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Apache HTTP Server Version 2.0
Apache Module mpm_netware
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Summary
This Multi-Processing Module (MPM) implements an exclusively threaded web server that has been optimized for Novell NetWare.
The main thread is responsible for launching child worker threads which listen for connections and serve them when they arrive. Apache always tries to maintain several spare or idle worker threads, which stand ready to serve incoming requests. In this way, clients do not need to wait for a new child threads to be spawned before their requests can be served.
The StartThreads, MinSpareThreads,
MaxSpareThreads, and MaxThreads
regulate how the main thread creates worker threads to serve
requests. In general, Apache is very self-regulating, so most
sites do not need to adjust these directives from their default
values. Sites which need to serve more than 250 simultaneous
requests may need to increase MaxThreads, while
sites with limited memory may need to decrease
MaxThreads to keep the server from thrashing (spawning and
terminating idle threads). More information about
tuning process creation is provided in the performance hints
documentation.
MaxRequestsPerChild controls how frequently the
server recycles processes by killing old ones and launching new
ones. On the NetWare OS it is highly recommended that this directive
remain set to 0. This allows worker threads to continue servicing
requests indefinitely.
See also: Setting which addresses and ports Apache uses.
Directives
- Listen
- ListenBacklog
- MaxRequestsPerChild
- MaxSpareThreads
- MaxThreads
- MinSpareThreads
- SendBufferSize
- StartThreads
- ThreadStackSize
MaxThreads Directive
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The MaxThreads directive sets the desired maximum number worker threads allowable.
ThreadStackSize Directive
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This directive tells the server what stack size to use for each of the running threads. If you ever get a stack overflow you will need to bump this number to a higher setting.
