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From Chuck Murcko <ch...@n2k.com>
Subject [Fwd: FIN_WAIT states] (fwd)
Date Mon, 30 Dec 1996 21:02:24 GMT
Rob Hartill liltingly intones:
> Content-Type: text/plain; charset=us-ascii
> Content-Transfer-Encoding: 7bit
> 
> Subject: FIN_WAIT states
> Date: Mon, 30 Dec 1996 20:27:39 GMT
> From: lee@hshuna.hsh.com (Lee Havemann)
> Organization: HSH Associates
> Newsgroups: comp.infosystems.www.servers.unix
> 
> I just installed Apache 1.2b3, and being somewhat of a novice, I can't seem to
> pin down all the new FIN_WAIT_1 and FIN_WAIT_2 I see on the unix box.
> We used to have a few waiting around, but now we mostly have aroud 400
> processes in this state (found by a netstat command).  Most of them are in
> fin_wait_2 states.
> Is there something I set up wrong in the compile of one of the conf files?
> 
> We typically average 30-40K hits per day.
> This is a BSDI 2.1 setup on a P133.
> 
> Server status:
> 
> Current Time: Mon Dec 30 15:22:17 1996
> Restart Time: Sun Dec 29 16:09:57 1996
> Server uptime: 23 hours 12 minutes 20 seconds
> Total accesses: 29371 - Total Traffic: 73.0 MB
> CPU Usage: u0.466667 s1.23333 cu0.416667 cs0.216667 - 0.00279% CPU load
> 0.352 requests/sec - 916 B/second - 2606 B/request
> 3 requests currently being processed, 7 idle servers
> 
> _..._.W_..W....__...R..__.......................................
> ................................................................
> ................................................................
> ................................................................
> 
> --
Hello, lee. The FIN_WAIT_X states are a result of server timeouts, to which
the browsers never send a final FIN. BSDI doesn't time out the FIN_WAIT_2
state, so they'll stay around forever, normally.

You can find a description of this problem (and a BSDI 2.1 patch to time
out the wait states that we use, at 500k-1Meg hits/day) at

http://www.apache.org/docs/misc/perf-bsd44.html#detail

I'd appreciate it if you could post this to the newsgroup; I haven't seen
your posting yet on my feed here. Thanks for using Apache.

chuck
Chuck Murcko	N2K Inc.	Wayne PA	chuck@telebase.com
And now, on a lighter note:
They're only trying to make me LOOK paranoid!

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