[Xymon] Terabithia or compile

Wed Mar 16 13:19:33 CET 2022

It is true that ntp/ntpdate are not part of RHEL 8 at all.

Has anyone gotten it working with the Terabitha RPMs on RHEL 8 yet?

Sounds like there are code changes that are needed to make the 'ntp' checks
work correctly, beyond just changing the RPM spec?

Thanks!

-- 
Matt Vander Werf

On Thu, Jun 18, 2020 at 11:47 PM David Boyer <davieb at gmail.com> wrote:

> Looks like ntpdate and options are defined in ~/lib/environ.c  and ref. in
> the ~/xymonet/xymonnet.c and ~/xymond/rrd/do_net.c code.    Looks like
> something that needs to be updated, as I'm running a dev xymon server on
> CentOS 8
> and the ntp rpm's are not part of the distro anymore.
>
> Dave
>
> On Thu, Jun 18, 2020 at 11:13 PM Jeremy Laidman <jeremy at laidman.org>
> wrote:
>
>> I think there's an historical reason for the ntp package being required.
>>
>> The xymonnet binary uses ntpdate (via NTPDATE defined in xymonserver.cfg)
>> to be able to monitor the "ntp" service. Specifically it execs "ntpdate -u
>> -q -p 1 <host IP>". The code in do_net.c is written around the output of
>> ntpdate, so chronyc couldn't be used as an alternative without some
>> serious munging of the output. So for a base Xymon server deployment,
>> ntpdate is generally required. [Actually, Xymon can use sntp instead of
>> ntpdate, but this isn't actually relevant to the current situation.]
>>
>> I seem to recall, on earlier (prior to v6) versions of RHEL, that the
>> ntpdate binary used to be part of the ntp (or xntp or xntpd) package. This
>> is probably where the dependency on "ntp" came from.
>>
>> Installing (the package) ntp also brings in ntpdate (as a prerequisite),
>> but installing just ntpdate should not install ntp. This seems to be the
>> case for RHELv7 and v6. I'd say the spec file should match %{?rhel} between
>> 6 and 7 and do "Requires: ntpdate".
>>
>> J
>>
>>
>> On Fri, 19 Jun 2020 at 10:43, Ralph M <ralphmitchell at gmail.com> wrote:
>>
>>> I downloaded the source rpm and installed it.  The spec file for
>>> building the RPMs contains this:
>>>
>>>      %if %{without trunk}
>>>      %if 0%{?rhel} <= 7
>>>      Requires:       ntp
>>>      %endif
>>>      %endif
>>>
>>> So, yeah, it builds into the binary RPMs the requirement to pull in
>>> ntp.  I'm not sure if that can be made into a conditional, to require ntp
>>> OR chrony.
>>>
>>> Ralph Mitchell
>>>
>>>
>>>
>>> On Thu, Jun 18, 2020 at 5:05 PM Root, Paul T via Xymon <xymon at xymon.com>
>>> wrote:
>>>
>>>>
>>>>
>>>>
>>>> ---------- Forwarded message ----------
>>>> From: "Root, Paul T" <Paul.Root at centurylink.com>
>>>> To: "'John Thurston'" <john.thurston at alaska.gov>, "xymon at xymon.com" <
>>>> xymon at xymon.com>
>>>> Cc:
>>>> Bcc:
>>>> Date: Thu, 18 Jun 2020 21:04:50 +0000
>>>> Subject: RE: [Xymon] Terabithia or compile
>>>> That's odd. I did not do that to me.
>>>>
>>>> -----Original Message-----
>>>> From: Xymon <xymon-bounces at xymon.com> On Behalf Of John Thurston
>>>> Sent: Thursday, June 18, 2020 2:24 PM
>>>> To: xymon at xymon.com
>>>> Subject: Re: [Xymon] Terabithia or compile
>>>>
>>>> On 6/17/2020 4:38 PM, John Horne wrote:
>>>> > I used to build from source, but for our CentOS 7 and 8 servers I
>>>> have been
>>>> > using the Terabithia RPMs with no problems. The downside is that,
>>>> like Malcolm
>>>> > Hunter mentioned, I have subsequently applied some local patches -
>>>> sent to the
>>>> > list - so that meant rebuilding the RPMs.
>>>>
>>>> I'm now looking at the Terabithia package for the first time in years.
>>>> My first reaction is, wth?
>>>>
>>>> Installing the xymon package on my server has disabled chronyd and
>>>> installed (but not started) ntpd. why?! If I hadn't read through the
>>>> list of packages it was going to grab, and understand the significance
>>>> of this one, I'd be going blindly forward with an un-synchronized system
>>>> clock.
>>>>
>>>> Now I wonder how many other of my services it has disabled or replaced.
>>>> I feel like I've just walked into a mine field :(
>>>>
>>>>
>>>> --
>>>> Do things because you should, not just because you can.
>>>>
>>>> John Thurston    907-465-8591
>>>> John.Thurston at alaska.gov
>>>> Department of Administration
>>>> State of Alaska
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>>>>
>>>>
>>>> ---------- Forwarded message ----------
>>>> From: "Root, Paul T via Xymon" <xymon at xymon.com>
>>>> To: "'John Thurston'" <john.thurston at alaska.gov>, "xymon at xymon.com" <
>>>> xymon at xymon.com>
>>>> Cc:
>>>> Bcc:
>>>> Date: Thu, 18 Jun 2020 21:04:50 +0000
>>>> Subject: Re: [Xymon] Terabithia or compile
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