Use short username and dbname.

mysql has limit to 16 characters.

software/erp5/instance-mariadb.cfg

@@ -35,8 +35,8 @@ ip = $${slap-network-information:local-ipv4}
 database = erp5
 test-user = erp5_test
 test-database = erp5_test
-mysql-test-database-base = erp5_test_parallel
-mysql-test-user-base = erp5_test_parallel
+mysql-test-database-base = testdb
+mysql-test-user-base = testuser
 
 # Paths
 wrapper = $${basedirectory:services}/mariadb

software/erp5/software.cfg

@@ -18,7 +18,7 @@ unzip = true
 [template-mariadb]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-mariadb.cfg
-md5sum = 180f9dc94ae5a2d9e03a13f191905938
+md5sum = 726888330d63150bedf37a8cfcbe90ea
 output = ${buildout:directory}/template-mariadb.cfg
 mode = 0644