[Xymon] Checking clients from two proxies simultaneously

[Jeremy Laidman]

Christoph

In the post you mentioned, Henrick said, "You can have as many hosts doing
network tests as you like; as long as they report to the same Hobbit
server, the results will be merged together." By "merged" I think he meant
that different tests for the same target host would be merged together, but
I don't think he meant that results of the same test would be merged
together. He then went on to talk about splitting the network tests between
the two Hobbit systems - something that wouldn't be necessary if they would
be merged.

If you have the same test run from two different Xymon servers, each test
result simply replaces the previous one, so host B's red replaces host A's
green. They're not merged.

One way to handle this is to have two different pseudo-hosts that you test:
X-via-A and X-via-B. Server A has X-via-A in its hosts.cfg and Server B has
X-via-B in its hosts.cfg file. On C, you define X, X-via-A and X-via-B,
using 0.0.0.0 for the pseudo-hosts (and probably for X too, because you
can't connect directly to its IP address anyway). Then you can use
combo.cfg to create a combined test result like:

X.conn = (X\-via\-A.conn || X\-via\B.conn)

You'd probably need to set "noconn" for X in hosts.cfg.

Cheers
Jeremy

On Mon, 12 Jul 2021 at 23:05, Christoph Zechner <zechner at vrvis.at> wrote:

> Hi,
>
> I've got a few clients in a separate subnet which I want to check via
> two xymon servers (= proxies with multiple network interfaces) which
> then send the results to a central xymon server.
>
> Client: X
> Proxy 1: A
> Proxy 2: B
> Xymon Server: C
>
>
> So A and B have their own network checks defined in tasks.cfg [1] for
> multiple networks, in this case "mgmt". Both A and B report their result
> for X to Server C, which works fine, as long as A and B are responsive.
>
> If either A or B fail to successfully connect to X, connection checks on
> C turn red and fail. According to an old mailing list entry [2] all the
> checks' results should be merged at the server, or did I misunderstand?
>
> I thought as long as A or B can connect fine to X, everything in xymon
> should be fine, because after all, target X is up. Is there any other
> way to achieve what I am trying to do?
>
> Thanks in advance!
>
> Best regards
> Christoph Zechner
>
>
>
> [1]
> [xymonnetmgmt]
>      ENVFILE /usr/lib/xymon/server/etc/xymonserver.cfg
>      CMD XYMONNETWORK=mgmt xymonnet --report --ping --checkresponse
> --concurrency=4
>      LOGFILE $XYMONSERVERLOGS/xymonnet.log
>      INTERVAL 5m
>
>
> [2] https://lists.xymon.com/archive/2006-May/006833.html
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>
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