[Xymon] Quirky behavior

[Ralph Mitchell]

In xymon-4.3.12 it sends the client-local block for the hostname, if it is
defined OR the block for the OS, correct?? Not a blend of the two, with
host-specific entries overriding the generic entries, right??

Does that change in a later release? I need a better way to manage it...

Ralph Mitchell
On Oct 27, 2014 9:11 PM, "Jeremy Laidman" <jlaidman at rebel-it.com.au> wrote:

> On 28 October 2014 08:45, Gregory J. DeCecco <turranx at hotmail.com> wrote:
>
>> Is this the expected behavior?
>
>
> Yes - if you know what to expect!  ;-)
>
> One of the major performance improvements that Xymon has over its
> predecessor BigBrother, is that it keeps state in memory, and doesn't have
> to re-read its configuration files every 5 minutes.  In some cases, this
> means that changes are not visible immediately, and require either a bit of
> time to pass, or an action to take place.  This is the case for many
> configuration files used by Xymon.
>
>   I can see how this behavior would get in the way of architecting and
>> rapid testing of a client-local.cfg file with multiple OSType, HostClass,
>> and Hostname entries.
>
>
> The contents of the file client-local.cfg is held in memory by xymond, and
> is not updated unless xymond detects a change.  The xymond process can be
> given a HUP signal to tell it to re-check all of its configuration files
> for changes, and reload details as required.
>
> You might find this sequence useful:
>
> On the Xymon server:
>
> 1. Create a new entry for server01 in hosts.cfg
>
> 2. Send xymond a HUP signal:
>
>   sudo -u xymon pkill -HUP xymond$
>
> 3. Run: xymon 127.0.0.1 "hostinfo host=server01 fields=XMH_CLASS,XMH_OS"
>
> This shows the in-memory values for class and OS that xymond uses.  As
> there has never been a client message, the values will be empty.
>
> 4. Run:
>   a) xymon 127.0.0.1 "client server01.bogos bogos"
>   b) xymon 127.0.0.1 "hostinfo host=server01 fields=XMH_CLASS,XMH_OS"
>
> This will show "bogos|bogos".  Note that the "client" message gets nothing
> from client-local.cfg.
>
> 5. Run:
>   a) xymon 127.0.0.1 "client server01.win128 win128"
>   b) xymon 127.0.0.1 "hostinfo host=server01 fields=XMH_CLASS,XMH_OS"
>
> This will show "bogos|win128".  Also, no output from client-local.cfg, but
> if there were an entry for [bogos] or [win128] it would have shown
> something, with preference given to [bogos].
>
> 6. Run:
>   a) touch hosts.cfg
>   b) sudo -u xymon pkill -HUP xymond$
>   c) xymon 127.0.0.1 "hostinfo host=server01 fields=XMH_CLASS,XMH_OS"
>
> This will show "|" - that is, no values.
>
> 7. Run:
>   a) xymon 127.0.0.1 "client server01.win16 win16"
>   b) xymon 127.0.0.1 "hostinfo host=server01 fields=XMH_CLASS,XMH_OS"
>
> This will show "win16|win16".
>
> 8. Run:
>   a) xymon 127.0.0.1 "client server01.aix bogos"
>
> This should give the [aix] section of client-local.cfg.
>
> HTH
>
> J
>
>
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