Apache module mod_athena manual

• Summary
• Install / Compile / Tune
• Architectural suggestions
• Securing the system
• Configuration suggestions
• Directives
• Sending statistics
• Runtime management
• Querying the balancer

Configuration Suggestions

Currently, this guide is an informal collection of tips.

• AthMUXCount directive: control SYSVIPC resources:

  If you have alot of configured farms and physicals, you may find apache freezes on start-up. This is most likely because you are running out of available SYSVIPC semaphores. Either raise the kernel's limit and retry, or set AthMUXCount down to a number below your kernel limit. If there are less locks than "items", then items share the locks. This just means that two or more physicals may share the same lock, and cannot be updated simultaneously. In practical use, this is not a problem.