Problems with "period of innactivity" on server

[Alex Rousskov]

On Thu, 2008-08-28 at 13:36 +0000, Rafael Vieira wrote:
 
> I dont know where it can be misconfigured. I just decreased the
> time in platDur = 300sec because we dont want it to run for many
> hours. Is there any problem with doing that?

No, adjusting platDur should not cause connectivity problems. However,
your server is not getting any requests at all and quits after 5 minutes
of inactivity:

> 000.02| starting 575 HTTP agents...
> 000.10| i-framp      0   0.00     -1  -1.00   0  575
> 000.19| i-framp      0   0.00     -1  -1.00   0  575
> ...
> 004.94| i-fill      0   0.00     -1  -1.00   0  575
> 005.02| i-fill      0   0.00     -1  -1.00   0  575
> 005.09| was idle for at least 5.00min
> 005.09| got 0 xactions and 0 errors

The server is not getting any requests because your proxy cannot resolve
any PolyMix domain names. Here is one of the many error messages logged
by polyclt:

> 000.02| Xaction.cc:74: error: 1/1 (c19) unsupported HTTP status code
> 1219929069.023472# obj: http://w1049.h1129o1101s1010.bench.tst/w1255599d.0ca53025:000000ca/t02/_00000001.htm flags: basic,GET, size: 0/-1 xact: 1255599d.0ca53025:00000496
> HTTP/1.0 503 Service Unavailable
> Server: squid/2.5.STABLE14
> Mime-Version: 1.0
> Date: Thu, 28 Aug 2008 13:00:18 GMT
> Content-Type: text/html
> Content-Length: 1355
> Expires: Thu, 28 Aug 2008 13:00:18 GMT
> X-Squid-Error: ERR_DNS_FAIL 0
...

If you run into more problems, consider looking at console logs. They
often contain enough information to diagnose the problem. The console
format is documented at
http://www.web-polygraph.org/docs/reference/output/console.html

HTH,

Alex.


> > Subject: Re: Problems with 'period of innactivity' on server
> > From: rousskov at measurement-factory.com
> > To: net_engineer at hotmail.com
> > CC: marcello.mezzanotti at gmail.com; users at web-polygraph.org
> > Date: Wed, 27 Aug 2008 15:52:20 -0600
> > 
> > 
> > On Wed, 2008-08-27 at 19:25 +0000, Rafael Vieira wrote:
> > 
> > > I have a server in a network, and a client (in another network),
> after
> > > running workload polymix 4, they seem to be communicating without
> any
> > > problem (nothing is been blocked in my firewall).
> > > 
> > > After some time (about 15 minutes) the server stops for 'period of
> > > innactivity'. Why would it say 'innactivity' if the client is
> started
> > > and sending packets to server?
> > 
> > Bugs notwithstanding, Polygraph server reports inactivity timeout
> when
> > it does not receive any requests and cannot send any responses. You
> can
> > control the timeout duration using the --idle_tout command line
> option.
> > The default is 5 minutes.
> > 
> > It is possible that the server was receiving requests but then
> stopped
> > because the network, the device under test, or the drones are
> > overloaded. It is also possible that the client is misconfigured to
> send
> > too few requests after the test starts.
> > 
> > Please post your workload and verbose console logs if you still need
> > help with this.