Juni 2013 - Nav-users - lister.unit.no

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 3.15.0 released
by Morten Brekkevold 17 Okt '13

17 Okt '13

The initial release of the new NAV 3.15 series is now available for download at Launchpad: https://launchpad.net/nav/3.15/3.15.0 This feature release brings many changes to NAV, including, but not limited to: * mod_python is no longer required; mod_wsgi is the new recommended way to deploy the NAV web interface. * Devices' conceptual layering of interfaces is now collected and presented in ipdevinfo. This enables you to, among other things, see which physical ports comprise a port- or etherchannel. Some vendors also use this to show which physical switch-ports are forwarding packets to/from a given VLAN interface. * The Netmap tool has been redesigned and re-engineered. Multiple improvements have been made based on user feedback. * The Netmap contents can now be exported/downloaded as an SVG file, but this feature is currently only supported by the Google Chrome browser. * Multiple parallel links are now indicated by the Netmap by two parallel black markers drawn across the link in question. Details of the underlying links are are now properly displayed when clicking on the link line. * Interactive next-hop neighbor map in new ipdevinfo tab. * "What-if" analysis in new ipdevinfo tab displays devices and organizations that may be affected if the selected device goes down. Based on NAV's topology information. * Images with descriptions can be uploaded and attached to rooms. Useful for, among other things, photo-documenting the contents of wiring closets. * Subcategories have been replaced by cross-category device groups. Arbitrary selections of IP devices can be organized into device groups. * Potentially out-of-date CAM and ARP records are highlighted in Machine Tracker search results. * Community strings are censored in SeedDB IP Device listing. * New program enables streamlined dumping and reloading, with optional filtering, of the NAV PostgreSQL database. This simplifies beta testing of new NAV versions by copying the production database to a test server. * 26 more metrics from APC UPS devices are now collected and graphed. Fixes for various reported bugs: * LP#1055383 (netmap saves a new view when it should update view) * LP#1057423 (netmap algorithm indicator turns red when clicking on something in left bar) * LP#1062203 (ipdevpoll job configuration description) * LP#1165039 (Selecting a datasource for bulk threshold config intermittently fails with "internal server error") * LP#1169926 (Replace mod_python with Django/WSGI) * LP#1213818 (LDAP authentication crashes on non-ASCII usernames and/or passwords) * LP#1222666 ("Uptime" in ipdevinfo never resets) There are also various dependency changes, documented in the release notes. Please report bugs at https://launchpad.net/nav/+filebug Binary packages for Debian will be made available as soon as possible. The Debian package is maintained by Morten Werner Forsbring, on commission from UNINETT. Happy NAVing everyone! -- Morten Brekkevold UNINETT AS

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Device Uplink
by Bruno Galindro da Costa 01 Aug '13

01 Aug '13

What is the process that discover device's uplink? Is /usr/local/nav/bin/navtopology? Is it possible to put it's execution in debug mode? I've some devices that not have uplink information after added. Whitout this information, netmap can't draw it. -- Att. Bruno Galindro da Costa

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Announcement: NAV 3.14.159265 released
by Morten Brekkevold 02 Jul '13

02 Jul '13

NAV 3.14.159265, another maintenance release of the endless NAV 3.14 series is now available for download at Launchpad: https://launchpad.net/nav/3.14/3.14.159265 This release rolls back changes to the camlogging system that were made previously in the 3.14 series.. These changes caused cam records to be created erroneously and also a massive load increase on the server NAV is running on. See LP#1195206 for more details. ** If you are on 3.14.1592 or 3.14.15926, ** upgrading is HIGHLY recommended. Please report bugs at https://launchpad.net/nav/+filebug Binary packages for Debian will be made available as soon as possible. The Debian package is maintained by Morten Werner Forsbring, on commission from UNINETT. Happy NAVing everyone! -- Morten Brekkevold UNINETT AS

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NAV dashboard teaser
by John-Magne Bredal 01 Jul '13

01 Jul '13

Hi NAV'ers! In an effort to break the silence on this mailing-list I decided to post a teaser of what we're working with regarding new layout and user friendlyness. The attached image shows the last iteration of the front page. The plan is to make it customizable for the individual user by provinding a set of "Navlets" or widgets that show updated information and provide shortcuts to NAV's tools. A user can add, remove and reorder Navlets to create the dashboard he wants. Some of the Navlets are individually configured, for instance to display the graph or the status the user finds most interesting. A Navlet can be set to auto-update periodically so that the dashboard can be used on always on screens in network monitoring environments. This is a work in progress. Any input from you is appreciated! NB: The logo is a placeholder. Regards -- John-Magne Bredal UNINETT AS

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mcc.py fails due to inconsistency in database
by Ingeborg Hellemo 25 Jun '13

25 Jun '13

Trying to upgrade to 3.14.15926 mcc.py fails somwhere in the middle of moving switch-ports to ports with File "/usr/local/nav/bin/mcc.py", line 29, in <module> start_config_creation(modules, config) File "/usr/local/nav/lib/python/nav/mcc/utils.py", line 65, in start_config_creation result = mod.make_config(config) File "/usr/local/nav/lib/python/nav/mcc/utils.py", line 49, in wrapper result = f(*args, **kwds) File "/usr/local/nav/lib/python/nav/mcc/interfaces.py", line 52, in make_config results.append(start_config_creation(module, configroot)) File "/usr/local/nav/lib/python/nav/mcc/utils.py", line 49, in wrapper result = f(*args, **kwds) File "/usr/local/nav/lib/python/nav/mcc/interfaces.py", line 111, in start_config_creation dbutils.updatedb(rrddatadir, containers) File "/usr/local/nav/lib/python/nav/mcc/utils.py", line 49, in wrapper result = f(*args, **kwds) File "/usr/local/lib/python2.7/site-packages/django/db/transaction.py", line 217, in inner res = func(*args, **kwargs) File "/usr/local/nav/lib/python/nav/mcc/dbutils.py", line 62, in updatedb category=category) File "/usr/local/lib/python2.7/site-packages/django/db/models/manager.py", line 132, in get return self.get_query_set().get(*args, **kwargs) File "/usr/local/lib/python2.7/site-packages/django/db/models/query.py", line 351, in get % (self.model._meta.object_name, num, kwargs)) nav.models.rrd.MultipleObjectsReturned: get() returned more than one RrdFile -- it returned 2! Lookup parameters were {'category': 'port-counters', 'key': 'interface', 'value': '2001418'} I guess there is some inconsistency in database, but where and after what shall I look? --Ingeborg

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Announcement: NAV 3.14.15926 released
by Morten Brekkevold 20 Jun '13

20 Jun '13

NAV 3.14.15926, another maintenance release of the endless NAV 3.14 series is now available for download at Launchpad: https://launchpad.net/nav/3.14/3.14.15926 This release fixes the following reported issues: * LP#1177754 (SRV and OTHER category devices have no uplinks) * LP#1185786 (maintengine.py crashes on any maintenance task with room or location components) * LP#1185848 (VLAN topology direction is wrong in cases of multiple links between two devices) * LP#1186193 (Cricket collects statistics from EDGE switches in NAV 3.14.1592) Please report bugs at https://launchpad.net/nav/+filebug Binary packages for Debian will be made available as soon as possible. The Debian package is maintained by Morten Werner Forsbring, on commission from UNINETT. Happy NAVing everyone! -- Morten Brekkevold UNINETT AS

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