NagioS-Mod-Gearman Help

[cool_oar]

Hello,

I am newbie to Nagios Distributed monitoring and facing challenges when trying to setup distributed monitoring with nagios core and gearman.

• I have a Nagios Core server running and I have another server where I want to run a Gearman server to distribute checks.

• Both the servers are able to communicate with each other on port 4730

• I have followed the instructions provided here https://github.com/NagiosEnterprises/nagios-mod-gearman to install the Gearman Module on my Nagios Core and install a Gearman Worker on the other Server

However when I check service status: systemctl status nagios-mod-gearman-worker.service it's failed with the following output:

× nagios-mod-gearman-worker.service - Nagios Mod Gearman Worker
Loaded: loaded (/usr/lib/systemd/system/nagios-mod-gearman-worker.service; enabled; preset: enabled)
Active: failed (Result: exit-code) since Thu 2025-03-20 04:30:38 UTC; 5min ago
Duration: 672ms
Docs: https://www.nagios.org/projects/nagios-mod-gearman/
Process: 533 ExecStart=/usr/bin/nagios-mod-gearman-worker --config=/etc/nagios-mod-gearman/worker.conf --pidfile=/run/nagios-mod-gearman-worker/nagios-mod-gearma>
Main PID: 533 (code=exited, status=203/EXEC)
CPU: 5ms

I am unsure what is going wrong. Also it would be great if someone could guide me on how to edit the Gearman Module and Worker Configuration files.

[cool_oar]

Hello,

I have managed to get this working by reinstalling everything from scratch, I am running Nagios core version 4.5.9 on Ubuntu 24.0. However when the broker is enabled, Nagios stops or crashes every 4mins:

Program End[03-20-2025 13:26:49] Caught SIGTERM, shutting down...
Program End[03-20-2025 13:26:49] Caught SIGSEGV, shutting down...
Informational Message[03-20-2025 13:22:19] Successfully launched command file worker with pid 60359
Informational Message[03-20-2025 13:22:19] Event broker module '/usr/lib64/nagios-mod-gearman/nagios-mod-gearman.o' initialized successfully.
Informational Message[03-20-2025 13:22:19] nagios-mod-gearman: initialized version 1.0.1 (libgearman 1.1.20+ds)
Informational Message[03-20-2025 13:22:19] wproc: Registry request: name=Core Worker 60358;pid=60358
Informational Message[03-20-2025 13:22:19] wproc: Registry request: name=Core Worker 60355;pid=60355
Informational Message[03-20-2025 13:22:19] wproc: Registry request: name=Core Worker 60357;pid=60357
Informational Message[03-20-2025 13:22:19] wproc: Registry request: name=Core Worker 60356;pid=60356
Informational Message[03-20-2025 13:22:19] wproc: Successfully registered manager as @wproc with query handler
Informational Message[03-20-2025 13:22:19] qh: help for the query handler registered
Informational Message[03-20-2025 13:22:19] qh: echo service query handler registered
Informational Message[03-20-2025 13:22:19] qh: core query handler registered
Informational Message[03-20-2025 13:22:19] qh: Socket '/usr/local/nagios/var/rw/nagios.qh' successfully initialized
Informational Message[03-20-2025 13:22:19] LOG VERSION: 2.0
Informational Message[03-20-2025 13:22:19] Local time is Thu Mar 20 13:22:19 UTC 2025
Program Start[03-20-2025 13:22:19] Nagios 4.5.9 starting... (PID=60354)
Program End[03-20-2025 13:12:41] Caught SIGTERM, shutting down...
Program End[03-20-2025 13:12:40] Caught SIGSEGV, shutting down...
Informational Message[03-20-2025 13:08:11] Successfully launched command file worker with pid 60137
Informational Message[03-20-2025 13:08:11] Event broker module '/usr/lib64/nagios-mod-gearman/nagios-mod-gearman.o' initialized successfully.
Informational Message[03-20-2025 13:08:11] nagios-mod-gearman: initialized version 1.0.1 (libgearman 1.1.20+ds)
Informational Message[03-20-2025 13:08:11] wproc: Registry request: name=Core Worker 60134;pid=60134
Informational Message[03-20-2025 13:08:11] wproc: Registry request: name=Core Worker 60135;pid=60135
Informational Message[03-20-2025 13:08:11] wproc: Registry request: name=Core Worker 60136;pid=60136
Informational Message[03-20-2025 13:08:11] wproc: Registry request: name=Core Worker 60133;pid=60133
Informational Message[03-20-2025 13:08:11] wproc: Successfully registered manager as @wproc with query handler
Informational Message[03-20-2025 13:08:11] qh: help for the query handler registered
Informational Message[03-20-2025 13:08:11] qh: echo service query handler registered
Informational Message[03-20-2025 13:08:11] qh: core query handler registered
Informational Message[03-20-2025 13:08:11] qh: Socket '/usr/local/nagios/var/rw/nagios.qh' successfully initialized
Informational Message[03-20-2025 13:08:11] LOG VERSION: 2.0
Informational Message[03-20-2025 13:08:11] Local time is Thu Mar 20 13:08:11 UTC 2025
Program Start[03-20-2025 13:08:11] Nagios 4.5.9 starting... (PID=60131)
Program End[03-20-2025 13:03:43] Caught SIGTERM, shutting down...
Program End[03-20-2025 13:03:43] Caught SIGSEGV, shutting down...
Service Critical[03-20-2025 13:03:02] SERVICE ALERT: localhost;HTTP;CRITICAL;SOFT;1;connect to address 127.0.0.1 and port 80: Connection refused

[DoubleDoubleA]

Try this:

Edit /etc/nagios-mod-gearman/module.conf

Set
debug=1

Save and restart core

look here for errors:
/var/log/nagios-mod-gearman/nagios-mod-gearman-neb.log