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Today's Topics:
1. Re: auto-discovery bumps (Stuart Kendrick)
--- Begin Message ---
Admin-> SNMP Connect Failures is empty ... "No significant events to report"
Manual discovery works fine - I now see a single device in Inventory (see
'netdisco-do discover' output below)
Seems to me that at least one aspect of automated discovery is working fine, in
that bulkwalks return ... but the results are not being inserted into the
database ... what can break between bulkwalks returning and database insertion?
guru% bin/netdisco-do discover -D -d my-workstation
[18523] 2019-09-08 11:22:17 info App::Netdisco version 2.042010 loaded.
[18523] 2019-09-08 11:22:17 info discover: [10.1.2.3] started at Sun Sep 8
04:22:17 2019
[18523] 2019-09-08 11:22:17 debug discover: running with timeout 600s
[18523] 2019-09-08 11:22:17 debug => running workers for phase: check
[18523] 2019-09-08 11:22:17 debug -> run worker check/_base_/0
[18523] 2019-09-08 11:22:17 debug Discover is able to run.
[18523] 2019-09-08 11:22:17 debug => running workers for phase: early
[18523] 2019-09-08 11:22:17 debug -> run worker early/properties/100
[18523] 2019-09-08 11:22:17 debug snmp reader cache warm: [10.1.2.3]
[18523] 2019-09-08 11:22:17 debug [10.1.2.3:161] try_connect with ver: 2,
class: SNMP::Info, comm: <hidden>
[18523] 2019-09-08 11:22:21 debug [10.1.2.3:161] try_connect with ver: 2, new
class: SNMP::Info::Layer3::NetSNMP, comm: <hidden>
[18523] 2019-09-08 11:22:21 debug -> run worker early/properties/100
[18523] 2019-09-08 11:22:21 debug -> run worker early/properties/100
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] device - aliased as 10.128.72.11
[18523] 2019-09-08 11:22:21 debug resolving 1 aliases with max 50 outstanding
requests
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] device - removed 0 aliases
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] aliases - added 1 new aliases
[18523] 2019-09-08 11:22:21 debug -> run worker early/properties/100
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] interfaces - ignoring 1 (lo)
(softwareLoopback)
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] db/ports - removed 0 port entries
from DevicePortPower
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] db/ports - removed 0 port entries
from DevicePortProperties
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] db/ports - removed 0 port entries
from DevicePortVlan
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] db/ports - removed 0 port entries
from DevicePortWireless
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] db/ports - removed 0 port entries
from DevicePortSsid
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] interfaces - removed 0 interfaces
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] interfaces - added 1 new
interfaces
[18523] 2019-09-08 11:22:21 debug => running workers for phase: main
[18523] 2019-09-08 11:22:21 debug -> run worker main/canonicalip/100
[18523] 2019-09-08 11:22:21 debug -> run worker main/entities/100
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] modules - removed 0 chassis
modules
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] modules - 0 chassis components
(added one pseudo for chassis)
[18523] 2019-09-08 11:22:21 debug -> run worker main/neighbors/100
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] neigh - removed 0 outdated manual
topology links
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] neigh - setting manual topology
links
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] neigh - neighbor protocols are
not enabled
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] neigh - processed 0 neighbors
[18523] 2019-09-08 11:22:21 debug -> run worker main/neighbors/100
[18523] 2019-09-08 11:22:21 debug -> run worker main/portpower/100
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] power - 0 power modules
[18523] 2019-09-08 11:22:21 debug -> run worker main/portproperties/100
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] properties/speed - local port lo
already skipped, ignoring
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] properties/ifindex - local port
lo already skipped, ignoring
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] properties - removed 0 ports with
properties
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] properties - added 1 new port
properties
[18523] 2019-09-08 11:22:21 debug -> run worker main/vlans/100
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] vlans - removed 0 port VLANs
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] vlans - added 0 new port VLANs
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] vlans - removed 0 device VLANs
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] vlans - added 0 new device VLANs
[18523] 2019-09-08 11:22:21 debug [10.1.2.3] vlans - discovered for ports and
device
[18523] 2019-09-08 11:22:21 debug -> run worker main/wireless/100
[18523] 2019-09-08 11:22:21 debug -> run worker main/withnodes/0
[18523] 2019-09-08 11:22:21 info discover: finished at Sun Sep 8 04:22:21 2019
[18523] 2019-09-08 11:22:21 info discover: status done: Ended discover for
10.1.2.3
guru%
--sk
From: Nick Nauwelaerts <[email protected]>
Sent: Saturday, September 7, 2019 6:41 AM
To: Stuart Kendrick <[email protected]>;
[email protected]
Subject: RE: auto-discovery bumps
CAUTION: This email originated from outside the Allen Institute. Please do not
click links or open attachments unless you've validated the sender and know the
content is safe.
________________________________
sure,
in the web interface go to to admin -> snmp connect failures. take any device
ip you see there and then run a discovery of that device on the commandline:
netdisco-do discover -DI -d __device_ip__
that should give you a hint why discovery is failing. if it's not something
obvious you see there then please send the output of that command to the
mailing list so we can have a closer look;
good luck.
// nick
From: Stuart Kendrick [mailto:[email protected]]
Sent: Saturday, September 7, 2019 15:11
To:
[email protected]<mailto:[email protected]>
Subject: [Netdisco] auto-discovery bumps
BRIEF
* I have a new NetDisco installation ... but the Inventory is empty
* How might I trouble-shoot the connection between data gathering
(bulkwalks) and insertion into the postgres/netdisco database?
DETAIL
I have a brand-new Netdisco installation:
App::Netdisco 2.42.10
SNMP::Info 3.68
DB Schema 58
PostgreSQL 9.2.24
Perl 5.20.1
Guru% bin/netdisco-backend status
Netdisco Backend [Running]
Guru%
I can bring up the Web interface and log in ...
The host is running lots of Netdisco-related processes ...
guru% ps -ef | grep netdisco
netdisco 1365 1 0 09:29 ? 00:00:00 perl
/home/netdisco/bin/netdisc-web start
netdisco 1370 1365 0 09:29 ? 00:00:00 starman master
--disable-keepalive --user 5001 --group 5000
/home/netdisco/perl5/bin/netdisco-web-fg
netdisco 1385 1 0 09:29 ? 00:00:00 netdisco-backend
netdisco 1389 1385 0 09:29 ? 00:00:00 nd2: master
netdisco 1431 1370 1 09:29 ? 00:00:00 starman worker
--disable-keepalive --user 5001 --group 5000
/home/netdisco/perl5/bin/netdisco-web-fg
netdisco 1432 1370 0 09:29 ? 00:00:00 starman worker
--disable-keepalive --user 5001 --group 5000
/home/netdisco/perl5/bin/netdisco-web-fg
netdisco 1433 1370 0 09:29 ? 00:00:00 starman worker
--disable-keepalive --user 5001 --group 5000
/home/netdisco/perl5/bin/netdisco-web-fg
netdisco 1434 1370 0 09:29 ? 00:00:00 starman worker
--disable-keepalive --user 5001 --group 5000
/home/netdisco/perl5/bin/netdisco-web-fg
netdisco 1435 1370 0 09:29 ? 00:00:00 starman worker
--disable-keepalive --user 5001 --group 5000
/home/netdisco/perl5/bin/netdisco-web-fg
netdisco 1564 1389 0 09:29 ? 00:00:00 nd2: #1 sched: idle
netdisco 1565 1389 0 09:29 ? 00:00:00 nd2: #2 mgr: idle
netdisco 1566 1389 0 09:29 ? 00:00:00 nd2: #3 poll: idle
netdisco 1567 1389 0 09:29 ? 00:00:00 nd2: #4 poll: idle
netdisco 1568 1389 0 09:29 ? 00:00:00 nd2: #5 poll: idle
netdisco 1569 1389 0 09:29 ? 00:00:00 nd2: #6 poll: idle
postgres 1608 1296 0 09:29 ? 00:00:00 postgres: netdisco netdisco
127.0.0.1(35800) idle
postgres 1609 1296 0 09:29 ? 00:00:00 postgres: netdisco netdisco
127.0.0.1(35802) idle
postgres 1611 1296 0 09:29 ? 00:00:00 postgres: netdisco netdisco
127.0.0.1(35804) idle
postgres 1612 1296 0 09:29 ? 00:00:00 postgres: netdisco netdisco
127.0.0.1(35806) idle
postgres 1614 1296 0 09:29 ? 00:00:00 postgres: netdisco netdisco
127.0.0.1(35808) idle
postgres 1616 1296 0 09:29 ? 00:00:00 postgres: netdisco netdisco
127.0.0.1(35810) idle
But the Inventory 'System Information' screen is blank, i.e. the GUI tells me
things like:
0 devices with 0 IPs
0 interfaces of which 0 are up
[...]
The CLI confirms this:
Guru% bin/netdisco-do psql -e 'SELECT ip, dns FROM device'
[3187] 2019-09-06 17:18:50 info App::Netdisco version 2.042010 loaded.
[3187] 2019-09-06 17:18:50 info psql: started at Fri Sep 6 10:18:50 2019
ip | dns
----+-----
(0 rows)
[3187] 2019-09-06 17:18:50 info psql: finished at Fri Sep 6 10:18:50 2019
[3187] 2019-09-06 17:18:50 info psql: status done: psql session closed.
Guru%
Grabbing a pcap, I can see tens of thousands of SNMP bulkwalks against IP
addresses I recognize (mgmt. agents on my Ethernet switches, for example) ...
along with the suitable replies from my gear.
Suggestions for the next trouble-shooting step?
--sk
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