Hi,
What would be the best connector default configuration ?
I switched HTTP/1.1 to be:
maxThreads: 100
minSpare: 1
maxSpare: 10
That should be ok for a small/medium site, and bad for a large site. It should be decent for benchmarking if there's a warmup period. Should the default config be large site compliant ?
May be you should mimic the defaults settings of Apache 2.0 :
150 Threads, 25 MinSpare, 75 MaxSpare.
Also, in order to conserve processors for useful tasks when the load increases (and also twart DoS attacks), I was thinking about introducing dynamic scaling for the HTTP connection timeout for keepalive.
The formula would be something like this.
ratio = maxThreads / currentBusyThreads;
if (ratio between 0 and 0.33) {
normal timeout
} else if (ratio between 0.33 and 0.66) {
half timeout
} else if (ratio between 0.66 and 1) {
no keepalive (so only one request is processed per connection), timeout / 4 (or maybe more)
}
Comments ?
Protection against DOS attack should also have some glues like :
- Max clients from the same IP (ie DOS attack from the same host).
- Max request by minutes or seconds (slow down attackers....)
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