Tell us about your setup OS = macOS Sierra Version 10.12.6 , Lando version = lando-v3.0.0-beta.24.dmg

Tell us about your .lando.yml

Paste in the contents of your .lando.yml this is SUPER HELPFUL for us.

Example:

name: dotcom
recipe: drupal7
services:
  appserver:
    build:
      - "curl -sS https://platform.sh/cli/installer | php"
    config:
      conf: php.ini
  database:
    portforward: 8993
  cache:
    type: redis
    persist: true
    portforward: 6379
tooling:
  platform:
    service: appserver
    description: Run Platform CLI commands
    cmd:
      - /var/www/.platformsh/bin/platform
    options:
      passthrough: true
  redis-cli:
    service: cache
config:
  via: nginx
  webroot: _www
  database: mariadb:10.1

Tell us about the command you were running

lando rebuild -y 
# checked to see if everything was running
# open up new terminal 
docker ps -a 
# notice that i had mariadb:10.1 not running
8366fc3e671a        mariadb:10.1               "/lando-entrypoint..."   2 minutes ago       Exited (1) 2 minutes ago                                                                          dotcom_database_1
docker rm 8366fc3e671a
# did another lando  rebuild -y
# same issue, so i checked logs
lando logs

Tell us about the error you got

database_1   | 2017-11-15 16:01:10 140537640757184 [Note] InnoDB: Using SSE crc32 instructions
database_1   | 2017-11-15 16:01:10 140537640757184 [Note] InnoDB: Initializing buffer pool, size = 384.0M
database_1   | 2017-11-15 16:01:10 140537640757184 [Note] InnoDB: Completed initialization of buffer pool
database_1   | 2017-11-15 16:01:10 140537640757184 [Note] InnoDB: Highest supported file format is Barracuda.
database_1   | InnoDB: No valid checkpoint found.
database_1   | InnoDB: A downgrade from MariaDB 10.2.2 or later is not supported.
database_1   | InnoDB: If this error appears when you are creating an InnoDB database,
database_1   | InnoDB: the problem may be that during an earlier attempt you managed
database_1   | InnoDB: to create the InnoDB data files, but log file creation failed.
database_1   | InnoDB: If that is the case, please refer to
database_1   | InnoDB: http://dev.mysql.com/doc/refman/5.6/en/error-creating-innodb.html
database_1   | 2017-11-15 16:01:10 140537640757184 [ERROR] Plugin 'InnoDB' init function returned error.
database_1   | 2017-11-15 16:01:10 140537640757184 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
database_1   | 2017-11-15 16:01:10 140537640757184 [Note] Plugin 'FEEDBACK' is disabled.
database_1   | 2017-11-15 16:01:10 140537640757184 [ERROR] Could not open mysql.plugin table. Some plugins may be not loaded
database_1   | 2017-11-15 16:01:10 140537640757184 [ERROR] Unknown/unsupported storage engine: innodb
database_1   | 2017-11-15 16:01:10 140537640757184 [ERROR] Aborting
database_1   |

Tell us generally about your bug

Whenever I tried to run lando mysql i would get this error

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2 "No such file or directory")

which told me that my database service isnt starting

Tell us more

Could better documentation have prevented this issue? if so what should we change? In slack Pirog explained that it was because i was jumping versions from high -> low which could cause this problem and that i would need to run a lando destroy and then lando rebuild to resolve the situation.

Feature/Enhancement Request

Please explain your request and its importance in the form of a user story.

As a lando user who works with Drupal sites, I want more elaboration on the documentation for mariadb explaining that even though Lando supports older versions if you edit your lando.yml file from a higher version to a lower version there could be issues with your build Please provide some detail on how lando can help solve this problem

lando / docs

Expounding upon supporting versions in mariaDB doc #121

Feature/Enhancement Request