developer Advocate | [email protected] -- 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.
