Re: [HTCondor-users] Request for Guidance on Installing HTCondor Multi-Pool Setup on macOS

[Minjae Ahn <minjae.ahn@xxxxxxxxxxxxxxx>]

I'm currently in the process of deploying HTCondor on a set of macOS-based Mac mini systems, with the goal of configuring a multi-machine pool. I've successfully completed a single-machine installation following the macOS (as root) installation guide. However, I've reached a point where I'm unsure how to transition from a single-machine setup to a full multi-machine configuration.

The installation guide briefly mentions that "other configuration changes" are required for a multi-machine pool but does not provide further details. Additionally, while I've reviewed the Administrative Quick Start Guide, it notes that the get_htcondor tool cannot be used on macOS, and the guidance does not include platform-specific instructions.

My intended topology is:

One Mac acting as Central Manager and Submit host

Several Macs acting as Execute nodes

I would greatly appreciate it if you could point me toward any more detailed configuration instructions or best practices for setting up a multi-machine pool specifically on macOS. Any examples or templates relevant to configuring each role would be especially helpful.

Thank you very much for your support.
-----Original Message-----
From: HTCondor-users <htcondor-users-bounces@xxxxxxxxxxx> On Behalf Of Steffen Grunewald
Sent: Tuesday, July 15, 2025 9:35 AM
To: HTCondor-Users Mail List <htcondor-users@xxxxxxxxxxx>
Subject: Re: [HTCondor-users] Request for Guidance on Installing HTCondor Multi-Pool Setup on macOS

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Hi,

On Tue, 2025-07-15 at 12:42:17 +0000, Minjae Ahn wrote:
> I am currently working on setting up an HTCondor pool using multiple Mac mini systems running macOS.
>
> My intended configuration involves a multi-machine setup with the Central Manager and Submit roles combined on one Mac, and several other Macs assigned as Execute nodes.
>
> The documentation appears to focus primarily on single-machine
> installations, and despite attempting various methods-including using Homebrew, Rosetta, and manual configurations-I have not been successful in getting HTCondor fully operational on macOS.

Where exactly do you get stuck when following the instructions at
 https://htcondor.readthedocs.io/en/latest/getting-htcondor/install-macos-as-root.html
?

The single-machine config should be a good starting point - of course the individual roles will require local modifications. You may use the single-node setup as a test that all services work and can talk to each other, then spread them across multiple machines.

> I would greatly appreciate it if you could provide more detailed guidance or documentation specific to setting up a multi-machine HTCondor pool on macOS, particularly with the Central Manager and Submit roles combined.

Start with the CM as it needs more thought, and add the Submit role later.

Re "more detailed": the manual, last time I checked, had 1000+ pages (and I suspect it won't have shrinked since). You will have to modify more than just two handfuls of settings, to get the most out of this powerful and complex software.

Best,
 S

--
Steffen Grunewald, Cluster Administrator Max Planck Institute for Gravitational Physics (Albert Einstein Institute) Am Mühlenberg 1 * D-14476 Potsdam-Golm * Germany ~~~
Fon: +49-331-567 7274
Mail: steffen.grunewald(at)aei.mpg.de
~~~
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