Recently installed CF11 on a Windows 2012R2 server running IIS 8.5. There are currently 9 sites configured in IIS, all under separate application pools.
Several times a day, for reasons I have not yet determined, requests for CF pages under any one of the sites are returned very slowly (>10 seconds). Typically, they are returned in <500 ms. Recycling the application pool (or pools) appears to address this issue, which made me think the issue was with IIS. However, requests for static resources from the same IIS sites load fine, so I suspect it is not strictly an IIS issue.
I applied the changes to worker.properties and server.xml recommended by Anit Kumar Panda in ColdFusion 11 IIS Connector Tuning — Adobe ColdFusion Blog:
- worker.cfusion.max_reuse_connections=250
- worker.cfusion.connection_pool_size=2250 (9*250)
- worker.cfusion.connection_pool_timeout=60
- maxThreads="2250" connectionTimeout="60000" attributes in Server/Service/Connector
I'm still seeing slow responsiveness several times a day. I'll continue troubleshooting but thought I'd reach out to the community for ideas/troubleshooting tips.