Nav-users Mars 2014

nav-users@lister.sikt.no

8 participants
14 discussions

navcron powersupplywatch.py
by Mischa Diehm 25 Mar '14

25 Mar '14

Hi, I have a problem with /usr/lib/nav/powersupplywatch.py: I get the following error runninng this script as user navcron: [2014-03-24 18:11:51,243] [DEBUG] Allocate SNMP-handle for cat-XXX-vl-742.pz.p.unibas.ch [2014-03-24 18:11:51,244] [DEBUG] Polling cat-XXX-vl-742.pz.p.unibas.ch: WS-C2960G-8TC-L - Power Supply 0 [2014-03-24 18:11:51,244] [DEBUG] Stored state = Unknown; polled state = Unknown [2014-03-24 18:11:51,247] [DEBUG] Allocate SNMP-handle for cat-XXX-vl-742.pz.p.unibas.ch snmp_open: Unknown host (10.XX.XX.186:161) [2014-03-24 18:11:51,247] [ERROR] snmp_open: Unknown host (10.XX.XX.186:161) Traceback (most recent call last): File "/usr/lib/nav/powersupplywatch.py", line 390, in <module> File "/usr/lib/nav/powersupplywatch.py", line 174, in main File "/usr/lib/nav/powersupplywatch.py", line 244, in check_psus_and_fans File "/usr/lib/nav/powersupplywatch.py", line 275, in get_snmp_handle File "/usr/lib/pymodules/python2.7/nav/Snmp/pynetsnmp.py", line 66, in __init__ File "/usr/lib/pymodules/python2.7/pynetsnmp/netsnmp.py", line 421, in open pynetsnmp.netsnmp.SnmpError: snmp_open NAV can actually poll the device with snmp. When I delete the device, the next device in the list will fail. It's always device No. 1020 (see below) root@urz-nav-pet:~# sudo -u navcron /usr/lib/nav/powersupplywatch.py -v -d 2>&1| grep Alloc | wc -l 1020 We run Debian 7.4 with root@urz-nav-pet:~# dpkg -l | grep nav ii nav 2+3.15.6-2 all Network Administration Visualized any ideas? -- Mischa Diehm | Network Operations Center (NOC) UniBasel | UniRechenZentrum (URZ) Klingebergstr. 70 | CH-4056 Basel Tel. +41 61 267 1574 | http://urz.unibas.ch

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Migration to new NAV version
by Mischa Diehm 05 Mar '14

05 Mar '14

Hi, we migrated our installation to a new HW and Debian stable (3.14.15-1 -> 3.15.5-1). I got all dump.py data migrated without problems. Now we got a lot of User Accounts and Groups with a lot of different Privilidges attached to them. Is there also a (painless) way of transforming this data into the new installation? Thanks in advance! Mischa -- Mischa Diehm | Network Operations Center (NOC) UniBasel | UniRechenZentrum (URZ) Klingebergstr. 70 | CH-4056 Basel Tel. +41 61 267 1574 | http://urz.unibas.ch

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Hardware recommendation
by Mischa Diehm 05 Mar '14

05 Mar '14

Hi, first of all welcome to the list! we (UniBasel) use NAV for quite some while now and are very pleased with the possibilities NAV gives us. We use Debian as OS with the following Setup: root@urz-nav:~# uname -a Linux urz-nav 2.6.32-5-amd64 #1 SMP Fri May 10 09:44:53 UTC 2013 x86_64 GNU/Linux root@urz-nav:~# cat /etc/debian_version 6.0.7 root@urz-nav:~# dpkg -l | grep nav ii nav 2+3.14.15-1 Network Administration Visualized A problem we have since a while is that our system is permanently under a lot of load (mostly CPU bound) and we haven't really found a way to reduce the pressure. The hardware we use is a hp blade (ProLiant BL460c G6) with: Intel(r) Xeon(r) Processor X5550 (4 Cores/ 8 Threats) (8M Cache, 2.66 GHz, 6.40 GT/s Intel(r) QPI) and: root@urz-nav:~# free total used free shared buffers cached Mem: 12321700 11673596 648104 0 387768 9123748 At the moment we have 1460 active Devices (mainly Cisco Switches). Around 30 or 40 are OVERDUE in: https://urz-nav/report/lastupdated So my question is, do you have any good experience with HW-systems that are actually dealing with this amount of devices or is there any tuning possibility (without losing functionality) we could try to reduce the pressure on the system? Thanks in advance, Mischa Diehm -- Mischa Diehm | Network Operation Center (NOC) Universitaet Basel | Universitaetsrechenzentrum Klingelbergstr. 70 | CH-4056 Basel | Switzerland Tel. +41 61 267 15 74 | Fax +41 61 267 22 82 | http://urz.unibas.ch

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Announcement: NAV 4.0 beta 5 released
by Morten Brekkevold 03 Mar '14

03 Mar '14

The fifth beta release of the NAV 4.0 series is now available for download at Launchpad: https://launchpad.net/nav/4.0/4.0b5 Here's the changelog summary of today's release: Bugfixes: * Fixed various bugs around the web interface, introduced in previous releases. User-visible features and improvements: * Graph widget now has editable title. Default value is taken from from the displayed graph. * Make global graph controls float on top of viewport when scrolling on a page with heaps of port metrics. * Added the much sought-after button to clear link alerts from the status page. * Front page widgets can now be re-ordered by dragging their anchor icon; the re-order mode button has been removed. * "Add widget" button on the front page was moved to a sliding menu, accessible from the plus icon on the right hand side of the screen. A Debian package has been uploaded to our APT repository. We will likely build and upload a new version of the virtual appliance later today. Please note that there was a problem with the previous version of the appliance, which was reported to us and fixed today. As usual, please report bugs at https://launchpad.net/nav/+filebug . Happy beta-NAVing everyone! -- Morten Brekkevold UNINETT AS

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Nav-users Mars 2014