RE: [nv-l] Stress Testing NV, looking for opinions

["Van Order, Drew \(US - Hermitage\)" <dvanorder@deloitte.com>]

I got the base script from IBM support and have no problem sharing if someone from IBM weighs in with no objections. We are running these traps through TEC_ITS.rls, so nvcorrd, etc. should be getting exercised. I would like to put a mix of traps in as well, but am not a developer so I'm making do right now.

 

Funny you mention Query Smartset node; we are pretty sure this was the major source of our trouble. Ours happened to be there for no good reason, so we removed it and cycled the daemons. In addition, we did minor things like configure trapd to save logs for a week, and implemented a weekly ovmapcount/ovtopofix process. NV has been smooth ever since. Until then, NV had been hanging at least once/week, and we were thinking NV was choking on the number of traps, which we now believe to be bunk based on testing. MLM was considered to be the solution until we learned our addressing scheme was not compatible. That's when we opened a support call--been at this for about a month now.

 

We're also ready to up the number of traps to see where NV falls over. When this started, we got information from support that NV could handle sustained 6-8 traps/second. I've got the email somewhere...  It appears that number is conservative.

-----Original Message-----
From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com] On Behalf Of Barr, Scott
Sent: Thursday, June 03, 2004 11:03 AM
To: nv-l@lists.us.ibm.com
Subject: RE: [nv-l] Stress Testing NV, looking for opinions

One other thing - the use of smartsets and rulesets heavily affects performance. It would be beneficial if your testing included a variety of traps, not the same one over and over. In addition, pushing them through rulesets if possible would be a real good stress test especially if you have rulesets doing a "query smartset" node.

 

Would you be willing to share your script that generates the traps? I am interested in doing the same thing.

---

From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com] On Behalf Of Brett Coley
Sent: Thursday, June 03, 2004 10:44 AM
To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] Stress Testing NV, looking for opinions

That sounds like a valid way to test, but I'm thinking

you may want to throw in some more randomness, maybe

some heavier peaks.   Sounds like the 250 in 50 secs are

dealt with ok in their 10 minute window, but what happens

with a burst of 1000 thrown into the mix?

 

Regards,

Brett

bcoley@us.ibm.com

Tivoli Software/IBM

 

 

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