An application pool in Internet Information Services (IIS) is a convenient way to administer a set of one or more web sites and applications and their corresponding worker processes.
FileMaker, Inc. has identified a situation where the “DefaultAppPool” for IIS 7.5 will automatically terminate after several days of uptime and you may receive one of the following error messages:
- “Application Pool ‘DefaultAppPool’ is being automatically disabled due to a series of failures in the process(es) serving that application pool.”
- “A process serving application pool ‘DefaultappPool’ suffered a fatal communication error with the Windows Process Activation Service.”
The following have been found to help with the issue described above:
Application Pools>Application Pool > Right click and select Advance Settings
- Disable Rapid Fail Protection from the Internet Information Services (IIS) Manager. Rapid Failure Protection is on by default in IIS.
- Modify the number of allowable failures to 20 failures in 1 minute. This involves modifying the values for “Failure Interval (minutes” and “Maximum Failures”. The default values are “5 failures” in “5 minutes” after which the Application Pool will crash and NOT restart automatically.
- Check whether the option “Enable 32 bit applications” has been set as “False”. It should be False
Please contact Microsoft for additional information on how to configure IIS.
FileMaker is aware of this issue with the FileMaker products listed.