Friday, November 19, 2010

App Engine Prerelease SDK 1.4.0

There was an interesting post to the App Engine list http://goo.gl/zFcsu where Ikai wrote...

"The Always On feature allows applications to pay and keep 3 instances of their application always running, which can significantly reduce application latency. Developers can now enable Warmup Requests. By specifying a handler in an app's appengine-web.xml, App Engine will attempt to to send a Warmup Request to initialize new instances before a user interacts with it. This can reduce the latency an end-user sees for initializing your application."

This is means that JRuby (Sinatra or Rails) applications will work much better on App Engine. Users will not experience spin-up delays as they have in the past because new instances will spin-up in the background. Look for documentation on this very soon.

9 comments:

  1. This changes everything for all languages on AppEngine that have to spin up, way to go!

    ReplyDelete
  2. These are great news for the JRuby community. Keep up the good work people.

    ReplyDelete
  3. If I read this correctly, this is a "pay" feature. In which case, multiple cron jobs to keep instances warm is still the way to go for us cheap-skates with low traffic needs.

    I currently have 5 cron jobs that hit the site once every minute. The site remains responsive and the cron jobs use less the 5% of the daily CPU quota. Ironically, without the cron jobs, the site was using a greater percentage of the daily CPU quota due to constantly spinning up new instances. So, while it seems wasteful, it actually reduced resource usage on my site and improved performance.

    Regardless, this is great news and should be very useful for sites that are more active and more commercial than my hobby site.

    ReplyDelete
  4. This blog is so interesting.explain about latest
    versions.thanks for sharing this latest
    versions.
    oracle fusion procurement online training

    ReplyDelete
  5. I really appreciate information shared above. It’s of great help. If someone want to learn Online (Virtual) instructor
    lead live training in Oracle Fusion Financials online Training , World Class Virtual Instructor led training on Oracle fusion Financials Online Training. We have industry expert trainer. We provide Training Material and Software Support. calfre has successfully conducted 100000+ trainings in India, USA, UK, Australlia,
    Switzerland, Qatar, Saudi Arabia, Bangladesh, Bahrain and UAE etc.

    ReplyDelete
  6. You have clearly explained about the process thus it is very much interesting and i got more information from your blog.
    OOracle Fusion SCM Training in Bangalore

    ReplyDelete
  7. Great info. I love all the posts, I really enjoyed,
    nice post and site, good work!
    I would like more information about this, because it is very nice.
    AS/400 Training in hyderabad

    ReplyDelete
  8. Nice Blog. Thanks for sharing.
    Ensures best online Job Support.
    We help IT professionals by providing them Best Online Job Support in 250+ technologies. Our services are very reliable and most affordable. Call Today for free demo.

    ReplyDelete
  9. We provide best Selenium training in Bangalore, automation testing with live projects. Cucumber, Java Selenium and Software Testing Training in Bangalore.
    Online selenium training in India - KRN Informatix is a leading Selenium Training Institute in Bangalore offering extensive Selenium Training
    Online selenium training in India
    Weekdays selenium training in bangalore
    Weekend selenium training in bangalore
    Weekend online selenium training
    Java Selenium Automation Training in Bangalore
    Online selenium training in India

    ReplyDelete