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Re: [nv-l] ovactiond problem

To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] ovactiond problem
From: "Gerardo Ruiz Garcia" <gerardo_ruiz@inicia.es>
Date: Thu, 9 Mar 2006 10:53:15 +0100
Delivery-date: Thu, 09 Mar 2006 09:53:49 +0000
Envelope-to: nv-l-archive@lists.skills-1st.co.uk
In-reply-to: <OFC69A2E96.75319248-ON8525712B.004C8D49-8525712B.004E43D0@us.ibm.com>
Reply-to: nv-l@lists.us.ibm.com
Sender: owner-nv-l@lists.us.ibm.com
I have a question to the option wait -w set to cero.
THat it means that the script are executed in background? , so I have to
develop the scripts in a way that several instances of the script can we
executed at the same time.

>-- Mensaje Original --
>Subject: Re: [nv-l] ovactiond problem
>To: nv-l@lists.us.ibm.com
>From: James Shanks <jshanks@us.ibm.com>
>Date: Wed, 8 Mar 2006 09:14:26 -0500
>Reply-To: nv-l@lists.us.ibm.com
>
>
>Francois is probably right that increasing the application queue size will
>help resolve your problem, but you should be aware of the performance
>implications of what you are doing.  The reason that ovactiond is losing
>contact with trapd is that he cannot execute whatever it is that you are
>having him execute fast enough to keep up.  So his trap queue backs up
>inside trapd  and then trapd closes it when it gets full.  trapd can handle
>receiving 10 traps a second and passing them on, but ovactiond cannot take
>action on every one at that rate.  So making the queue size bigger will
>probably allow ovactiond to stay connected, but he will fall behind.  The
>only way he can catch up is if the trap rate to him slows down eventually,
>or if he doesn't wait for the actions you ask him to execute to complete.
>By default they are serialized.  But you can have him just spawn them as
>fast as he can by setting the wait time (-w) to zero.
>See the man page on ovactiond.
>
>The entire idea behind trap processing is that it should be "bursty", that
>is, that there should be slow periods as well as fast ones.  If there
>aren't any slow periods, then your daemons are likely to fall behind,
>depending on how much work you have them do.     I don't have any
>benchmarks to share with you, so you are going to have to watch your system
>for yourself.
>
>James Shanks
>Level 3 Support  for Tivoli NetView for UNIX and Windows
>Tivoli Software / IBM Software Group
>
>
>                                                                      
 
>  
>             Francois Le Hir                                          
 
>  
>             <flehir@ca.ibm.co                                        
 
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>             m>                                                       
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>             03/08/2006 08:18                                         
 
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>you can increase the value of "Set Trapd connected applications queue size"
>in the trapd configuration (smitty nv6000 or serversetup). I don't remember
>the default value but mine is now set to 25000 (which is probably much
more
>than the default).
>
>Salutations, / Regards,
>
>Francois Le Hir
>Network Projects & Consulting Services
>IBM Global Services
>
>
>
>
>             "Gerardo Ruiz
>             Garcia"
>             <gerardo_ruiz@ini                                        
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>                                       [nv-l] ovactiond problem
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>             03/08/2006 04:34
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>Hi list:
>In our Netview design it is executed a script with several traps are
>received,
>in trapd configuracion.
>As the rate of traps is 10 per second the ovactiond has problems, with
the
>following message in ovactiond.log:
>
>03/06/06 10:00:33 ovactiond lost contact with trapd.
>03/06/06 10:03:40 ovactiond lost contact with trapd.
>03/06/06 10:14:46 ovactiond lost contact with trapd.
>03/06/06 10:29:16 ovactiond lost contact with trapd.
>03/06/06 10:31:14 ovactiond lost contact with trapd.
>
>How can I improbe behaviour of ovactiond.
>trapd is configured with default settings.
>Netview 7.1.4 FP03 AIX5.2 ML-6 .
>
>Any comments wil be appreciated.
>
>
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>¿Quieres sacar el máximo a tu conexión Tiscali?
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>http://ayuda.tiscali.es/ayuda
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