如何将 liquibase 连接到 AWS RDS Aurora MySQL 数据库

Question

我正在尝试设置 liquibase 以基于 AWS RDS Aurora MySql 为一个项目同步我的开发和生产数据库。不幸的是，我无法将 liquibase 连接到我的 AWS Aurora MySQL 数据库。

我做了什么？

1. 已安装 liquibase
2. 关注文章https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/Aurora.Connecting.html，该文章解释了如何通过 JDBC 连接到 AWS RDS Aurora MySQL 数据库集群。
   • 我下载了 Maria DB JDBC 连接器
   • 我使用附录 1 中所述的数据配置了 liquibase.properties 文件
   • 我运行了命令 `liquibase --driver=org.mariadb.jdbc.Driver --classpath=mariadb-java-client-2.7.1.jar generateChangeLog``
3. liquibase 按预期启动并尝试连接到数据库 prod 集群，但随后挂起一段时间，然后终止并出现异常“与主服务器的通信链接失败。找不到主服务器的活动连接”。 - 参见附录 2 中的堆栈跟踪

我的问题：

我必须如何配置 liquibase 才能使其与 AWS RDS Aurora MySQL 数据库集群一起运行？

感谢和最好的问候 智能家居制造商

附录 1：liquibase.properties：

# Enter the path for your changelog file.
changeLogFile=<CHANGE_LOG_FILENAME>

#### Enter the Target database 'url' information  ####
url=jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME>

# Enter the username for your Target database.
username: <PROD_DATABASE_USER>

# Enter the password for your Target database.
password: <PROD_DATABASE_PASSWORD>

#### Enter the Source Database 'referenceUrl' information ####
## The source database is the baseline or reference against which your target database is compared for diff/diffchangelog commands.

# Enter URL for the source database
referenceUrl: jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_DEV_CLUSTER>:<PORT_FOR_AWS_AURORA_DEV_CLUSTER>/<DEV_DATABASE_NAME>

# Enter the username for your source database
referenceUsername: <DEV_DATABASE_USER>

# Enter the password for your source database
referencePassword: <DEV_DATABASE_PASSWORD>

logLevel: DEBUG

附录 2：堆栈跟踪：

[2020-12-29 14:43:05] FEIN [liquibase.servicelocator] Loaded liquibase.license.LicenseService instance liquibase.pro.license.keymgr.DaticalTrueLicenseService
[2020-12-29 14:43:05] INFORMATION [liquibase.integration] No Liquibase Pro license key supplied. Please set liquibaseProLicenseKey on command line or in liquibase.properties to use Liquibase Pro features.
Liquibase Community 4.2.2 by Datical
####################################################
##   _     _             _ _                      ##
##  | |   (_)           (_) |                     ##
##  | |    _  __ _ _   _ _| |__   __ _ ___  ___   ##
##  | |   | |/ _` | | | | | '_ \ / _` / __|/ _ \  ##
##  | |___| | (_| | |_| | | |_) | (_| \__ \  __/  ##
##  \_____/_|\__, |\__,_|_|_.__/ \__,_|___/\___|  ##
##              | |                               ##
##              |_|                               ##
##                                                ## 
##  Get documentation at docs.liquibase.com       ##
##  Get certified courses at learn.liquibase.com  ## 
##  Free schema change activity reports at        ##
##      https://hub.liquibase.com                 ##
##                                                ##
####################################################
Starte Liquibase am 14:43:05 (Version 4.2.2 #36, kompiliert am 2020-12-09 20:07+0000)
[2020-12-29 14:43:05] FEIN [liquibase.integration] 'file:<PATH_TO_JAR_FILE>mariadb-java-client-2.7.1.jar' will be added to Java Classpath.
[2020-12-29 14:43:05] FEIN [liquibase.integration] Liquibase Hub URL:      https://hub.liquibase.com
[2020-12-29 14:43:05] FEIN [liquibase.integration] Liquibase Hub Mode:     all
[2020-12-29 14:43:05] FEIN [liquibase.resource] Adding path <PATH_WHERE_LIQUIBASE_IS_RUNNING>. to resourceAccessor liquibase.resource.FileSystemResourceAccessor
[2020-12-29 14:43:05] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.CockroachDatabase
[2020-12-29 14:43:05] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.DB2Database
[2020-12-29 14:43:05] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.Db2zDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.DerbyDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.Firebird3Database
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.FirebirdDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.H2Database
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.HsqlDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.InformixDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.Ingres9Database
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.MSSQLDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.MariaDBDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.MockDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.MySQLDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.OracleDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.PostgresDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.SQLiteDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.SybaseASADatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.SybaseDatabase
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.Database instance liquibase.database.core.UnsupportedDatabase
[2020-12-29 14:43:08] FEIN [liquibase.database] Properties:
[2020-12-29 14:43:08] FEIN [liquibase.database] Key:'password' Value:'**********'
[2020-12-29 14:43:08] FEIN [liquibase.database] Key:'user' Value:'***********'
[2020-12-29 14:43:08] FEIN [liquibase.database] Connecting to the URL:'jdbc:mariadb:aurora//jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME>' using driver:'org.mariadb.jdbc.Driver'
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.DatabaseConnection instance liquibase.database.jvm.JdbcConnection
[2020-12-29 14:43:08] FEIN [liquibase.servicelocator] Loaded liquibase.database.DatabaseConnection instance com.datical.liquibase.ext.database.jvm.ProJdbcConnection
Unexpected exception when executing liquibase: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: Connection could not be created to jdbc:mariadb:aurora//jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME> with driver org.mariadb.jdbc.Driver.  Communications link failure with primary. No active connection found for master. 
Bitte verwenden Sie die '--logLevel'-Option, um mehr Informationen zu erhalten.
[2020-12-29 15:02:59] FATAL [liquibase.integration] Unexpected Exception when running liquibase: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: Connection could not be created to jdbc:mariadb:aurora//jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME> with driver org.mariadb.jdbc.Driver.  Communications link failure with primary. No active connection found for master. 
liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: Connection could not be created to jdbc:mariadb:aurora//jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME> with driver org.mariadb.jdbc.Driver.  Communications link failure with primary. No active connection found for master. 
    at liquibase.integration.commandline.CommandLineUtils.createDatabaseObject(CommandLineUtils.java:131)
    at liquibase.integration.commandline.Main.doMigration(Main.java:1409)
    at liquibase.integration.commandline.Main$1.lambda$run$0(Main.java:361)
    at liquibase.Scope.lambda$child$0(Scope.java:160)
    at liquibase.Scope.child(Scope.java:169)
    at liquibase.Scope.child(Scope.java:159)
    at liquibase.Scope.child(Scope.java:138)
    at liquibase.Scope.child(Scope.java:222)
    at liquibase.Scope.child(Scope.java:226)
    at liquibase.integration.commandline.Main$1.run(Main.java:360)
    at liquibase.integration.commandline.Main$1.run(Main.java:193)
    at liquibase.Scope.child(Scope.java:169)
    at liquibase.Scope.child(Scope.java:145)
    at liquibase.integration.commandline.Main.run(Main.java:193)
    at liquibase.integration.commandline.Main.main(Main.java:156)
Caused by: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: Connection could not be created to jdbc:mariadb:aurora//jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME> with driver org.mariadb.jdbc.Driver.  Communications link failure with primary. No active connection found for master. 
    at liquibase.database.DatabaseFactory.openConnection(DatabaseFactory.java:216)
    at liquibase.database.DatabaseFactory.openConnection(DatabaseFactory.java:175)
    at liquibase.database.DatabaseFactory.openDatabase(DatabaseFactory.java:140)
    at liquibase.integration.commandline.CommandLineUtils.createDatabaseObject(CommandLineUtils.java:96)
    ... 14 more
Caused by: liquibase.exception.DatabaseException: liquibase.exception.DatabaseException: Connection could not be created to jdbc:mariadb:aurora//jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME> with driver org.mariadb.jdbc.Driver.  Communications link failure with primary. No active connection found for master. 
    at liquibase.database.ConnectionServiceFactory.create(ConnectionServiceFactory.java:36)
    at liquibase.database.DatabaseFactory.openConnection(DatabaseFactory.java:213)
    ... 17 more
Caused by: liquibase.exception.DatabaseException: Connection could not be created to jdbc:mariadb:aurora//jdbc:mariadb:aurora//<ENDPOINT_URL_FOR_AWS_AURORA_PROD_CLUSTER>:<PORT_FOR_AWS_AURORA_PROD_CLUSTER>/<PROD_DATABASE_NAME> with driver org.mariadb.jdbc.Driver.  Communications link failure with primary. No active connection found for master. 
    at liquibase.database.jvm.JdbcConnection.open(JdbcConnection.java:43)
    at com.datical.liquibase.ext.database.jvm.ProJdbcConnection.open(Unknown Source)
    at liquibase.database.ConnectionServiceFactory.create(ConnectionServiceFactory.java:33)
    ... 18 more

Answer 1

我自己还在研究，这是由 AWS 的一位高级技术客户经理提供的good article，用于熟悉如何将事物连接在一起。

总而言之，您必须在 AWS 生态系统上工作，在 EC2 上部署 Liquibase 和 CI/CD 软件（如 Jenkins），并将您的 SQL 存储库提交到 AWS codecommit。请注意，这通常适用于 Aurora，但在无服务器的情况下，您可能会遇到连接问题，因此我建议您通过 HTTP 通过 Data API 连接它，但这是我仍在调查的持续过程。