[rancid] persistent alerts - but nothing was changed ... ?

[heasley]

Tue, Jul 16, 2013 at 08:28:10AM -0600, Daniel Schmidt:
> Odd, I don't have many issues.  On the subject of white space, I believe it
> was John Jetmore who proposed this white space fix, is it in your code?
> 
> #########################
> --- nxrancid-238-dist   2012-06-14 10:58:55.000000000 -0500
> +++ nxrancid-238-local  2012-06-14 11:00:00.000000000 -0500
> @@ -380,7 +380,7 @@
>         s/        Draw /  /;
>         s/ ----------- /  /;
>         s/        N\/A  /  / ||
> -       s/ \d+ W /  /;          # Does not chop enough to line up.
> +       s/ [ \d]{9} W /  /;             # Does not chop enough to line
> up. (does now)
> 
>         /actual draw/ && next;  # Drop changing total power output.
> 
> ###########################

ShowEnvPower currently looks like this (from Zenon Mousmoulas/myself), which
I hope fixes the problem for folks:

# This routine parses "show environment power"
sub ShowEnvPower {
    print STDERR "    In ShowEnvPower: $_" if ($debug);

    while (<INPUT>) {
        tr/\015//d;
        last if (/^$prompt/);
        next if (/^(\s*|\s*$cmd\s*)$/);
        next if (/^\s*\^\s*$/); 
        return(1) if /Line has invalid autocommand /;
        return(1) if /(Invalid input detected|Type help or )/;
        return(1) if (/\% Invalid command at /);
        return(-1) if (/\% Permission denied/);
        return(-1) if (/command authorization failed/i);

# Cut out Actual Output/Draw.
#Power                              Actual        Total
#Supply    Model                    Output     Capacity    Status
#                                 (Watts )     (Watts )
#-------  -------------------  -----------  -----------  --------------
#1        ------------                 0 W          0 W     Absent
#3                                   749 W       5480 W     Ok
#                                  Actual        Power
#Module    Model                     Draw    Allocated    Status
#                                 (Watts )     (Watts )
#-------  -------------------  -----------  -----------  --------------
#2        NURBURGRING                N/A          573 W    Powered-Up
#fan1                                N/A          720 W    Powered-Up
        if ( /(.* +)(\d+ W)( +\d+ W.*)/) {
            $_ = sprintf("%s%-". length($2)."s%s\n", $1, "", $3);
        }

        /actual draw/ && next;  # Drop changing total power output.

        s/ +$//;        # Drop trailing ' '
        ProcessHistory("COMMENTS","","","!Env: $_");
    }
    ProcessHistory("COMMENTS","","","!\n");
    return(0);
}

> 
> 
> 
> On Mon, Jul 15, 2013 at 11:06 PM, Chris Moody <chris at node-nine.com> wrote:
> 
> > I see TONS of buggy outputs that cause this same behavior from our Nexus
> > boxes.
> >
> > It's almost entirely due to whitespace changes in outputs.
> >
> > You'd seriously think that the output of something like show commands
> > would be consistent...but I guess that's too hard to do. ;o)
> >
> > -Chris
> >
> >
> >
> > On 7/15/13 5:37 AM, Alan McKinnon wrote:
> >
> >> On 15/07/2013 11:28, Wilkinson, Alex wrote:
> >>
> >>> Hi all,
> >>>
> >>> I am consistently getting rancid alerts (diffs) that config has changed
> >>> on
> >>> a number of Cisco Nexus devices. However, the diffs in the email are
> >>> exactly
> >>> the same each rancid-run(1) and are bogus.
> >>>
> >>> Is there anything that would cause rancid to see bogus diffs ?
> >>>
> >>
> >>
> >> A diff is a diff, and it has content because something is different.
> >> Maybe whitespace.
> >>
> >> If you post one of these diffs, we can help examine it for you.
> >>
> >>
> >>
> >>
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> >
> 
> 
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