silverlight - AsyncCallback Error in a webfarm environment -

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we getting ready in few weeks deploy new product brand new webservers , doing deployment testing in advance. (smart move? :-)) anyway, have 2 web servers (web01 , web02) , load balancers.

  1. stateless sessions setup
  2. machine keys setup on both web servers
  3. web01 stateless server.
  4. both http , https
  5. load balancers set 'not sticky' , 'sticky'
  6. hitting url web, not internally
  7. we can actively see web server have session @ given second, changing between servers. (should be? or should session more ‘static’ longer periods of time?)

the app silverlight app. user logs in on web02 (we have lables on page can see server hitting) enters data. saves. take web02 offline. can see user on web01 error "an asynccallback threw , exception". if click ok user can continue if nothing happened. data there etc.

should turn on tracing diagnose? have other suggestions? running fiddler , seeing 503 , 504 errors on web service can't tell server coming from.

thanks suggestions can provide. not area of expertise @ loss.

rhonda


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