Fri, Aug 17, 2018 at 10:16:51PM +0300, Pavel Korovin:
> Dear all,
>
> There are several issues with fluctuating data received from Cisco Nexus
> platform (55xx, 77xx):
>
> * accounting logs filenames are named as accounting_log,
> accounting_log.0, etc. These filenames are not filtered out from the
> output
>
> * "show interface transceiver" command introduced in v3.8 produces huge
> (temperature, current, power & voltage); imagine how much output produces
> N5596 with 96 ports/transceivers. I propose to filter out this output
> if FILTER_OSC != NO
>
> * if PAR_COUNT is > 1 (by default, it's 5) and rancid simultaneously runs
> "show version" in multiple VDCs on the same device, bootflash size
slot0 too? or just bootflash?
> values hop between 0 and actual size, with each invocation producing cvs
> commits and change notifications. To reproduce, run "show ver"
> simultaneously on multiple VDCs. It seems that NX-OS requires exclusive
> access to hardware to determine the size of bootflash and fails during
> concurrent access. I cannot offer any better solution than just
> providing a knob to filter out bootflash size fluctuations by setting
> FILTER_OSC = ALL.
>
> Please see the diff attached.
>
> --
> With best regards,
> Pavel Korovin
> $OpenBSD$
>
> Index: lib/nxos.pm.in
> --- lib/nxos.pm.in.orig
> +++ lib/nxos.pm.in
> @@ -186,7 +186,7 @@ EndSoftware:
> }
> }
> EndHardware:
> - if (/^\s+(bootflash|slot0):\s+(\d+) kB(.*)$/) {
> + if (/^\s+(bootflash|slot0):\s+(\d+) kB(.*)$/ && ($filter_osc < 2)) {
> my($tmp) = int($2 / 1024);
> ProcessHistory("COMMENTS","keysort","B1",
> "!Memory: $1: $tmp MB$3\n");
> @@ -496,8 +496,8 @@ sub DirSlotN {
> # Drop bootvar_debug log files
> /\s+bootvar_debug\./ && next;
>
> - # Drop accounting.log
> - /\s+accounting\.log$/ && next;
> + # Drop accounting logs
> + /\s+accounting.log.*/ && next;
was removal of the escape of the . intentional?
> # Drop vtp_debug.log and vtp_debug_old.log CDETS bug CSCuy87611
> /\s+vtp_debug(_old)?\.log$/ && next;
> @@ -574,6 +574,9 @@ sub ShowIntTransceiver {
> return(-1) if (/No token match at /); # 1000v
> return(-1) if (/\% Permission denied/);
> return(-1) if (/command authorization failed/i);
> +
> + # filter out oscillating data from transceivers if FILTER_OSC != NO
> + next if (/(Temperature|Current|Power|Voltage)\s+:/ && ($filter_osc >=
> 1));
The ones that I have access to, do not include this. :) It seems to always
be approperiate to filter this, so I've removed the FILTER_OSC knob.
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