Maven listlocks
listLocks
returns the hostname, IP address, and the timestamp the Liquibase lock record was added to the DATABASECHANGELOGLOCK table.
Uses
listLocks
is typically used when an error occurs during a database deployment. The error might indicate that there is a lock record in the DATABASECHANGELOG table by another user that is preventing Liquibase from applying changes to the specified database.
listLocks
will read the DATABASECHANGELOGLOCK table and return a list that includes the hostname, IP address, and the timestamp the lock record was granted to the DATABASECHANGELOG table and determines the connections to the DATABASECHANGELOG table based on the database URL.
Maven configuration
Liquibase Maven can be configured in multiple ways. One way is to define your Liquibase configuration properties in your pom.xml
file. To configure your pom.xml
file, refer to Configuring Liquibase Attributes in your Maven POM File.
Running the listLocks
Maven goal
Running the listLocks
goal requires a Maven project to be implemented.
To run the goal, type the following in your command prompt:
mvn liquibase:listLocks

When successful, the listLocks
Maven goal produces the following output when there is no lock on the table:
[INFO] Executing on Database: jdbc:oracle:thin:@support.datical.net:1521:ORCL
[INFO] SELECT MD5SUM FROM DATABASECHANGELOG WHERE MD5SUM IS NOT NULL AND ROWNUM=1
[INFO] SELECT COUNT(*) FROM DATABASECHANGELOGLOCK
[INFO] SELECT COUNT(*) FROM DATABASECHANGELOGLOCK
[INFO] SELECT ID,LOCKED,LOCKGRANTED,LOCKEDBY FROM DATABASECHANGELOGLOCK WHERE ID=1 FOR UPDATE
Database change log locks for MVN_UAT@jdbc:oracle:thin:@support.datical.net:1521:ORCL
- No locks
When there is a lock on the table, the listLocks
Maven goal produces the following output:
[INFO] Executing on Database: jdbc:oracle:thin:@localhost:1521/ORCL
Database change log locks for MVN@jdbc:oracle:thin:@localhost:1521/ORCL
- 2605:6000:101c:686:486:f4ae:82fe:3c99%en0 (2605:6000:101c:686:486:f4ae:82fe:3c99%en0) at Dec 30, 2020 3:21:05 PM
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.722 s
[INFO] Finished at: 2020-12-30T09:22:04-06:00
[INFO] ------------------------------------------------------------------------
listLocks
optional Maven configuration attributes
Attribute | Definition |
---|---|
liquibase.changelogCatalogName | Specifies the catalog Liquibase will use to create your changelog tables. |
liquibase.changelogSchemaName | Specifies the schema Liquibase will use to create your changelog tables. |
liquibase.clearCheckSums [boolean] | Forces checksums to be cleared from the DATABASECHANGELOG table. Default value is: false. |
liquibase.databaseChangeLogLockTableName | Specifies the table name to use for the DATABASECHANGELOGLOCK table. |
liquibase.databaseChangeLogTableName | Specifies the table name to use for the DATABASECHANGELOG table. |
liquibase.databaseClass | Specifies the database object class. |
liquibase.defaultCatalogName | Specifies the default catalog name to use for the database connection. |
liquibase.defaultSchemaName | Specifies the default schema name to use for the database connection. |
liquibase.driver | Specifies the driver class name to use for the database connection. |
driverPropertiesFile | Specifies the location of a JDBC connection properties file which contains properties the driver will use. |
liquibase.emptyPassword [boolean] | Deprecated. Use an empty or null value for the password instead. Default value is: false. |
expressionVariables | Specifies a map-based collection of changelog properties to apply. |
expressionVars | Specifies a property-based collection of changelog properties to apply. |
liquibase.includeArtifact [boolean] | Includes a Maven project artifact in the class loader which obtains the liquibase.properties file and changelog files. Default value is: true. |
liquibase.includeTestOutputDirectory [boolean] | Includes the Maven test output directory in the class loader which obtains the liquibase.properties file and
changelog files. Default value is: true.
|
liquibase.liquibaseProLicenseKey | Specifies your Liquibase Pro license key. |
liquibase.outputDefaultCatalog [boolean] | Specifies whether to ignore the catalog or database name. Default value is: false. |
liquibase.outputDefaultSchema [boolean] | Specifies whether to ignore the schema name. Default value is: false. |
liquibase.outputFileEncoding | Indicates that you want to set the character encoding of the output file during the updateSQL phase. |
liquibase.password | Specifies the database password for database connection. |
liquibase.promptOnNonLocalDatabase [boolean] | Controls whether users are prompted before executing changesets to a non-local database. Default value is: true. |
liquibase.propertyFile | Specifies the liquibase.properties file you want to use to configure Liquibase. |
liquibase.propertyFileWillOverride [boolean] | Indicates that you want the liquibase.properties file to override any settings provided in the Maven plugin configuration. By default, if a property is explicitly specified it is not overridden if it also appears in the properties file. Default value is: false. |
liquibase.propertyProviderClass | Specifies the property provider which must be a java.util.Properties implementation. |
liquibase.server | Specifies the server ID in the Maven settings.xml to use when authenticating. |
liquibase.skip [boolean] | Specifies whether to skip running Liquibase. The use of this attribute is not recommended but can be used when needed. Default value is: false. |
systemProperties | Specifies a list of system properties you want to pass to the database. |
liquibase.url | Specifies the database URL you want to use to execute Liquibase. |
liquibase.username | Specifies the database username for database connection. |
liquibase.verbose [boolean] | Controls the amount of output detail when you call the plugin. Default value is: false. |