Mars 2007 - Nav-users - lister.unit.no

Question in Configuring NAS
by john.m.bredal＠ntnu.no 28 Mar '07

28 Mar '07

Hi Anna, comments below. Sitat Anna Liu <annaliu(a)us.ibm.com>: > I'm new in NAV. Just recently got it installed on RHEL 4.0. NAV > has > really nice features. It combines network traffic and > server/services > monitors. I'm still in exploring stage. > > Have some questions, appreciate very much if I can get some helps: > > > In Traffic Map I have all 10 routers displayed. Can I put switches > in > containers so that I can have them displayed in Traffic Map also? > > After I added a service for Windows 2000 server with SNMP community > string, I start receiving notifications every 5 minutes. The > notifications are all subjected "Cron <navcron@lanwatch2> > $CRICKETDIR/cricket/collect-subtrees normal". I couldn't figure > out > how to stop sending these notifications after I commented out the > line of > OID from "./cricket/cricket-config/servers/Defaults:OID loadnix", and > deleted the server and service from "Edit Database", but still > receiving > it.. Detail contents are listing here: > > ================================== > Error and the lines leading up to it: > [24-Mar-2007 10:30:08 ] Retrieved data for vlan44 (41): > 10438892353644,94403720713501,0,0,3589469349,3346250220 > [24-Mar-2007 10:30:08 ] Retrieved data for vlan48 (42): > 1458405062399,605868363637,0,0,1957792583,3119005860 > [24-Mar-2007 10:30:08 ] Retrieved data for users (): 1 > [24-Mar-2007 10:30:08 ] Retrieved data for processes (): 66 > [24-Mar-2007 10:30:08*] Could not resolve OID for loadnix > *snip* The Cricket statistics for servers is something we consider removing from NAV altogether. The reason for this is that it is quite impossible to create good generic config for servers in Cricket, and that the attempt NAV does spur a lot of errors . I strongly suggest that you make your own cricket-config for server statistics and remove the one present. To remove the existing config, delete the server-directory from $cricket/cricket-config, and edit the cricket-config/.nav-file (mind the dot) and remove servers from the dirs-variable. This will make sure the config will not be recreated. Then run compile from $cricket/cricket as navcron (sudo navcron ./compile). However, we are working on a new version of the script that makes cricket-config. This version will combine the advantages of the NAV-database and user-customization in a much better way than today. Both we and, I hope, our users look forward to this. :) Yours, -- John-Magne Bredal NTNU

2 1

Cricket Collections
by gwc2004＠gmail.com 14 Mar '07

14 Mar '07

I am getting these errors in my collector logs. Cricket isn't collecting from some router due to an snmp.pm error. [14-Mar-2007 08:48:05 ] Retrieved data for fastethernet0_0 (2): 6138752282,12888242849,9301,0,31547813,3181737 1 Use of uninitialized value in join or string at /usr/local/nav/cricket/cricket/lib/snmp.pm line 91. Use of uninitialized value in join or string at /usr/local/nav/cricket/cricket/lib/snmp.pm line 91. [14-Mar-2007 08:48:05 ] Retrieved data for serial0_0_0 (1): U,U,3482,0,41524607,48270269 [14-Mar-2007 08:48:05 ] Some data is missing for serial0_0_0 (1). [14-Mar-2007 08:48:05 ] Retrieved data for fastethernet0 (2): 1069185963,1532015524,4,0,6113558,5119441 Use of uninitialized value in join or string at /usr/local/nav/cricket/cricket/lib/snmp.pm line 91. Use of uninitialized value in join or string at /usr/local/nav/cricket/cricket/lib/snmp.pm line 91. [14-Mar-2007 08:48:05 ] Retrieved data for serial0 (1): U,U,1,0,5381390,6335406 [14-Mar-2007 08:48:05 ] Some data is missing for serial0 (1). [14-Mar-2007 08:48:05 ] Retrieved data for fastethernet0_0 (2): 5700649910,1889727304,34257,0,13426331,1013722 3 Use of uninitialized value in join or string at /usr/local/nav/cricket/cricket/lib/snmp.pm line 91. Use of uninitialized value in join or string at /usr/local/nav/cricket/cricket/lib/snmp.pm line 91. [14-Mar-2007 08:48:05 ] Retrieved data for serial0_0_0 (1): U,U,1006540,0,10856589,14524104 [14-Mar-2007 08:48:05 ] Some data is missing for serial0_0_0 (1). I read about a different snmp.pm or snmpUtils.pm that I could use. Anyone have any input on that? >From gwc2004 at gmail.com Wed Mar 14 12:57:59 2007 From: gwc2004 at gmail.com (Greg Cooper) Date: Wed Mar 14 18:58:06 2007 Subject: [Nav-users] Yet Another Cricket Question Message-ID: <4ddd24660703141057g18f111c6k3499310c2c63becf(a)mail.gmail.com> Hey, I figured out some problems I had with statistical collection and Cricket. I need to make the target types for all my serial interfaces 'standard-interface" instead of them using the --default-- of snmpv2-interface. I can change the targets files manually, but how do I keep makecricketconfig.pl from rewriting them and breaking them? Or more to the point, how do I make the makecricketconfig.pl script do this for me? Thanks! Greg >From morten.brekkevold at uninett.no Thu Mar 15 11:59:46 2007 From: morten.brekkevold at uninett.no (Morten Brekkevold) Date: Thu Mar 15 11:59:51 2007 Subject: [Nav-users] getDeviceData Java errors In-Reply-To: <4ddd24660703100549m38e8bf53l858b508ce07b4069(a)mail.gmail.com> References: <4ddd24660703100549m38e8bf53l858b508ce07b4069(a)mail.gmail.com> Message-ID: <45F92722.1080508(a)uninett.no> Greg Cooper wrote, On 10-03-2007 14:49: > I have a stock installation of NAV 3.2.1 on a CentOS 4.4 box. I am seeing > this in the getDeviceData-stderr.log. Any idea what it means? > > java.lang.NullPointerException > at org.postgresql.jdbc2.AbstractJdbc2Statement.execute( > AbstractJdbc2Statement.java:53) > at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( > AbstractJdbc1Statement.java:273) > at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( > AbstractJdbc1Statement.java:259) > at no.ntnu.nav.Database.Database.update(Database.java:1004) > at OidTester.doTest(OidTester.java:308) > at OidTester.oidTest(OidTester.java:43) > at QueryNetbox.run(QueryNetbox.java:722) > java.lang.NullPointerException > at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( > AbstractJdbc1Statement.java:274) > at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( > AbstractJdbc1Statement.java:259) > at no.ntnu.nav.Database.Database.update(Database.java:1004) > at no.ntnu.nav.Database.Database.update(Database.java:989) > at > no.ntnu.nav.getDeviceData.dataplugins.Swport.SwportHandler.handleData( > SwportHandler.java:305) > at DataContainersImpl.callDataHandlers(DataContainersImpl.java:69) > at QueryNetbox.run(QueryNetbox.java:806) These are two NullPointerExceptions inside the PostgreSQL JDBC driver, although I cannot say why they occur. The first happens as getDeviceData tries to update the database to register that a box supports a given SNMP OID. The second happens as NAV tries to update an entry in the swport table. You'd have to look at the code of the JDBC driver to be able to see what could cause NullPointerExceptions at those particular lines (AbstractJdbc2Statement.java:53 and AbstractJdbc1Statement.java:274), but I don't even know which version of the driver you are using. -- mvh Morten Brekkevold UNINETT >From morten.brekkevold at uninett.no Thu Mar 15 12:40:27 2007 From: morten.brekkevold at uninett.no (Morten Brekkevold) Date: Thu Mar 15 12:40:30 2007 Subject: [Nav-users] NAV 3.2.1 from snapshot on ubuntu server problem In-Reply-To: <45F511D2.7080401(a)carnet.hr> References: <45F511D2.7080401(a)carnet.hr> Message-ID: <45F930AB.7010902(a)uninett.no> Silvije wrote, On 12-03-2007 09:39: > File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line > 461, in import_module > f, p, d = imp.find_module(parts[i], path) > > ImportError: No module named nav > > > I am using apache2 and configured nav web as virtualhost on port 8888 > > Is this ok to do or not? > > I think I got all dependencies right. PYTHONPATH is set to > /usr/local/nav/lib/python... I'm not sure that Apache/mod_python would pick up on the PYTHONPATH environment variable, you might have to use some mod_python configuration parameters in your Apache config to specify the python path. A better approach for an installation from source on Ubuntu would be to add a file in /etc/python called 'sitecustomize.py', and add something like this to it: import sys sys.path.append('/usr/local/nav/lib/python') This module will be loaded by all Python programs that are run on your Ubuntu system. On another note, you should try the Debian package of NAV on Ubuntu. I think Ubuntu is similar enough to Debian for it to work, and it would make life a lot easier for you (dependency-wise, anyway). -- mvh Morten Brekkevold UNINETT >From morten.brekkevold at uninett.no Thu Mar 15 12:48:56 2007 From: morten.brekkevold at uninett.no (Morten Brekkevold) Date: Thu Mar 15 12:49:02 2007 Subject: [Nav-users] LDAP Authentication In-Reply-To: <4ddd24660703120903gc499f13gfacb5ffaf19eba9c(a)mail.gmail.com> References: <4ddd24660703120903gc499f13gfacb5ffaf19eba9c(a)mail.gmail.com> Message-ID: <45F932A8.5080702(a)uninett.no> Greg Cooper wrote, On 12-03-2007 17:03: > Is anyone using LDAP to authenticate users on the web interface? > > if so, how did you go about doing it? First of all, take a look at this URL: http://metanav.ntnu.no/moin.cgi/LdapAuthentication Second of all, NAVs LDAP authentication ability is somewhat limited yet. It was modeled after the LDAP schema used at NTNU, and isn't quite configurable enough to suit any kind of LDAP schema people might care to implement. Specifically, NAV will grant access to all users in the configured subtree, which is not always desirable. At NTNU there were separate subtrees of user accounts for different systems; there was also a subtree of NAV accounts which contained only a fraction of the total amount of users. It also makes assumptions about which attributes are used to store account names and user names, etc. Fixing this isn't a very high priority at the moment, but if anybody cares to do something about it, the code is located in subsystem/webFront/lib/nav/web/ldapAuth.py . Patches will be greatly appreciated :) -- mvh Morten Brekkevold UNINETT >From morten.brekkevold at uninett.no Thu Mar 15 13:33:08 2007 From: morten.brekkevold at uninett.no (Morten Brekkevold) Date: Thu Mar 15 13:33:11 2007 Subject: [Nav-users] Cricket/NAV problem In-Reply-To: <4ddd24660703121031h716cb122q8cee4ba790fc632(a)mail.gmail.com> References: <4ddd24660703121031h716cb122q8cee4ba790fc632(a)mail.gmail.com> Message-ID: <45F93D04.4080707(a)uninett.no> Greg Cooper wrote, On 12-03-2007 18:31: > I have some netboxes with IP/Hostnames in my /etc/hosts file. Not all my > boxes are in there, but some are. When I browse a netbox and click on a > port to view the statistics, I get an error message like this: [...] > a = rrdtool.info(rrd_filename) > error: opening > '/usr/local/nav/cricket/cricket-config/../cricket-data/switch-ports/10.8.250.3/9_16.rrd': > > No such file or directory > > > The actual path is .../switch-ports/DNS_NAME/9_16.rrd. When I go through > Cricket and browse to that box, I see the stats and it works fine. > Is there something I can do to fix this? I have a theory about what's going on. If you add an IP Device to NAV, and NAV is unable to do a reverse lookup of its IP address, it will use the device's IP address as its sysname (NAV always uses DNS names in the sysname column, for some old, obscure reason). So when makecricketconfig.pl generates cricket configuration, it sees that the name of the box is 10.8.250.3, and creates config based on that. It also registers in the rrd_file table that /usr/local/nav/cricket/cricket-config/../cricket-data/switch-ports/10.8.250.3/9_16.rrd belongs to this box. Then, later, NAV is able to perform a reverse lookup on 10.8.250.3 and sets the sysname of the box to DNS_NAME. Next time makecricketconfig.pl runs, it creates a cricket config entry for DNS_NAME, and ignores/discards the old 10.8.250.3 config. It also registers that /usr/local/nav/cricket/cricket-config/../cricket-data/switch-ports/DNS_NAME/9_16.rrd belongs to this box. So now, the rrd_file table says that there are two RRD files for the 9_16 interface of DNS_NAME. One of them might no longer exist, but it might sort first in the table, making the IP device browser attempt to use this file instead of the real one. I think you can fix it by running "cleanrrds.pl -r", which removes any entry from rrd_file that doesn't correspond to an existing file in the file system. This is just my best guess, though. I don't know why /usr/local/nav/cricket/cricket-config/../cricket-data/switch-ports/10.8.250.3/9_16.rrd disappears, though, as nothing in NAV deletes that. It might never have been created (e.g. makecricketconfig was run, but Cricket was never run until the DNS name had been resolved and makecricketconfig ran again). -- mvh Morten Brekkevold UNINETT >From annaliu at us.ibm.com Sat Mar 24 10:42:11 2007 From: annaliu at us.ibm.com (Anna Liu) Date: Sat Mar 24 18:42:24 2007 Subject: [Nav-users] Question in Configuring NAS Message-ID: <OFA51A9242.C09767EA-ON882572A6.006D229B-882572A8.00613DBD(a)us.ibm.com> I'm new in NAV. Just recently got it installed on RHEL 4.0. NAV has really nice features. It combines network traffic and server/services monitors. I'm still in exploring stage. Have some questions, appreciate very much if I can get some helps: In Traffic Map I have all 10 routers displayed. Can I put switches in containers so that I can have them displayed in Traffic Map also? After I added a service for Windows 2000 server with SNMP community string, I start receiving notifications every 5 minutes. The notifications are all subjected "Cron <navcron@lanwatch2> $CRICKETDIR/cricket/collect-subtrees normal". I couldn't figure out how to stop sending these notifications after I commented out the line of OID from "./cricket/cricket-config/servers/Defaults:OID loadnix", and deleted the server and service from "Edit Database", but still receiving it.. Detail contents are listing here: ================================== Error and the lines leading up to it: [24-Mar-2007 10:30:08 ] Retrieved data for vlan44 (41): 10438892353644,94403720713501,0,0,3589469349,3346250220 [24-Mar-2007 10:30:08 ] Retrieved data for vlan48 (42): 1458405062399,605868363637,0,0,1957792583,3119005860 [24-Mar-2007 10:30:08 ] Retrieved data for users (): 1 [24-Mar-2007 10:30:08 ] Retrieved data for processes (): 66 [24-Mar-2007 10:30:08*] Could not resolve OID for loadnix Error and the lines leading up to it: [24-Mar-2007 10:30:08 ] Retrieved data for users (): 1 [24-Mar-2007 10:30:08 ] Retrieved data for processes (): 66 [24-Mar-2007 10:30:08*] Could not resolve OID for loadnix Use of uninitialized value in pattern match (m//) at /usr/local/nav/cricket/cricket/lib/Common/Util.pm line 69. [24-Mar-2007 10:30:08*] Could not find an OID in m3aninglessrule@whatsup:161:2.0:5:1.0:1/loadnix [24-Mar-2007 10:30:08*] 1 datasources required, 0 results returned! Error and the lines leading up to it: Use of uninitialized value in pattern match (m//) at /usr/local/nav/cricket/cricket/lib/Common/Util.pm line 69. [24-Mar-2007 10:30:08*] Could not find an OID in m3aninglessrule@whatsup:161:2.0:5:1.0:1/loadnix [24-Mar-2007 10:30:08*] 1 datasources required, 0 results returned! [24-Mar-2007 10:30:08 ] Retrieved data for load (): [24-Mar-2007 10:30:08*] No data retrieved. Skipping RRD update. [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. OID: 1.3.6.1.4.1.2021.4.6.0 Error and the lines leading up to it: [24-Mar-2007 10:30:08*] No data retrieved. Skipping RRD update. [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. OID: 1.3.6.1.4.1.2021.4.6.0 [24-Mar-2007 10:30:08 ] Retrieved data for memory (): U,U [24-Mar-2007 10:30:08 ] Some data is missing for memory (). [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. OID: 1.3.6.1.4.1.2021.11.50.0 Regards, Anna Liu - annaliu(a)us.ibm.com (408)927-2846 Tie: 457-2846 >From gwc2004 at gmail.com Mon Mar 26 10:41:18 2007 From: gwc2004 at gmail.com (Greg Cooper) Date: Mon Mar 26 16:41:31 2007 Subject: [Nav-users] Question in Configuring NAS In-Reply-To: <OFA51A9242.C09767EA-ON882572A6.006D229B-882572A8.00613DBD(a)us.ibm.com> References: <OFA51A9242.C09767EA-ON882572A6.006D229B-882572A8.00613DBD(a)us.ibm.com> Message-ID: <4ddd24660703260741v32f39d9bs50573c8036508496(a)mail.gmail.com> About the traffic map: It only shows your layer 3 devices at the top layer, I believe, but if you double click on them or their segments, you can drill down to see the switches. You can then right-click and choose different VLANs to display their layer 2 map. http://metanav.ntnu.no/moin.cgi/TrafficMap That page has a lot of cool tips for using the Traffic Map. As far as your cricket problem down there, I think someone else from the list will have to tell you definitively what the problem is. I can offer the following advice, though: When you make any changes to your cricket installation remember to always su to navcron. Everything under cricket should be owned by the navcron user, I believe. If you want to update your cricket installation, su to navcron, run bin/makecricketconfig.pl, then cricket/cricket/compile. Then the cron jobs will have the updated info to collect on. Regards, Greg On 3/24/07, Anna Liu <annaliu(a)us.ibm.com> wrote: > > I'm new in NAV. Just recently got it installed on RHEL 4.0. NAV has > really nice features. It combines network traffic and server/services > monitors. I'm still in exploring stage. > > Have some questions, appreciate very much if I can get some helps: > > > In Traffic Map I have all 10 routers displayed. Can I put switches in > containers so that I can have them displayed in Traffic Map also? > > After I added a service for Windows 2000 server with SNMP community > string, I start receiving notifications every 5 minutes. The > notifications are all subjected "Cron <navcron@lanwatch2> > $CRICKETDIR/cricket/collect-subtrees normal". I couldn't figure out > how to stop sending these notifications after I commented out the line of > OID from "./cricket/cricket-config/servers/Defaults:OID loadnix", and > deleted the server and service from "Edit Database", but still receiving > it.. Detail contents are listing here: > > ================================== > Error and the lines leading up to it: > [24-Mar-2007 10:30:08 ] Retrieved data for vlan44 (41): > 10438892353644,94403720713501,0,0,3589469349,3346250220 > [24-Mar-2007 10:30:08 ] Retrieved data for vlan48 (42): > 1458405062399,605868363637,0,0,1957792583,3119005860 > [24-Mar-2007 10:30:08 ] Retrieved data for users (): 1 > [24-Mar-2007 10:30:08 ] Retrieved data for processes (): 66 > [24-Mar-2007 10:30:08*] Could not resolve OID for loadnix > > Error and the lines leading up to it: > [24-Mar-2007 10:30:08 ] Retrieved data for users (): 1 > [24-Mar-2007 10:30:08 ] Retrieved data for processes (): 66 > [24-Mar-2007 10:30:08*] Could not resolve OID for loadnix > Use of uninitialized value in pattern match (m//) at > /usr/local/nav/cricket/cricket/lib/Common/Util.pm line 69. > [24-Mar-2007 10:30:08*] Could not find an OID in > m3aninglessrule@whatsup:161:2.0:5:1.0:1/loadnix > [24-Mar-2007 10:30:08*] 1 datasources required, 0 results returned! > > Error and the lines leading up to it: > Use of uninitialized value in pattern match (m//) at > /usr/local/nav/cricket/cricket/lib/Common/Util.pm line 69. > [24-Mar-2007 10:30:08*] Could not find an OID in > m3aninglessrule@whatsup:161:2.0:5:1.0:1/loadnix > [24-Mar-2007 10:30:08*] 1 datasources required, 0 results returned! > [24-Mar-2007 10:30:08 ] Retrieved data for load (): > [24-Mar-2007 10:30:08*] No data retrieved. Skipping RRD update. > [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. > OID: 1.3.6.1.4.1.2021.4.6.0 > > Error and the lines leading up to it: > [24-Mar-2007 10:30:08*] No data retrieved. Skipping RRD update. > [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. > OID: 1.3.6.1.4.1.2021.4.6.0 > [24-Mar-2007 10:30:08 ] Retrieved data for memory (): U,U > [24-Mar-2007 10:30:08 ] Some data is missing for memory (). > [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. > OID: 1.3.6.1.4.1.2021.11.50.0 > > > > Regards, > > Anna Liu - annaliu(a)us.ibm.com > > (408)927-2846 Tie: 457-2846 > _______________________________________________ > nav-users mailing list > nav-users(a)itea.ntnu.no > http://mailman.itea.ntnu.no/mailman/listinfo/nav-users > >From annaliu at us.ibm.com Tue Mar 27 17:53:47 2007 From: annaliu at us.ibm.com (Anna Liu) Date: Wed Mar 28 01:53:56 2007 Subject: [Nav-users] How to remove all databases and restart again In-Reply-To: <4ddd24660703260741v32f39d9bs50573c8036508496(a)mail.gmail.com> Message-ID: <OF9D9A283E.DFD35A88-ON882572AB.00732F6B-882572AB.00834367(a)us.ibm.com> Thank you Greg. That helps. I need to restart from scratch building the topology and database. Is there a way for me to start over again? Regards, Anna Liu - annaliu(a)us.ibm.com (408)927-2846 Tie: 457-2846 "Greg Cooper" <gwc2004(a)gmail.com> 03/26/2007 07:41 AM To Anna Liu/Almaden/IBM@IBMUS cc nav-users(a)itea.ntnu.no Subject Re: [Nav-users] Question in Configuring NAS About the traffic map: It only shows your layer 3 devices at the top layer, I believe, but if you double click on them or their segments, you can drill down to see the switches. You can then right-click and choose different VLANs to display their layer 2 map. http://metanav.ntnu.no/moin.cgi/TrafficMap That page has a lot of cool tips for using the Traffic Map. As far as your cricket problem down there, I think someone else from the list will have to tell you definitively what the problem is. I can offer the following advice, though: When you make any changes to your cricket installation remember to always su to navcron. Everything under cricket should be owned by the navcron user, I believe. If you want to update your cricket installation, su to navcron, run bin/makecricketconfig.pl, then cricket/cricket/compile. Then the cron jobs will have the updated info to collect on. Regards, Greg On 3/24/07, Anna Liu <annaliu(a)us.ibm.com> wrote: I'm new in NAV. Just recently got it installed on RHEL 4.0. NAV has really nice features. It combines network traffic and server/services monitors. I'm still in exploring stage. Have some questions, appreciate very much if I can get some helps: In Traffic Map I have all 10 routers displayed. Can I put switches in containers so that I can have them displayed in Traffic Map also? After I added a service for Windows 2000 server with SNMP community string, I start receiving notifications every 5 minutes. The notifications are all subjected "Cron <navcron@lanwatch2> $CRICKETDIR/cricket/collect-subtrees normal". I couldn't figure out how to stop sending these notifications after I commented out the line of OID from "./cricket/cricket-config/servers/Defaults:OID loadnix", and deleted the server and service from "Edit Database", but still receiving it.. Detail contents are listing here: ================================== Error and the lines leading up to it: [24-Mar-2007 10:30:08 ] Retrieved data for vlan44 (41): 10438892353644,94403720713501,0,0,3589469349,3346250220 [24-Mar-2007 10:30:08 ] Retrieved data for vlan48 (42): 1458405062399,605868363637,0,0,1957792583,3119005860 [24-Mar-2007 10:30:08 ] Retrieved data for users (): 1 [24-Mar-2007 10:30:08 ] Retrieved data for processes (): 66 [24-Mar-2007 10:30:08*] Could not resolve OID for loadnix Error and the lines leading up to it: [24-Mar-2007 10:30:08 ] Retrieved data for users (): 1 [24-Mar-2007 10:30:08 ] Retrieved data for processes (): 66 [24-Mar-2007 10:30:08*] Could not resolve OID for loadnix Use of uninitialized value in pattern match (m//) at /usr/local/nav/cricket/cricket/lib/Common/Util.pm line 69. [24-Mar-2007 10:30:08*] Could not find an OID in m3aninglessrule@whatsup:161:2.0:5:1.0:1/loadnix [24-Mar-2007 10:30:08*] 1 datasources required, 0 results returned! Error and the lines leading up to it: Use of uninitialized value in pattern match (m//) at /usr/local/nav/cricket/cricket/lib/Common/Util.pm line 69. [24-Mar-2007 10:30:08*] Could not find an OID in m3aninglessrule@whatsup:161:2.0:5:1.0:1/loadnix [24-Mar-2007 10:30:08*] 1 datasources required, 0 results returned! [24-Mar-2007 10:30:08 ] Retrieved data for load (): [24-Mar-2007 10:30:08*] No data retrieved. Skipping RRD update. [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. OID: 1.3.6.1.4.1.2021.4.6.0 Error and the lines leading up to it: [24-Mar-2007 10:30:08*] No data retrieved. Skipping RRD update. [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. OID: 1.3.6.1.4.1.2021.4.6.0 [24-Mar-2007 10:30:08 ] Retrieved data for memory (): U,U [24-Mar-2007 10:30:08 ] Some data is missing for memory (). [24-Mar-2007 10:30:08*] Received SNMP response with error code noSuchName. OID: 1.3.6.1.4.1.2021.11.50.0 Regards, Anna Liu - annaliu(a)us.ibm.com (408)927-2846 Tie: 457-2846 _______________________________________________ nav-users mailing list nav-users(a)itea.ntnu.no http://mailman.itea.ntnu.no/mailman/listinfo/nav-users

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LDAP Authentication
by gwc2004＠gmail.com 12 Mar '07

12 Mar '07

Hello, Is anyone using LDAP to authenticate users on the web interface? if so, how did you go about doing it? Thanks! Greg(lok1) >From a.l.prois at usit.uio.no Mon Mar 12 18:20:13 2007 From: a.l.prois at usit.uio.no (=?ISO-8859-1?Q?Asbj=F8rn_Pr=F8is?=) Date: Mon Mar 12 18:20:16 2007 Subject: [Nav-users] LDAP Authentication In-Reply-To: <4ddd24660703120903gc499f13gfacb5ffaf19eba9c(a)mail.gmail.com> References: <4ddd24660703120903gc499f13gfacb5ffaf19eba9c(a)mail.gmail.com> Message-ID: <Pine.LNX.4.63-L.0703121816590.28028(a)klodrik.uio.no> On Mon, 12 Mar 2007, Greg Cooper wrote: > Hello, > > Is anyone using LDAP to authenticate users on the web interface? > > if so, how did you go about doing it? > > Thanks! Yes, we (UiO) uses LDAP for authentication. In /usr/local/nav/etc/webfront/webfront.conf : [ldap] enabled = yes server = ldaps://xxx.uio.no binddn= cn=yyy,cn=zzz,dc=uio,dc=no And if your ldap requires it (ours do), you allso need correct settings in /etc/openldap/ldap.conf. Like path to TLS_CACERT etc. -Asbj?rn- >From gwc2004 at gmail.com Mon Mar 12 12:31:00 2007 From: gwc2004 at gmail.com (Greg Cooper) Date: Mon Mar 12 18:31:11 2007 Subject: [Nav-users] Cricket/NAV problem Message-ID: <4ddd24660703121031h716cb122q8cee4ba790fc632(a)mail.gmail.com> Hello, I have some netboxes with IP/Hostnames in my /etc/hosts file. Not all my boxes are in there, but some are. When I browse a netbox and click on a port to view the statistics, I get an error message like this: Traceback (most recent call last): File "/usr/local/nav/lib/python/nav/web/devBrowser/dispatcher.py", line 100, in handler result = handler.process(request) File "/usr/local/nav/lib/python/nav/web/devBrowser/rrd.py", line 59, in process return datasources(query, session) File "/usr/local/nav/lib/python/nav/web/devBrowser/rrd.py", line 408, in datasources return showGraphs(session) File "/usr/local/nav/lib/python/nav/web/devBrowser/rrd.py", line 380, in showGraphs table.add(html.Image(src=images[index].graphUrl(), name=index), editCell, File "/usr/local/nav/lib/python/nav/rrd/presenter.py", line 399, in graphUrl a = rrdtool.info(rrd_filename) error: opening '/usr/local/nav/cricket/cricket-config/../cricket-data/switch-ports/10.8.250.3/9_16.rrd': No such file or directory The actual path is .../switch-ports/DNS_NAME/9_16.rrd. When I go through Cricket and browse to that box, I see the stats and it works fine. However, I am setting this up to be used by a lot of people at my work who don't want to learn "workarounds" :) Is there something I can do to fix this? Thanks! Greg(lok*) >From jan.bakke.privat at gmail.com Tue Mar 13 13:05:55 2007 From: jan.bakke.privat at gmail.com (Jan Bakke) Date: Tue Mar 13 13:06:10 2007 Subject: [Nav-users] NAV error on CentOS Message-ID: <f2fef6d20703130505t3eb829ecg7621ee1ca7bfb7ce(a)mail.gmail.com> Hi I have just installed NAV on CentOS according to http://metanav.ntnu.no/moin.cgi/InstallingOnRHEL4 CentOS 4.4 NAV nav-3.2.1-1 When I open the web-site the following error shows up; ******************************************************************** Mod_python error: "PythonHeaderParserHandler nav.web" Traceback (most recent call last): File "/usr/lib/python2.3/site-packages/mod_python/apache.py", line 299, in HandlerDispatch result = object(req) File "/usr/local/nav/lib/python/nav/web/__init__.py", line 62, in headerparserhandler nav.web.auth.authenticate(req) File "/usr/local/nav/lib/python/nav/web/auth.py", line 93, in authenticate conn = db.getConnection('navprofile', 'navprofile') AttributeError: 'module' object has no attribute 'getConnection' ******************************************************************** This error is logged in 'messages' Mar 13 11:25:45 testserver kernel: audit(1173781545.016:13): avc: denied { read } for pid=4373 comm="httpd" name="psycopgmodule.so" dev=dm-0 ino=508298 scontext=root:system_r:httpd_t tcontext=root:object_r:user_home_t tclass=file Mar 13 11:42:52 testserver init: Trying to re-exec init How can i fix this? >From roger.aas at hsh.no Tue Mar 13 13:27:17 2007 From: roger.aas at hsh.no (Roger Aas) Date: Tue Mar 13 13:27:26 2007 Subject: [Nav-users] NAV error on CentOS In-Reply-To: <f2fef6d20703130505t3eb829ecg7621ee1ca7bfb7ce(a)mail.gmail.com> References: <f2fef6d20703130505t3eb829ecg7621ee1ca7bfb7ce(a)mail.gmail.com> Message-ID: <45F698A5.60101(a)hsh.no> Jan Bakke wrote: > Mar 13 11:25:45 testserver kernel: audit(1173781545.016:13): avc: > denied { > read } for pid=4373 comm="httpd" name="psycopgmodule.so" dev=dm-0 > ino=508298 scontext=root:system_r:httpd_t > tcontext=root:object_r:user_home_t > tclass=file > Mar 13 11:42:52 testserver init: Trying to re-exec init > > How can i fix this? You have probably not disabled SELinux like it says in the installation manual. Run this command as root to check: [root@nav3 ~]# sestatus SELinux status: disabled If you get something other than "disabled" you will either have to configure SELinux to work with NAV or disable SELinux. If you want to disable SELinux do this: To just test if this is the problem run this command: [root@nav3 ~]# setenforce 0 and try to reload the webpage. To disable it permanently edit this file: /etc/sysconfig/selinux to say: SELINUX=disabled and reboot the server. - Roger

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Memory leaks in getDeviceData
by morten.brekkevold＠uninett.no 09 Mar '07

09 Mar '07

Some of you have noticed problems with getDeviceData running out of Java heap memory, and then getting out of sync with the PostgreSQL database driver - it ends up doing strange updates to the database. The issue is described in this bug report: http://sourceforge.net/tracker/index.php?func=detail&aid=1675508&group_id=1… For the technically inclined, here's a complete summary: I've traced the problem back to the Java SNMP package provided by drexel.edu. This package is used by the getDeviceData and getBoksMacs NAV processes to perform SNMP queries. The problem is an infinite loop, in which the library sends the same GETNEXT request over and over, and growing a list of SNMP responses until the heap is full. In a getDeviceData context, this problem can occur during OID testing of a device (This is when gDD attempts to figure which SNMP OIDs a new device supports). When the OID tester attempts to query an OID using GETNEXT requests, it uses the Java SNMP package's method for snmpwalking a MIB tree (retrieveMIBTable). If the OID is outside the MIB view of an SNMPv2c device, the device will respond with an SNMPv2 endOfMibView exception. Ufortunately, the retrieveMIBTable method of drexel's Java SNMP package treats this exception as just another value and adds it to the list of responses. Since the exception's object identifier is the same as the one used in the GETNEXT request, the method will continue to issue GETNEXT requests for the same OID until it no longer receives any response, or until it runs out of memory, whichever comes first. I've written two different patches to fix the problem in the Java SNMP Package, and I have submitted these patches to the upstream authors. The simplest patch is available at the aforementioned bug report page, for those who want to apply it themselves. I'm also planning to write a workaround for NAV. It is quite unnecessary for the NAV OID tester to walk entire SNMP tables just to test OID compatibility. Issuing a single GETNEXT request should be enough to determine whether the OID is supported or not. By doing this, the OID tester can avoid using the retrieveMIBTable method of the drexel library entirely. -- mvh Morten Brekkevold UNINETT >From gwc2004 at gmail.com Sat Mar 10 07:49:28 2007 From: gwc2004 at gmail.com (Greg Cooper) Date: Sat Mar 10 14:49:35 2007 Subject: [Nav-users] getDeviceData Java errors Message-ID: <4ddd24660703100549m38e8bf53l858b508ce07b4069(a)mail.gmail.com> Hi all. I have a stock installation of NAV 3.2.1 on a CentOS 4.4 box. I am seeing this in the getDeviceData-stderr.log. Any idea what it means? java.lang.NullPointerException at org.postgresql.jdbc2.AbstractJdbc2Statement.execute( AbstractJdbc2Statement.java:53) at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( AbstractJdbc1Statement.java:273) at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( AbstractJdbc1Statement.java:259) at no.ntnu.nav.Database.Database.update(Database.java:1004) at OidTester.doTest(OidTester.java:308) at OidTester.oidTest(OidTester.java:43) at QueryNetbox.run(QueryNetbox.java:722) java.lang.NullPointerException at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( AbstractJdbc1Statement.java:274) at org.postgresql.jdbc1.AbstractJdbc1Statement.executeUpdate( AbstractJdbc1Statement.java:259) at no.ntnu.nav.Database.Database.update(Database.java:1004) at no.ntnu.nav.Database.Database.update(Database.java:989) at no.ntnu.nav.getDeviceData.dataplugins.Swport.SwportHandler.handleData( SwportHandler.java:305) at DataContainersImpl.callDataHandlers(DataContainersImpl.java:69) at QueryNetbox.run(QueryNetbox.java:806) Thanks! Greg (Lok*) >From gwc2004 at gmail.com Sun Mar 11 10:24:00 2007 From: gwc2004 at gmail.com (Greg Cooper) Date: Sun Mar 11 16:24:04 2007 Subject: [Nav-users] Cricket Question Message-ID: <4ddd24660703110824p1c9406b0q5cf48ae10657dd53(a)mail.gmail.com> Hello, Does anyone know what happens when "collect-subtree normal" is launched every 5 minutes by cron, but it takes 10 minutes to complete running? I see entries in the ~cricket/logs/normal.* logs that seem like cricket is getting the data from each device and port. I am having problems with empty graphs when I look at the statistics, though. I am collecting on about 9700 ports, though. Is that a stupid amount of ports to collect info on? Is there anything I should do after following the RHEL/CentOS installation guide to configure cricket to handle that many ports? I read that collect-subtrees can collect from devices in parallel. How do you configure that? Would that bring down my collect-subtrees runtimes so it would complete in the 5minute cron window? Thanks! Greg (lok*) >From john.m.bredal at ntnu.no Mon Mar 12 07:56:51 2007 From: john.m.bredal at ntnu.no (John-Magne Bredal) Date: Mon Mar 12 07:53:12 2007 Subject: [Nav-users] Cricket Question In-Reply-To: <4ddd24660703110824p1c9406b0q5cf48ae10657dd53(a)mail.gmail.com> References: <4ddd24660703110824p1c9406b0q5cf48ae10657dd53(a)mail.gmail.com> Message-ID: <45F4F9B3.7060504(a)ntnu.no> Greg Cooper wrote: > Hello, > > Does anyone know what happens when "collect-subtree normal" is launched > every 5 minutes by cron, but it takes 10 minutes to complete running? > > I see entries in the ~cricket/logs/normal.* logs that seem like cricket is > getting the data from each device and port. > > I am having problems with empty graphs when I look at the statistics, > though. I am collecting on about 9700 ports, though. Is that a stupid > amount of ports to collect info on? Is there anything I should do after > following the RHEL/CentOS installation guide to configure cricket to handle > that many ports? 9700 ports are a considerable amount. Cricket is rather CPU and I/O demanding, so it depends a bit on your hardware. If you have dual CPU's you may get an increase in performance by configuring Cricket to use several processes. This is done by editing the subtree-sets file (located in the cricket-directory). This file defines the "sets" of directories you collect from. One set equals one process. Try to add one (or more) sets, preferably so that the number of ports in each set is about the same. Also remember to update the $NAVinstall/etc/cron.d/cricket file and add a cron-job for the new sets (the collect-subtrees job), and restart cricket with "nav restart cricket". NB: This will increase the CPU and I/O load on your server considerably. Cricket is not the most efficient program, and for bigger installations it is common to use a dedicated server (or more) for Cricket. At NTNU we are going to test this as we are currently only gathering data from a small subset of our network because of the load on the server. There was a discussion on the cricket-users mailing list some months ago (first post from 21. nov.) regarding this issue. It had the title "Huge Cricket installations". It seems that the forum is down (http://sourceforge.net/mailarchive/forum.php?forum=cricket-users) but if it comes up you can read that thread for more thorough information. > I read that collect-subtrees can collect from devices in parallel. How do > you configure that? Would that bring down my collect-subtrees runtimes so > it would complete in the 5minute cron window? > > Thanks! > > Greg (lok*) > _______________________________________________ > nav-users mailing list > nav-users(a)itea.ntnu.no > http://mailman.itea.ntnu.no/mailman/listinfo/nav-users yours -- John Magne Bredal NTNU, ITEA - Nettgruppa 91897366 / (735)90250 >From silvije.milisic at carnet.hr Mon Mar 12 09:39:46 2007 From: silvije.milisic at carnet.hr (Silvije) Date: Mon Mar 12 09:39:59 2007 Subject: [Nav-users] NAV 3.2.1 from snapshot on ubuntu server problem Message-ID: <45F511D2.7080401(a)carnet.hr> HI all! I have a few questions: Anyone tried to install NAV on Ubuntu server? I have but no luck for now. I get this error when I open https://server:8888/: Mod_python error: "PythonHeaderParserHandler nav.web" Traceback (most recent call last): File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line 287, in HandlerDispatch log=debug) File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line 461, in import_module f, p, d = imp.find_module(parts[i], path) ImportError: No module named nav I am using apache2 and configured nav web as virtualhost on port 8888 Is this ok to do or not? I think I got all dependencies right. PYTHONPATH is set to /usr/local/nav/lib/python... Thanks for any answer, Regards, Silvije >From kjartan.malde at uis.no Mon Mar 12 12:16:14 2007 From: kjartan.malde at uis.no (kjartan.malde(a)uis.no) Date: Mon Mar 12 12:16:18 2007 Subject: [Nav-users] Errormessage from arnold.pl Message-ID: <OF2987456F.94B67E9E-ONC125729C.003CBF90-C125729C.003DE911(a)uis.no> Does anyone know what is wrong when running Arnold from cli. I get following error: Illegal division by zero at /usr/local/nav/bin/arnold.pl line 162. when using command: /usr/local/nav/bin/start_arnold.pl -i 1 -f <file with ip-list> Best regards, -- Kjartan Malde Univ. of Stavanger >From john.m.bredal at ntnu.no Mon Mar 12 12:29:16 2007 From: john.m.bredal at ntnu.no (John-Magne Bredal) Date: Mon Mar 12 12:25:37 2007 Subject: [Nav-users] Errormessage from arnold.pl In-Reply-To: <OF2987456F.94B67E9E-ONC125729C.003CBF90-C125729C.003DE911(a)uis.no> References: <OF2987456F.94B67E9E-ONC125729C.003CBF90-C125729C.003DE911(a)uis.no> Message-ID: <45F5398C.5090602(a)ntnu.no> kjartan.malde(a)uis.no wrote: > Does anyone know what is wrong when running Arnold from cli. I get > following error: > > Illegal division by zero at /usr/local/nav/bin/arnold.pl line 162. > > when using command: /usr/local/nav/bin/start_arnold.pl -i 1 -f <file with > ip-list> > I would like to know the output of the start_arnold.log in $NAVinstall/var/log/arnold. And also the output from arnold.log at the same timestamp. yours -- John Magne Bredal NTNU, ITEA - Nettgruppa 91897366 / (735)90250 >From kjartan.malde at uis.no Mon Mar 12 12:39:54 2007 From: kjartan.malde at uis.no (kjartan.malde(a)uis.no) Date: Mon Mar 12 12:39:58 2007 Subject: [Nav-users] Errormessage from arnold.pl In-Reply-To: <45F5398C.5090602(a)ntnu.no> Message-ID: <OFFDADB940.1EBB2C97-ONC125729C.003F9B9A-C125729C.0040140F(a)uis.no> John-Magne Bredal <john.m.bredal(a)ntnu.no> 12.03.2007 12:29 To kjartan.malde(a)uis.no cc nav-users(a)itea.ntnu.no Subject Re: [Nav-users] Errormessage from arnold.pl kjartan.malde(a)uis.no wrote: > Does anyone know what is wrong when running Arnold from cli. I get > following error: > > Illegal division by zero at /usr/local/nav/bin/arnold.pl line 162. > > when using command: /usr/local/nav/bin/start_arnold.pl -i 1 -f <file with > ip-list> > I would like to know the output of the start_arnold.log in $NAVinstall/var/log/arnold. And also the output from arnold.log at the same timestamp. It seems path to Arnold is given somewhere. It seems to append my paths to some default. /home/malde/testmail is the path to mailfile given in the blocktypes. start_arnold.log ========== NEW LOGENTRY 070312-121758 ========== Got option /home/malde/arnoldip /usr/local/nav/bin/arnold.pl -xdisable -m/home/malde/testmail -r1 -e5 -ucron -f/home/malde/arnoldip ========== NEW LOGENTRY 070312-122922 ========== Got option /home/malde/arnoldip /usr/local/nav/bin/arnold.pl -xdisable -m/home/malde/testmail -r1 -e5 -ucron -f/home/malde/arnoldip arnold.log ========== NEW LOGENTRY 070312-121758 ========== Connected successfully to block. WARNING: Could not find /usr/local/nav/etc/arnold/mailtemplates//home/malde/testmail, no mail will be sent. Using incremental increase in blockdays (default 5). Setting filename = /usr/local/nav/var/arnold//home/malde/arnoldip. ========== NEW LOGENTRY 070312-122923 ========== Connected successfully to block. WARNING: Could not find /usr/local/nav/etc/arnold/mailtemplates//home/malde/testmail, no mail will be sent. Using incremental increase in blockdays (default 5). Setting filename = /usr/local/nav/var/arnold//home/malde/arnoldip. -- Kjartan

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