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                                               
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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"
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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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