Hi Mike,
root@linux:/opt/observium# grep -A 100 'Schema update 312' ./logs/update-errors.log
[2016/11/11 13:12:07 -0200] discovery.php(19340): ====== Schema update 312 -> 313 ==============
[2016/11/11 13:12:07 -0200] discovery.php(19340): Query: ALTER TABLE `oids_assoc` DROP INDEX `oids_cache`;
[2016/11/11 13:12:07 -0200] discovery.php(19340): Error: (1091) Can't DROP 'oids_cache'; check that column/key exists
[2016/11/11 13:12:07 -0200] discovery.php(19340): Query: ALTER IGNORE TABLE `oids_assoc` ADD UNIQUE `oids_cache` (`oid_id`, `device_id`);
[2016/11/11 13:12:07 -0200] discovery.php(19340): Error: (1064) You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IGNORE TABLE `oids_assoc` ADD UNIQUE `oids_cache` (`oid_id`, `device_id`)' at line 1
Thank you,