[Pkg-nagios-devel] Bug#268044: marked as done (check_ntp doesn't
handle all ntpq output gracefully)
Debian Bug Tracking System
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Tue Oct 11 14:48:39 UTC 2005
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and subject line Bug#318664: [Pkg-nagios-devel] Bug#285554: acknowledged by developer (check_smtp update)
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>From jeroen at wolffelaar.nl Wed Aug 25 11:25:18 2004
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Date: Wed, 25 Aug 2004 20:25:16 +0200
From: Jeroen van Wolffelaar <jeroen at wolffelaar.nl>
To: Debian Bug Tracking System <submit at bugs.debian.org>
Subject: check_ntp doesn't handle all ntpq output gracefully
Message-ID: <20040825182516.GA2675 at wolffelaar.nl>
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Package: nagios-plugins
Version: 1.3.1.0-9
Severity: normal
mordor:/etc/nagios# ntpq -np square
remote refid st t when poll reach delay offset jitter
==============================================================================
+131.211.32.72 131.211.81.10 2 u 600 1024 377 0.344 0.523 1.230
*131.211.80.155 PPS(0) 2 u 83 1024 377 0.810 0.482 0.043
x131.211.22.28 131.211.22.26 4 u 905 1024 377 1.284 -118.59 0.127
-131.211.4.6 193.67.79.202 2 u 76 1024 377 0.291 1.346 0.224
+131.211.4.5 131.211.80.155 3 u 928 1024 377 0.238 0.678 0.008
mordor:/etc/nagios# /usr/lib/nagios/plugins/check_ntp -H square
Use of uninitialized value in concatenation (.) or string at /usr/lib/nagios/plugins/check_ntp line 308.
NTP UNKNOWN: Jitter too high
mordor:/etc/nagios#
Apparantly, this beast of a regex:
/^(\*|o)([-0-9.\s]+)\s+([-0-9A-Za-z.]+)\s+([-0-9.]+)\s+([lumb]+)\s+([-0-9m.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)\s+([-0-9.]+)/
fails to match, and $jitter will then continue undefined without any errorchecking.
--Jeroen
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.3
Locale: LANG=nl_NL.UTF-8 at euro, LC_CTYPE=nl_NL.UTF-8 at euro
Versions of packages nagios-plugins depends on:
ii bind9-host [host] 1:9.2.3+9.2.4-rc5-1 Version of 'host' bundled with BIN
ii dnsutils 1:9.2.3+9.2.4-rc5-1 Clients provided with BIND
ii fping 2.4b2-to-ipv6-8 sends ICMP ECHO_REQUEST packets to
ii libc6 2.3.2.ds1-13 GNU C Library: Shared libraries an
ii libldap2 2.1.30-2 OpenLDAP libraries
ii libmysqlclient10 3.23.56-2 LGPL-licensed client library for M
ii libnet-snmp-perl 4.0.3-1 Script SNMP connections
ii libpq3 7.4.3-3 Shared library libpq.so.3 for Post
ii libssl0.9.7 0.9.7d-4 SSL shared libraries
ii netkit-ping [ping] 0.10-9 The ping utility from netkit
ii ntp 1:4.2.0a-11 Network Time Protocol: network uti
ii ntp-simple 1:4.2.0a-11 Network Time Protocol: daemon for
ii ntpdate 1:4.2.0a-11 The ntpdate client for setting sys
ii procps 1:3.2.1-2 The /proc file system utilities
ii qstat 2.5c-3 Command-line tool for querying qua
ii radiusclient1 0.3.2-6 /bin/login replacement which uses
ii smbclient 3.0.5-1 a LanManager-like simple client fo
ii snmp 5.1.1-2 NET SNMP (Simple Network Managemen
-- no debconf information
--
Jeroen van Wolffelaar
jeroen at wolffelaar.nl
http://jeroen.A-Eskwadraat.nl
---------------------------------------
Received: (at 268044-close) by bugs.debian.org; 11 Oct 2005 14:18:17 +0000
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Date: Tue, 11 Oct 2005 10:17:44 -0400
From: sean finney <seanius at debian.org>
To: Steve Greenland <steveg at moregruel.net>,
Jeroen van Wolffelaar <jeroen at wolffelaar.nl>,
318664-close at bugs.debian.org, 268044-close at bugs.debian.org,
318664-submitter at bugs.debian.org
Subject: Re: Bug#318664: [Pkg-nagios-devel] Bug#285554: acknowledged by developer (check_smtp update)
Message-ID: <20051011141744.GA19035 at seanius.net>
References: <20051009212753.GH10099 at A-Eskwadraat.nl> <20051010122854.GA600 at moregruel.net> <20051009140114.GA21043 at seanius.net> <20041214014158.GA16225 at wolffelaar.nl> <handler.285554.D285554.11288665068888.notifdone at bugs.debian.org> <20051009161518.GD10099 at A-Eskwadraat.nl> <20051009204037.GA24548 at seanius.net> <20051009212753.GH10099 at A-Eskwadraat.nl> <20051011080312.GA15019 at seanius.net> <20051011134127.GB5751 at moregruel.net>
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hi steve,
On Tue, Oct 11, 2005 at 08:41:27AM -0500, Steve Greenland wrote:
> > for the latter, is using ntpdate really a problem? jeroen: you claim
> > that ntpdate is deprecated, but is it? afaik it's still quite useful
> > in many situations, including this case.
>=20
> Regarding deprecation, see http://www.eecis.udel.edu/~mills/ntp/html/ntpd=
ate.html,
> where the first line reads:
>=20
> "Disclaimer: The functionality of this program is now available
> in the ntpd program. See the -q command line option in the ntpd -
> Network Time Protocol (NTP) daemon page. After a suitable period
> of mourning, the ntpdate program is to be retired from this
> distribution."
yeah, in most cases ntpd is preferable because you don't get
"thunderclap" effects on ntp servers where everyone tries to sync
at once, and it's better in general to sync in little bits here
and there rather than lots at once, etc etc. however, there
are some cases where ntpdate can be handy, such as for laptops
or machines that are frequently powered off.
> But as I wrote in the initial bug report, the whole concept of using
> offset from the Nagios server to determine the quality of time keeping
> on the remote server is misguided. What is interesting is whether or not
> the remote server is synced with its peer(s). Ntpq gives you that info.
> But, as they say on the kernel list, -ENOPATCH, so as far as I'm
> concerned, you can close this report.
unfortunately i don't know enough about ntpq (or ntp in general) to
implement this, so i'll follow the path of least resistance and
close the bug. if anyone now or later objects we can ropen/retitle
the bug appropriately.
sean
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