"FAIL: Scheduler is not running" after moving to dedicated database server

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1

After moving to dedicated database server with memcached enabled, i am getting the “Scheduler is not running” error. Everything else seems to be working, polling etc. Even if I check the scheduler service status on my server, I can see it running and doing it’s schedules. The suggested fix has no effect.

Validate.php:

Component Version
LibreNMS 25.1.0-119-g91840af2b (2025-02-17T18:35:47+02:00)
DB Schema 2025_01_30_000121_add_ifindex_index_to_ports_table (315)
PHP 8.3.13
Python 3.9.21
Database MySQL 8.0.36
RRDTool 1.7.2
SNMP 5.9.1
===========================================

[OK] Composer Version: 2.8.4
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database connection successful
[OK] Database Schema is current
[OK] SQL Server meets minimum requirements
[OK] lower_case_table_names is enabled
[OK] MySQL engine is optimal
[OK] Database and column collations are correct
[OK] Database schema correct
[OK] MySQL and PHP time match
[OK] Distributed Polling setting is enabled globally
[OK] Connection to memcached is ok
[OK] Connected to rrdcached
[OK] Active pollers found
[OK] Dispatcher Service not detected
[OK] Locks are functional
[OK] Python poller wrapper is polling
[OK] Redis is unavailable
[OK] rrdtool version ok
[OK] Connected to rrdcached
[FAIL] Scheduler is not running
[FIX]:
sudo cp /opt/librenms/dist/librenms-scheduler.service /opt/librenms/dist/librenms-scheduler.timer /etc/systemd/system/
sudo systemctl enable librenms-scheduler.timer
sudo systemctl start librenms-scheduler.timer

daily.sh:

Updating to latest codebase OK
Updating Composer packages OK
Updating SQL-Schema OK
Updating submodules OK
Cleaning up DB OK
Fetching notifications OK
Caching PeeringDB data OK

2

Some update, everything indeed seems to be working except that fail in validate.php in UI or CLI.

systemctl status librenms-scheduler.timer

? librenms-scheduler.timer - LibreNMS Scheduler
Loaded: loaded (/etc/systemd/system/librenms-scheduler.timer; enabled; preset: disabled)
Active: active (waiting) since Fri 2025-02-21 11:55:36 EET; 3h 41min ago
Until: Fri 2025-02-21 11:55:36 EET; 3h 41min ago
Trigger: Fri 2025-02-21 15:38:00 EET; 47s left
Triggers: ? librenms-scheduler.service Started LibreNMS Scheduler.

systemctl status librenms-scheduler.service

? librenms-scheduler.service - LibreNMS Scheduler
Loaded: loaded (/etc/systemd/system/librenms-scheduler.service; static)
Active: inactive (dead) since Fri 2025-02-21 15:38:00 EET; 34s ago
TriggeredBy: ? librenms-scheduler.timer
Process: 275372 ExecStart=/usr/bin/env php artisan schedule:run --no-ansi --no-interaction (code=exited, status=0/SUCCESS)
Main PID: 275372 (code=exited, status=0/SUCCESS)
CPU: 500ms Starting LibreNMS Scheduler…
librenms-scheduler.service: Deactivated successfully.
Finished LibreNMS Scheduler.

3

I installed a poller and the issue followed there. A fresh install without errors including this part:

sudo cp /opt/librenms/dist/librenms-scheduler.service /opt/librenms/dist/librenms-scheduler.timer /etc/systemd/system/
sudo systemctl enable librenms-scheduler.timer
sudo systemctl start librenms-scheduler.timer

There are no errors in any logs and everything is running well and smoothly.

In another topic someone mentioned getting this error after running

./scripts/github-remove -d