8.4 中文镜像

MySQL 8.4 参考手册 · 中文镜像

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19.5.1 复制特性和问题19.5.1 Replication Features and Issues

以下各节提供了有关 MySQL 复制中支持和不支持内容的信息,以及在复制某些语句时可能出现的特定问题和情况。The following sections provide information about what is supported and what is not in MySQL replication, and about specific issues and situations that may occur when replicating certain statements.

基于语句的复制依赖于源和副本在 SQL 级别的兼容性。换句话说,成功的基于语句的复制要求使用的任何 SQL 功能都必须被源服务器和副本服务器支持。如果您在源服务器上使用某个仅在当前版本的 MySQL 中可用的功能,则无法复制到使用旧版本 MySQL 的副本中。这种不兼容性也可能在同一发布系列内部以及不同版本之间发生。Statement-based replication depends on compatibility at the SQL level between the source and replica. In other words, successful statement-based replication requires that any SQL features used be supported by both the source and the replica servers. If you use a feature on the source server that is available only in the current version of MySQL, you cannot replicate to a replica that uses an earlier version of MySQL. Such incompatibilities can also occur within a release series as well as between versions.

如果您计划在 MySQL 8.4 与早期 MySQL 发行系列之间使用基于语句的复制,建议查阅对应早期发行系列的 MySQL 参考手册 版本,以获取有关该系列复制特性的信息。If you are planning to use statement-based replication between MySQL 8.4 and a previous MySQL release series, it is a good idea to consult the edition of the MySQL Reference Manual corresponding to the earlier release series for information regarding the replication characteristics of that series.

在 MySQL 的基于语句的复制中,复制存储例程或触发器时可能会出现问题。您可以通过使用 MySQL 的基于行的复制来避免这些问题。有关问题的详细列表,请参见 第 27.7 节,“存储程序二进制日志记录”。有关基于行的日志记录和基于行的复制的更多信息,请参见 第 7.4.4.1 节,“二进制日志记录格式”,以及 第 19.2.1 节,“复制格式”。With MySQL's statement-based replication, there may be issues with replicating stored routines or triggers. You can avoid these issues by using MySQL's row-based replication instead. For a detailed list of issues, see Section 27.7, “Stored Program Binary Logging”. For more information about row-based logging and row-based replication, see Section 7.4.4.1, “Binary Logging Formats”, and Section 19.2.1, “Replication Formats”.

有关特定于复制和InnoDB的其他信息,请参见第 17.19 节,“InnoDB 和 MySQL 复制”。有关使用 NDB 集群进行复制的信息,请参见第 25.7 节,“NDB 集群复制”。For additional information specific to replication and InnoDB, see Section 17.19, “InnoDB and MySQL Replication”. For information relating to replication with NDB Cluster, see Section 25.7, “NDB Cluster Replication”.