This is an interesting question indeed. I don't believe startup times for Java will become better on GAE; it's also very typical for in Java land that startup times take > 30s for medium to large apps or depending on the frameworks chosen. This is no problem when you up front spin up the number of required instances like on a VPS or CloudFoundry PaaS. One of the great things about GAE is the programming API and the autoscaling part, but this autoscaling (and thus spinning up and killing instances) bites back unfortunately.
Couldn't Google prohibit cold requests being served to users? In many cases it would better to have latency when a requested is routed to a warm instance. I think this would solve many problems. What do you think? To bad Google is not participating in these discussions. But with great technologies and frameworks being delivered by Google (like Angular JS) Google cannot be taken seriously when they say just go back 10 years and use servlets, static factories, hard coded configs etc. This is a real development nightmare. ^M On Friday, May 17, 2013 1:21:22 AM UTC+2, jeffrey_t_b wrote: > > Jeff, I believe that you had asked on this list, a while ago: In what > circumstance is it _ever_ good for user requests to see cold starts? > > Did you ever get an answer to that? That is the part that puzzles me > still. Is it just too hard? Maybe they don't have a _scalable_ algorithm > for directing requests to already-existing instances? > > Anyway, with all of the focus on the Compute Engine side, I wonder if > improvements to App Engine are going to deprioritized. > > > > On Wednesday, May 15, 2013 4:52:51 PM UTC-7, Jeff Schnitzer wrote: >> >> I attended the "Autoscaling Java" session at Google I/O. In summary, the >> advice is: >> >> * Don't use dependency injection. >> * Don't use AOP. >> * Hardcode configuration values as much as possible. >> >> In other words, go back to Java circa 2002. There was no discussion of >> changing routing so that user requests don't see cold starts. I asked about >> this in person - apparently they're still "talking about it" and nothing >> has been done about it. >> >> I am sad. >> >> Jeff >> > -- 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 google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at http://groups.google.com/group/google-appengine?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
