Re: [Nagios-users] check_ntp_peer parsing error
On Sat, Jun 29, 2013 at 04:01:55PM +0200, Holger Weiß wrote: JFTR: * Marc Haber mh+nagios-us...@zugschlus.de [2013-06-26 21:22]: I have a system running Debian oldstable with Nagios-Plugins 1.4.15. A few weeks ago, my check_ntp_peer checks have started acting up: $ /usr/lib/nagios/plugins/check_ntp_peer --hostname=2001:1b18:f:4::2 --warning 3 --critical 5 --jwarn 10 --jcrit 20 --twarn 2: --tcrit 3: --swarn 2 --scrit 2 -v 3 candidate peers available synchronization source found Getting offset, jitter and stratum for peer e20a parsing offset from peer e20a: error: unable to read server offset response. parsing jitter from peer e20a: error: unable to read server jitter/dispersion response. parsing stratum from peer e20a: error: unable to read server stratum response. NTP CRITICAL: Offset unknown, jitter=-1,00, stratum=-1, truechimers=6| jitter=-1,00;10,00;20,00;0,00 stratum=-1;2;2;0;16 truechimers=6;0;0;0 This is probably caused by a bug in Force10 switches mentioned here: http://news.ntppool.org/2013/06/ipv6-monitoring-problems-for-g.html Due to that bug, the check_ntp_peer requests got duplicated on their way to the server, and the server therefore sent multiple responses per request. check_ntp_peer then stumbled over those duplicated responses. That's a bug, I'll fix it later today. Thanks to Marc for providing tcpdump output and for his help with tracking the issue down. This was really fun to investigate. Thanks for help ans inspiration. Greetings Marc -- - Marc Haber | I don't trust Computers. They | Mailadresse im Header Mannheim, Germany | lose things.Winona Ryder | Fon: *49 621 31958061 Nordisch by Nature | How to make an American Quilt | Fax: *49 621 31958062 -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
Re: [Nagios-users] check_ntp_peer parsing error
JFTR: * Marc Haber mh+nagios-us...@zugschlus.de [2013-06-26 21:22]: I have a system running Debian oldstable with Nagios-Plugins 1.4.15. A few weeks ago, my check_ntp_peer checks have started acting up: $ /usr/lib/nagios/plugins/check_ntp_peer --hostname=2001:1b18:f:4::2 --warning 3 --critical 5 --jwarn 10 --jcrit 20 --twarn 2: --tcrit 3: --swarn 2 --scrit 2 -v 3 candidate peers available synchronization source found Getting offset, jitter and stratum for peer e20a parsing offset from peer e20a: error: unable to read server offset response. parsing jitter from peer e20a: error: unable to read server jitter/dispersion response. parsing stratum from peer e20a: error: unable to read server stratum response. NTP CRITICAL: Offset unknown, jitter=-1,00, stratum=-1, truechimers=6| jitter=-1,00;10,00;20,00;0,00 stratum=-1;2;2;0;16 truechimers=6;0;0;0 This is probably caused by a bug in Force10 switches mentioned here: http://news.ntppool.org/2013/06/ipv6-monitoring-problems-for-g.html Due to that bug, the check_ntp_peer requests got duplicated on their way to the server, and the server therefore sent multiple responses per request. check_ntp_peer then stumbled over those duplicated responses. That's a bug, I'll fix it later today. Thanks to Marc for providing tcpdump output and for his help with tracking the issue down. Holger -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
[Nagios-users] check_ntp_peer parsing error
Hi, I have a system running Debian oldstable with Nagios-Plugins 1.4.15. A few weeks ago, my check_ntp_peer checks have started acting up: $ /usr/lib/nagios/plugins/check_ntp_peer --hostname=2001:1b18:f:4::2 --warning 3 --critical 5 --jwarn 10 --jcrit 20 --twarn 2: --tcrit 3: --swarn 2 --scrit 2 -v 3 candidate peers available synchronization source found Getting offset, jitter and stratum for peer e20a parsing offset from peer e20a: error: unable to read server offset response. parsing jitter from peer e20a: error: unable to read server jitter/dispersion response. parsing stratum from peer e20a: error: unable to read server stratum response. NTP CRITICAL: Offset unknown, jitter=-1,00, stratum=-1, truechimers=6| jitter=-1,00;10,00;20,00;0,00 stratum=-1;2;2;0;16 truechimers=6;0;0;0 The server itself is reachable and gives plausible answers: $ ntpq -c pe 2001:1b18:f:4::2 remote refid st t when poll reach delay offset jitter == +ptbtime1.ptb.de .PTB.1 u 17 64 177 26.8911.663 1.340 +ptbtime2.ptb.de .PTB.1 u 14 64 177 27.015 -0.286 1.271 -ns1.customer-re 192.53.103.104 2 u 18 64 1778.0543.469 0.835 -130.149.220.2 130.133.1.10 2 u 20 64 177 21.243 -0.139 1.154 *ntp0.rrze.ipv6. .GPS.1 u 19 64 177 21.170 -5.249 1.345 -stratum2-2.NTP. 129.70.130.702 u 15 64 177 21.216 -2.147 1.039 $ ntpq -c associations 2001:1b18:f:4::2 ind assid status conf reach auth condition last_event cnt === 1 57862 943a yes yes none candidatesys_peer 3 2 57863 9424 yes yes none candidate reachable 2 3 57864 9324 yes yes none outlyer reachable 2 4 57865 9324 yes yes none outlyer reachable 2 5 57866 963a yes yes none sys.peersys_peer 3 6 57867 9324 yes yes none outlyer reachable 2 $ This behavior does not happen with all of my check_ntp_peer checks. I have not yet found out under which circumstances this behavior happens. For your reference, I have currently opened the ntp server on the IPv6 address listed above for in-depth queries from anywhere. What is going wrong? Is this a bug with check_ntp_peer? Greetings Marc -- - Marc Haber | I don't trust Computers. They | Mailadresse im Header Mannheim, Germany | lose things.Winona Ryder | Fon: *49 621 31958061 Nordisch by Nature | How to make an American Quilt | Fax: *49 621 31958062 -- This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev ___ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null
