I think you may be right, Adam. I'm running walk manually and its just crashing/timing-out in the middle. Took a look at snmp traceoptions on the switch and see that its trying to query non-existing gig interface (I have only 10g interfaces on this switch).
I tried to run the same walk against a standalone switch running a different code and it works just fine.

I have already pending case with jtac on this, will report my findings. But unfortunately all they can do is say something like its a known bug, you are running not the latest and greatest recommended code, so please upgrade.



Roman.

On Thu, Oct 9, 2014 at 4:17 PM, Adam Armstrong <adama@memetic.org> wrote:

If you look at your debug output, the walk of ifXEntry is returning nothing. Run the walk command manually with the correct community and see what you get.

My guess is some horrible virtual-chassis related bug.

Discovery probably only walks ifAlias instead of the whole table.

Adam.

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On 9 October 2014 21:13:08 Roman Romanyak <rromanyak@squarespace.com> wrote:

When I run "ny-tor-sw1-2> show snmp mib walk ifXEntry | match ifAlias | no-more" on the switch, I see descriptions in the output.


Roman.

On Thu, Oct 9, 2014 at 4:03 PM, Adam Armstrong <adama@memetic.org> wrote:
We query both. They are separate tables.

Adam.

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On 9 October 2014 20:28:13 Spencer Gaw <spencerg@frii.net> wrote:

Looks like it's querying ifEntry instead of ifXEntry. ifAlias is not a
part of the ifEntry object.

Regards,

SG

On 10/9/2014 1:12 PM, Roman Romanyak wrote:
> Adam,
>
> I attached the output
>
>
> Thanks,
> Roman.
>
> On Thu, Oct 9, 2014 at 1:50 PM, Adam Armstrong <adama@memetic.org
> <mailto:adama@memetic.org>> wrote:
>
>     I don't see how this is possible. Show output from ./poller.php -h
>     ny-tor-sw1.mgt.peer1.squarespace.net
>     <http://ny-tor-sw1.mgt.peer1.squarespace.net> -m ports -d
>
>     Thanks,
>     Adam.
>
>
>
>     Roman Romanyak <rromanyak@squarespace.com
>     <mailto:rromanyak@squarespace.com>> wrote:
>     thanks again Spencer for helping to troubleshoot this.
>
>     I ran both commands and discovery.php returns all interface
>     descriptions, however poller.php shows nothing. I guess the
>     problem is in this script?
>
>
>     -Roman.
>
>     On Thu, Oct 9, 2014 at 12:00 PM, Spencer Gaw <spencerg@frii.net
>     <mailto:spencerg@frii.net>> wrote:
>
>         Try running:
>
>         ./discovery.php -h ny-tor-sw1.mgt.peer1.squarespace.net
>         <http://ny-tor-sw1.mgt.peer1.squarespace.net> -m ports -d |
>         grep -i ifalias
>
>         and
>
>         ./poller.php -h ny-tor-sw1.mgt.peer1.squarespace.net
>         <http://ny-tor-sw1.mgt.peer1.squarespace.net> -m ports -d |
>         grep -i ifalias
>
>         Do you see your port descriptions in both or just in discovery?
>
>         Regards,
>
>         SG
>
>         On 10/9/2014 9:03 AM, Roman Romanyak wrote:
>
>             Thanks SG.
>
>             Upgraded to the latest version - 0.14.10.5876, and tried
>             to re-add the device  - nothing changed. Attached two
>             screen shots: before and after polling.
>
>             On Thu, Oct 9, 2014 at 10:40 AM, Spencer Gaw
>             <spencerg@frii.net <mailto:spencerg@frii.net>
>             <mailto:spencerg@frii.net <mailto:spencerg@frii.net>>> wrote:
>
>                 Have you tried updating? You're about 60 revisions out
>             of date.
>
>                 Regards,
>
>                 SG
>
>
>                 On 10/9/2014 8:31 AM, Roman Romanyak wrote:
>
>                     Hello,
>
>                     We are using subscriber edition 0.14.9.5815,
>             polling juniper
>                     QFX3500 switch (two switches - Virtual Chassis
>             cluster).
>                     After adding the switch and running discovery.php,
>             interface
>                     descriptions are recognized just fine, however
>             when the device
>                     gets polled for the first time, all interface
>             descriptions get
>                     removed.
>
>                     I checked it with snmpwalk and I can see interface
>                     descriptions in the output.
>
>
>                     Thanks,
>                     Roman.
>
>                     --         Roman Romanyak
>                     Network engineer
>
>
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>
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