The EDS/Oklahoma entry in that list is probably no longer true. I was responsible for it up until being laid off in 2009 and prior to that they were working desperately to change it over to CA Unicenter. The HP integration people handed me a couple of Unicenter scripts that they thought would replace a couple of Xymon test. I gave them chapter and verse of why it would not work. Oddly, I never heard back,..

There's a new entry for Virginia - The Navy Exchange, probably about 2500 hosts, no idea how many tests.

Ralph Mitchell

On Mon, Aug 14, 2023 at 9:47?PM Josh Luthman <josh at imaginenetworksllc.com> wrote:

https://en.wikibooks.org/wiki/System_Monitoring_with_Xymon/User_Guide/The_Xy...

On Mon, Aug 14, 2023 at 3:47?PM Scot Kreienkamp < Scot.Kreienkamp at la-z-boy.com> wrote:

...

We have 1 server, 685 clients, 722 hosts for network tests, 1144 total tests currently, with a cycle time of 60 seconds. XymonD is receiving around 120 messages per second. Display is running as its own dedicated server and network tests are running on a second dedicated server.

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-----Original Message----- From: Xymon <xymon-bounces at xymon.com> On Behalf Of Corentin Labbe Sent: Monday, August 14, 2023 3:37 PM To: xymon at xymon.com Subject: [Xymon] xymon replacement in python

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Hello

I am a big fan of xymon, and I was sad of its current maintainer status. I could have steped as maintainer of it, but the current state of the C code let me fear to lack enough time to masterize it. It will take days just to fix all string management warnings reported by gcc. I tryed to fix some issues and the result could be seen at https://github.com/xython-monitoring/xymon

But I have asked myself, the protocol behing xymon is simple, why not trying to do it in python ? My personnal needs is a little subset of what xymon support, so I started to emulate xymon in python as a PoC just to see how long it will be. In a few hours I was able to emulate basic parts and I was more confident to step further.

So I decided to publish my current code, but I fear to publish something too early, I pray that some people could find it usefull.

I tried to document at maximum, how to test it, but I am very bad at it. You can find the current result at https://github.com/xython-monitoring/xython

I started this some month ago and the milestones are already obsolete, I will update them.

But before progressing farther, I have still some interogation on how to handle some part. It will be kind if some people share some informations about how they use xymon. I am very interested about:

• number of clients (what is the greatest number of clients possible ?)
• number of hosts ? messages per second ?
• number of network tests

Thanks

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For those that don't want to scroll through, 10k and 500k are the biggest but they are certainly outliers.

curl -s "

https://en.wikibooks.org/wiki/System_Monitoring_with_Xymon/User_Guide/The_Xymon_Users_list"|grep Hosts|awk 'NF>1{print $NF}'|sort -V|tail 2247 2406 3062 3949 5339 5372 10940 569869

How many hosts are you looking to monitor?

On Wed, Aug 23, 2023 at 1:51?PM Corentin Labbe <clabbe.montjoie at gmail.com> wrote:

Le Mon, Aug 14, 2023 at 09:36:32PM -0400, Josh Luthman a ?crit :

...

https://en.wikibooks.org/wiki/System_Monitoring_with_Xymon/User_Guide/The_Xy...

...

Thanks for the link

It seems the maximum is 10000 hosts and not on a simple server (but on a cluster of xymon server). Someone is reporting 500000 hosts, but without more information ....

On Wed, 23 Aug 2023, Corentin Labbe wrote:

Le Wed, Aug 23, 2023 at 03:56:27PM -0400, Josh Luthman a =E9crit :

...

For those that don't want to scroll through, 10k and 500k are the biggest but they are certainly outliers.

...

curl -s "

https://en.wikibooks.org/wiki/System_Monitoring_with_Xymon/User_Guide/The= _Xymon_Users_list"|grep Hosts|awk 'NF>1{print $NF}'|sort -V|tail 2247 2406 3062 3949 5339 5372 10940 569869

...

How many hosts are you looking to monitor?

For my own personnal case no more than hundreds.

But for my xython project, I want to know how far I need to bench to reach = (or for dreaming exceed) xymon performance.

But the problem for this list, it state only hosts and not number of tests = per hosts. This is not the same than just 1000 host with just ping test and 1000 hosts= with 10 network tests AND 20 "columns".

I've got about 2500 hosts ( in the xymon sense ). A large chunk are fake hosts for functionnal monitoring. A host ranges from 5 to 25 columns. Tests run every 5 minutes.

There is also a Vpage host that has ~2000 columns.

Load wise, the xymon server is on a VM with 8 vCPU and 8gb of RAM. Only 596Mb of RAM is actually counted as used by processes, and that would include apache and everything else.

The only thing that has been clunky is the multi-server failover, but it works well enough.