Randy -
What is the limit of how many nodes you can have in a ruleset?
There are no published benchmarks. The limit would be determined by the
speed and size of your processor, the number of traps you have arriving per
second, the complexity of what you are trying to do, and most of all by the
fact that all traps and all rulesets are processed by one daemon, nvcorrd.
I have personally seen customers running as many as 35 rulesets, but these
were very simple (trap settings --> event attributes --> page someone).
What is the use of a GUI ruleset editor if it means you still have to do
some shell scripting for the greater part of getting things done the right
way?
The ruleset editor is not and does not claim to be a 4th Generation
Language to handle all your needs. But that does not keep it from being
very useful. The developers wrote the twenty top things that they were
told people would want or need and provided those in templates or nodes for
you to use. If you want to do more than is provided, then you have to
provide your own code to do it. That about sums up the state of GUI tools
on UNIX, doesn't it? And at least you don't have to write the code to send
events to the display, or resolve them, or do pass or reset on match and so
on.
Is there a strategy for creating rulesets?
Yes, in the Admin Guide for V5 (I think) with all the other stuff about
rulesets it suggests that you use the most definitive criteria first, just
as you outlined. Usually this is Trap Settings so that you are not
bothering with traps you don't need, because all of them go through
nvcorrd, even the ones marked "Log Only" in trapd.conf.
I posted a note on Ruleset Performance with suggestions last year. I will
do so again.
Hope this helps.
James Shanks
Tivoli (NetView for UNIX) L3 Support
"Randy Pelle (DSN)" <Randy.Pelle@DSN.ERICSSON.SE> on 03/03/99 11:42:42 AM
Please respond to Discussion of IBM NetView and POLYCENTER Manager on
NetView <NV-L@UCSBVM.ucsb.edu>
To: NV-L@UCSBVM.ucsb.edu
cc: (bcc: James Shanks)
Subject: Re: rulesets
Having troubles with rulesets myself, I like to say this:
I agree with James, 90 nodes sound like too big. But if so, what is the
limit. I'm still looking for it in any document I can get my hand on.
Second what is the use of a GUI ruleset editor if it means you still have
to
do some shell scripting for the greater part of getting things done the
right way.
Maybe experienced ruleset wizards can answer this:
Is there a strategy (rule of thumb) for creating rulesets. Like in what
would be the most efficient order in using all available options from. I'm
thinking of something like: pizza -> trap decision -> query database (is
node an importand enough)-> reset on match (comparing up & down from same
node) ->send pager alarm.
Having a efficient node order may also reduce the number of nodes you need.
BTW, Larry even with a partial ruleset done, try using it with 'nvcdebug -d
all' and check the nvcorrd.alog an nvcorrd.blog in /usr/OV/log it may give
some hint when rulesets are becoming as you say a 'resource-pig'.
Kind regards,
Randy Pelle
> -----Original Message-----
> From: James_Shanks@TIVOLI.COM [SMTP:James_Shanks@TIVOLI.COM]
> Sent: woensdag 3 maart 1999 14:44
> To: NV-L@UCSBVM.UCSB.EDU
> Subject: Re: rulesets
>
> 90 nodes?
> It sounds way too big to me. Just what are you trying to do with it?
> How on earth do you intend to test something that complicated?
>
> You may need a ruleset if you want to do event matching or keep some
> events
> off the display while letting others of the same type through. Merely
> running a shell script as an automatic action in trapd.conf won't give
you
> that.
>
> BTW, it is possible to combine shell scripts with your rulesets if you
> have
> a script that is useful and does more than you can easily do using the
> provided functions. That's what actions and in-line actions are for.
>
> James Shanks
> Tivoli (NetView for UNIX) L3 Support
>
>
>
> Larry H <remlali@HAREM.ERICSSON.SE> on 03/03/99 08:04:59 AM
>
> Please respond to Discussion of IBM NetView and POLYCENTER Manager on
> NetView <NV-L@UCSBVM.ucsb.edu>
>
> To: NV-L@UCSBVM.ucsb.edu
> cc: (bcc: James Shanks)
> Subject: rulesets
>
>
>
>
>
> Hi,
> I wonder how many of you are using rulesets,
> when it seems most task could be performed
> with shell-scripts. Indeed when using netview
> commands.
>
> Is a ruleset a resource-pig compared to a shellscript?
> Our ruleset would contain 90 templates when its
> finished and I wonder if it maybe too big.
> Thanks..
> /larry
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