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10.5.9.4. MinSpareServers and MaxSpareServers
These values are only used with the
preforkMPM. They adjust how the Apache HTTP Server dynamically adapts to the perceived load by maintaining an appropriate number of spare server processes based on the number of incoming requests. The server checks the number of servers waiting for a request and kills some if there are more than
MaxSpareServersor creates some if the number of servers is less than
5; the default
20. These default settings should be appropriate for most situations. Be careful not to increase the
MinSpareServersto a large number as doing so creates a heavy processing load on the server even when traffic is light.