>Is the Windows platform of Netview multithreaded? Some processes are;
some are not.
> Is there a way to control which devices are polled for this data? Yes,
that's controlled by what's in \usr\ov\conf\snmpCol.conf. You can edit
that directly if you know the syntax or use collect.exe from a command
window. The MIB data collection is also launchable from the GUI, Tools -->
MIB-->Collect
I have to agree with Steven about DNS. netmon, and all the rest of
NetView's processes and daemons use the system calls, gethostbyaddr and
gethostbyname to resolve names. That means that the calling process waits
while the OS decides what the name is. Now, I don't know the guts of
Windows well enough to tell you how that's done, but in UNIX it is a serial
search of your hosts file when you have one, and most OS's do not cache the
file, but re-read it every time. S-L-O-W. I'd be willing to bet that
could be the cause of your unresponsive netmon when you try to do a
demandpoll.
James Shanks
Level 3 Support for Tivoli NetView for UNIX and Windows
Tivoli Software / IBM Software Group
"Skokan, Paul"
<Paul.Skokan@neta
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us.ibm.com
Subject
RE: [nv-l] Polling Question
06/06/2006 04:51
PM
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CPUs on the server are no where near pegged...In fact, they are running at
about 3% and peaking at about 6%.
Is the Windows platform of Netview multithreaded?
I also took a sniffer capture of some of the traffic. Netview is polling
data such as interface errors, interface octets, etc. Is there a way to
control which devices are polled for this data?
Paul
-----Original Message-----
From: Stephen Hochstetler [mailto:shochste@us.ibm.com]
Sent: Tuesday, June 06, 2006 1:30 PM
To: nv-l@lists.us.ibm.com
Subject: RE: [nv-l] Polling Question
with 900 nodes in a local hosts file it is likely you are
experiencing high CPU? You have a dual CPU box, do you have tools
that will show how the CPU usage is on each? If you are total at 50%,
could that mean that netmon is pegged one of the CPUs? In the past I
did this on a NetView server on a 4-way. When I switched from a large
hosts file to a caching DNS configuration my netmon CPU usage went
from 100% (of a single CPU) down to 6%.
I suggest you build a DNS on your Windows machine or one on the same
subnet and get rid of your hosts file. Having DNS co-exist on your
NetView server is the best.
Stephen Hochstetler shochste@us.ibm.com
International Technical Support Organization at IBM
Office - 512-838-6198 (t/l 678) FAX - 512-838-6931
http://www.redbooks.ibm.com
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