We have hosted our WCF service in Windows server 2008r2 and iiis version 7.5. The problem is like we have hosted the WCF service in 12 different servers out of which two servers are not responding after 3 to 4 hours. After restarting the iis its working fine again its moving to not responding state.
When I call the Service URL (smartclientservice.svc) directly from an internet explorer browser on a server running IIS 7 or 7.5 the memory usage for the w3wp.exe spikes to over 3,500,000K but the same direct call on IIS 6 only raises the memory usage for w3wp.exe by approx. 300,000K. It is also worth noting that the memory usage for the 7 and 7.5 versions did not fall below 3,500,000K after watching it for over 15 minutes.
We tried to increase the number of worker process the occurs of the issues is reduced. Can any one help me in identifying the root cause of the issue to solve it.
Application Type: Windows Application(Click Once application)
Frame work 3.5
DB Sql Server 2008
.Net CLR Version: V2.0
Enable 32 bit applications:False
Managed pipeline Mode: Integrated
Identity: NetworkService(**When we go to the Identity of the website for anonymous authentication the identity is set to IUSR)
Idle time out minutes:20
Load User profile:False
Maximum worker processes:1
Virtual Memory Limit: 0
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