librenms@sclibrenms:~$ ./validate.php
====================================
Component | Version
--------- | -------
LibreNMS  | 21.3.0-57-g6616727a9
DB Schema | 2021_03_11_003713_rename_printer_columns (204)
PHP       | 7.4.3
Python    | 3.8.5
MySQL     | 10.3.25-MariaDB-0ubuntu0.20.04.1
RRDTool   | 1.7.2
SNMP      | NET-SNMP 5.8
====================================

[OK]    Composer Version: 2.0.11
[OK]    Dependencies up-to-date.
[OK]    Database connection successful
[FAIL]  Your database is out of date!
        [FIX]:
        ./lnms migrate
librenms@sclibrenms:~$ ./lnms migrate
**************************************
*     Application In Production!     *
**************************************

 Do you really wish to run this command? (yes/no) [no]:
 > yes

Migrating: 2021_02_09_122930_migrate_to_utf8mb4

In Connection.php line 678:

  SQLSTATE[HY000]: General error: 1206 The total number of locks exceeds the lock table size (SQL: ALTER TABLE `syslog`
                      MODIFY `facility`
                      varchar(10)
                      CHARACTER SET utf8mb4
                      COLLATE utf8mb4_unicode_ci
                      NULL ;)


In Exception.php line 18:

  SQLSTATE[HY000]: General error: 1206 The total number of locks exceeds the lock table size


In PDOConnection.php line 52:

  SQLSTATE[HY000]: General error: 1206 The total number of locks exceeds the lock table size


librenms@sclibrenms:~$