java -jar lib/liquibase.jar --logLevel debug
  --url jdbc:mysql://secret.us-west-2.rds.amazonaws.com:3306/mydb
  --classpath lib/mysql-connector-java-5.1.40-bin.jar
  --driver com.mysql.jdbc.Driver --username secret --password secret
  --changeLogFile /full/path/to/db/changelog.xml updateSQL

08:57:19 DEBUG: liquibase: Connected to secret@secret@jdbc:mysql://secret.us-west-2.rds.amazonaws.com:3306/secret
08:57:19 DEBUG: liquibase: Setting auto commit to false from true
08:57:20 DEBUG: liquibase: Executing QUERY database command: select count(*) from secret.DATABASECHANGELOGLOCK
08:57:20 DEBUG: liquibase: Executing QUERY database command: select count(*) from secret.DATABASECHANGELOGLOCK
08:57:20 INFO: liquibase: Successfully acquired change log lock
08:57:21 DEBUG: liquibase: Resolving XML entity name='null', publicId='null', baseURI='null', systemId='http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.1.xsd'
08:57:21 DEBUG: liquibase: Opening jar:file:lib/liquibase.jar!/liquibase/parser/core/xml/dbchangelog-3.1.xsd as liquibase/parser/core/xml/dbchangelog-3.1.xsd
08:57:21 DEBUG: liquibase: Computed checksum for 1478674641885 as fddb2cfa4a6e9293d3b6cd5135dd7525

DEBUG: liquibase: Executing QUERY database command: SELECT MD5SUM FROM secret.DATABASECHANGELOG WHERE MD5SUM IS NOT NULL LIMIT 1