Web application stopped behaving normally after migration from Dedicated servers to Ec2 servers

Posted by sunny on Pro Webmasters See other posts from Pro Webmasters or by sunny
Published on 2012-06-20T10:05:24Z Indexed on 2012/06/20 15:26 UTC
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iis7

Web application stopped behaving normally after migration from Dedicated servers to Ec2 servers Old Dedicated Server configuration

systemtype: 32 bit operating system. RAM: 3.99 Gb Ram Processer : 1.86 GHZ

New Servers in EC2

systemtype: 64 bit operating system. RAM: 3.99 Gb Ram Processer : 2.73 GHZ - 2.31 GHZ

Everthing is working fine in our production server. But as we migrated our web application from old servers to new servers and transferred the entire network traffice to new servers.Site suddenly stopped behaving abnormally. Sometimes it's super fast Some times slow. sometimes normal some times super slow and sometimes no response This all above happens with a time interval or around 2 - 3 minutes. This went on happening 8 - 10 hours. Few differences in old and new servers are Old servers are using II6 and New servers are using IIS 7.5. We are using exactly the same code in the old and new servers. Even the ec2 servers are having higher CPU then older servers but still having lower. But not sure how this is happned. Please suggets your views...

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