Re: About ServerLimit

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On Wed, Jul 8, 2020 at 5:44 AM Mahmood Naderan
<nt_mahmood@xxxxxxxxx.invalid> wrote:
>
> Hello
>
> When I set ServerLimit to 500, does that include all TCP connection states? I mean
> are all these counted by ServerLimit? Or just ESTABLISHED is counted?
>
>
> tcp6       0      0 192.168.168.91:443      X:18212     FIN_WAIT2   -
> tcp6       0      0 192.168.168.91:443      X:14756     TIME_WAIT   -
> tcp6       0      0 192.168.168.91:443      X:56033      FIN_WAIT2   -
> tcp6       0      0 192.168.168.91:443      X:15956      TIME_WAIT   -
> tcp6       0      0 192.168.168.91:443      X:49650       ESTABLISHED -
> tcp6       0      0 192.168.168.91:443      X:63982       TIME_WAIT   -
> tcp6       0      0 192.168.168.91:443      X:53249      TIME_WAIT   -

It's complicated and depends on the MPM used. When you see states
FIN_WAIT1 or  FIN_WAIT2 or CLOSE_WAIT there will generally be a thread
tied up in the server still.  TIME_WAIT does not.
But it's more straightforward to use /server-status if you care about
things like ServerLimit then trying to reverse engineer from netstat.

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