[rancid] RANCID pulls hourly diff off NEXUS 5500 despite no changes

[Hughes, Doug]

My rancid hasn't been updated in a while, but it should be mostly similar, still

There's a WriteTerm subroutine that is responsible for processing the show running-config execution. Looks under there for something like:
   # some versions have other crap mixed in with the bits in the
    # block above
    /^! (Last configuration|NVRAM config last)/ && next;

You could just modify that line and add between the t of last and the closing ')', "|^Time: ") (without the quotes)

Or add another line under:
# Dog gone Cool matches to process the rest of the config
/^Time: / && next;

You may have to adjust for spaces or indentation in the output.


From: Pete Boynton [mailto:boynton.pete at gmail.com]
Sent: Wednesday, October 17, 2012 11:51 AM
To: Hughes, Doug
Cc: rancid-discuss at shrubbery.net
Subject: Re: [rancid] RANCID pulls hourly diff off NEXUS 5500 despite no changes

OK then this happens during the show running config section
On Wed, Oct 17, 2012 at 11:10 AM, Hughes, Doug <Douglas.Hughes at deshawresearch.com<mailto:Douglas.Hughes at deshawresearch.com>> wrote:
You should have lines beginning with a prefix around it..

Like !Flash: or !BootFlash: or !Image: or something like that...



From: Pete Boynton [mailto:boynton.pete at gmail.com<mailto:boynton.pete at gmail.com>]
Sent: Wednesday, October 17, 2012 11:08 AM
To: Hughes, Doug
Cc: rancid-discuss at shrubbery.net<mailto:rancid-discuss at shrubbery.net>
Subject: Re: [rancid] RANCID pulls hourly diff off NEXUS 5500 despite no changes

Doug,

Thanks for the quick reply. I am pretty much a RANCID newbie but I want to answer your question:

Which section does it occur in?

How could I find out what section this is happening.

Thanks

On Wed, Oct 17, 2012 at 10:08 AM, Hughes, Doug <Douglas.Hughes at deshawresearch.com<mailto:Douglas.Hughes at deshawresearch.com>> wrote:
 Is it part of Show Ver or other? If you go into that section in the rancid file you can add a regex match to discard Time:

For instance, go to sub ShowVersion
Scroll down and you'll see a ton of regular expressions.
Add a new one like this:
# ignore time changes to avoid hourly spam
/^Time: / && next;

Put that line in whatever section is generating the annoying timestamp.


From: rancid-discuss-bounces at shrubbery.net<mailto:rancid-discuss-bounces at shrubbery.net> [mailto:rancid-discuss-bounces at shrubbery.net<mailto:rancid-discuss-bounces at shrubbery.net>] On Behalf Of Pete Boynton
Sent: Wednesday, October 17, 2012 9:50 AM
To: rancid-discuss at shrubbery.net<mailto:rancid-discuss at shrubbery.net>
Subject: [rancid] RANCID pulls hourly diff off NEXUS 5500 despite no changes

Hello,

We are running version of 2.3.8 of RANCID. The problem we are having is that every hour RANCID detects a change in the config and so it posts a new page even though no chance has occurred. It detects the line:

!Time: Wed Oct 17 06:00:06 2012


has changed from the hour before, so I guess technically a change has occurred and RANCID is doing what it was designed to do. However we are getting spammed with versions that really don't tell us when an important change has been made. This is only a problem on the NEXUS switches. Everything else works fine.

Question:

1. Is there a way to tell RANCID to ignore the line that begins with !Time?

Thanks for any help you can give

Pedro


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