This seems to be the problem, it's already fixed (it was fixed before you ran this).
[2026/10/09 20:25:54 +0000] discovery.php(2808760): ====== Initial schema install from db_schema_mysql.sql ============== [2026/10/09 20:25:54 +0000] discovery.php(2808760): Command: /usr/bin/mysql -u'observium' -p'***' -h'localhost' -D 'observium' < '/opt/observium/update/db_schema_mysql.sql' [2026/10/09 20:25:54 +0000] discovery.php(2808760): Exit code: 1 [2026/10/09 20:25:54 +0000] discovery.php(2808760): Runtime: 0.04216194152832 [2026/10/09 20:25:54 +0000] discovery.php(2808760): Error: -------------- CREATE TABLE `cache` ( `cache_key` varchar(255) NOT NULL, `cache_value` longtext, `cache_expires` timestamp NULL DEFAULT NULL, `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci --------------
ERROR 1273 (HY000) at line 529: Unknown collation: 'utf8mb4_0900_ai_ci'
This is mariadb vs mysql nonsense.
Is there any reason your install tried to insert a new database on the 9th? oO
It'll probably install correctly if you remove the database and run the current version of the code, but if you previously had a database, it seems to be gone.
adam.
Repsher, Brian via observium wrote on 2026-10-14 8:12 PM:
I noticed some strange behavior with alerts after doing a recent update. I have the Professional subscription.
I looked in the update-errors.log and saw many errors. Have not had any issues in many years so was surprised I mucked up the upgrade.
Looking for some direction on solving these issues. I'm comfortable using mysql and can make changes.
I attached the log. Nothing concerning in the other
Brian Repsher Sr. Staff QA Engineer
2400 Ogden Ave Ste 180 Lisle IL 60503 Office: 847-561-8452
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