As a general tip, don't specify *both* kinds of parameters to automatic scaling: the ones trying to reduce costs (max_idle_instances, min_pending_latency) *and* the ones trying to reduce latency/improve scalability (min_idle_instances, max_pending_latency). We'll have a future blog post about that but that will be a while coming -- for now, I just quote the key take-away from that post -- "Attempting to control for both cost and latency can leave you application in a sub-optimal state, causing it to perform in ways you might not expect."
On Fri, Aug 14, 2015 at 3:34 AM, Rajesh Gupta < [email protected]> wrote: > I have the following in the appengine-web.xml > > <instance-class>F1</instance-class> > <automatic-scaling> > <min-idle-instances>2</min-idle-instances> > <max-idle-instances>2</max-idle-instances> > <min-pending-latency>10s</min-pending-latency> > <max-pending-latency>10s</max-pending-latency> > </automatic-scaling> > > Attached is the screenshot, and it shows 3 instances. I have not issued > any traffic, and yet shows 3 instances, instead of 2 instances. > > > On Fri, Aug 14, 2015 at 3:30 PM, Rajesh Gupta < > [email protected]> wrote: > >> Hi, >> We are in the process of looking at our latency issues >> >> In this context, it is becoming very difficult, because the instances are >> spinning and getting killed. >> So, we don't have the logs of the which instance are serving the request, >> because the instances are shutdown immediately, and if we go into the >> instances screen, the new instances are showing, and the old instances are >> not shown, and hence the 'view logs' link is not available for the killed >> instances. >> >> Is there any way to say that do not spin any instances at all, other than >> the fixed set of instances. >> > Yes, it's called *manual* scaling (as opposed to *automatic* scaling, which is the default and what you're using above). See https://cloud.google.com/appengine/docs/java/modules/#Java_Instance_scaling_and_class (and remember that if you switch to that the instance class must also be switched, from F1 to B1 -- same characteristics, except for the different approach to scaling). HTH, Alex > >> -- >> Rajesh >> *www.VeersoftSolutions.com <http://www.VeersoftSolutions.com>* >> *www.AccountingGuru.net <http://www.AccountingGuru.net>* >> *Accounting/Inventory/Orders on Google Cloud Platform and Mobile* >> >> > > > -- > Rajesh > *www.VeersoftSolutions.com <http://www.VeersoftSolutions.com>* > *www.AccountingGuru.net <http://www.AccountingGuru.net>* > *Accounting/Inventory/Orders on Google Cloud Platform and Mobile* > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/google-appengine. > To view this discussion on the web visit > https://groups.google.com/d/msgid/google-appengine/CA%2BS7ijYOUAXxON5dZ0Gdd6oY%2BgjXRG5QcOV7SupMyv4tPccrgQ%40mail.gmail.com > <https://groups.google.com/d/msgid/google-appengine/CA%2BS7ijYOUAXxON5dZ0Gdd6oY%2BgjXRG5QcOV7SupMyv4tPccrgQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/CAE46Be-kgAGeKheAF%2BE2Bxuzu%3Dfg-rg78hEztrDY_xvTDQNudQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
