RE: Non-Responsive

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Something that was noticed was that the GNU had a ton of sockets in wait
state.  It looks like there was a blip in IP and these sockets did not get
released and the GNU had them in wait state.  


R. Todd Wallace
-----Original Message-----
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of R. Todd
Wallace
Sent: Tuesday, February 22, 2005 5:46 AM
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Non-Responsive

This one stung me over the weekend.  Our GNU quit accepting calls all
together was not caught till the following morning. I had opennms checking
the status port, but it did not catch it as the status port accepted
connections, it just did not respond to any commands.  I had a script
watching for the PID file, but it was there as the process was running.  It
seems to be under heavy load due to full media routing.  What it looks like
is happening is that the GNU just hangs and does not come back.  Any help or
direction would be greatly appreciated....


R. Todd Wallace
CTO
Touchstone Systems, Inc.
http://www.tstoneinc.com
+1 214-764-9301 x101

-----Original Message-----
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of R. Todd
Wallace
Sent: Wednesday, February 09, 2005 11:40 AM
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Non-Responsive

We have done some more research and it seems that Radius is idle when the
GNU becomes non-responsive.  We can issue requests to radius and it responds
which seems to take Radius out of the picture.  What might be a problem is
that the GNU cannot free up a socket for a radius request.  I can't tell if
we are running out of Processor Cycles, Memory or sockets.  We have ULIMIT's
set, FD's set and everything looks typical of systems mentioned.  We have a
ton of traffic on these and do hit low asr periods on particular routes.
When it becomes non-responsive, I can hit the status port, but it just gives
a blank screen like it is waiting on response.  I enter commands and they
just echo on the screen.  I am not sure if the GNU is aware of its
resources, but it sure would be nice if it would just reject requests until
that resource is freed up.   A patch as you suggested would be great!


R. Todd Wallace
-----Original Message-----
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Freddy
Parra
Sent: Tuesday, February 08, 2005 11:35 AM
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Non-Responsive

Try increasing the number of socket descriptors that your current Gnugk can
use. Maybe the number of sockets is the problem as Michal stated, but I
think that if it is then Gnugk should be patched so that it can recover from
the lack of socket resources instead of the entire process just becoming
non-responsive.

Freddy

-----Original Message-----
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of R.
Todd Wallace
Sent: Tuesday, February 08, 2005 12:00 PM
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Non-Responsive

 
We have gone for a log time without any problems and then we locked up 3
times last night.  Same customer, same traffic.  The only difference is that
we had more call attempts at a lower ASR.

R. Todd Wallace

-----Original Message-----
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Freddy
Parra
Sent: Tuesday, February 08, 2005 10:51 AM
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Non-Responsive

Actually, I have run into this problem before on 2.2b5. It hasn't happen to
me yet on 2.2.2. When this happens nothing is responsive. When you check the
cpu usage for the Gnugk process it stays at zero, and the calls begin to
drop while all incoming calls never get connected. Also this has happen to
me with about 500 calls in h225 routed mode (with
tunneling) only. I usually run 3 to 4 times more calls on Gnugk per server.
So I don't think it's a socket issue or a cpu issue since cpu usage in
routed mode its relatively low when I'm running 1500 to 2000 calls on my
servers I'm at about 24 percent.

I believe I posted this same problem a few months back. This issue doesn't
happen very often. I once noticed that it did happen to me when I issued a
debug trace on the status port, the system became non-responsive like the
symptoms just described. 

Freddy

-----Original Message-----
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx
[mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of
Zygmuntowicz Michal
Sent: Tuesday, February 08, 2005 11:25 AM
To: openh323gk-users@xxxxxxxxxxxxxxxxxxxxx
Subject: Re:  Non-Responsive

Maybe you're running out of sockets or cpu usage is too high.
Check port ranges and current socket usage and per process socket limits
(netstat, ulimit).
If you're using acct/auth, make sure your backend is not a bottleneck.

----- Original Message -----
From: "R. Todd Wallace" <rwallace@xxxxxxxxxxxxx>
Sent: Tuesday, February 08, 2005 5:01 PM


> We are having issues with the GNU becoming non-responsive.  The
service is
> still active, but you can't go to the status ports and calls start 
> declining.  Nothing is written to the gatkeeper.log file.  If you stop
the
> service, it will not die and you have to kill with a "-9".  We have
the
> GNU's compiled with debug, but a core is not generated.  We are
running 
> the
> latest CVS and doing full media.  This seems to come with a very heavy

> load
> / call charge rate.  The only thing I see is that it scrolls the
following
> message across the screen to a call sticks:
>
> 2005/02/07 23:19:03.299 3       ProxyChannel.cxx(2757)  RTCP
> xxx.xxx.xxx.xxx:xxxx socket has no destination address yet, flush
ignored
>
> I think this is normal, but not sure if we are having problems with 
> sockets not freeing up or not freeing fast enough.
>
> Any Thoughts??
>
> R. Todd Wallace



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