MySQL蜘蛛引擎迁移指南:从MariaDB插件到MySQL的完整步骤

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知识点: 1. MariaDB与MySQL关系和区别:MariaDB是MySQL的一个分支,由MySQL的原作者创建,旨在保持MySQL开源的同时,提高其性能、扩展性、安全性和功能。它在很多方面与MySQL保持高度兼容性,但在一些新的特性和优化上,MariaDB会先行一步。由于这个特性,使得MariaDB成为了MySQL的强大替代品,有时用户会基于特定原因在两者之间进行迁移。 2. 数据库插件概述:在MySQL中,插件是一种扩展方式,用于增强数据库服务器的功能。插件可以实现各种功能,比如存储引擎、权限验证、复制、协议处理等。编写插件通常需要深入了解MySQL的内部架构和API。 3. MySQL存储引擎:MySQL支持多种存储引擎,它们定义了表在磁盘上的存储方式,表的索引方式,表的锁定级别等。常见的存储引擎包括InnoDB、MyISAM、Memory等。每个存储引擎都有其特定的用途和优势。插件形式的存储引擎如本例中的“spider引擎”,可以增加MySQL在数据分片、分布式查询处理等方面的能力。 4. 源码编译安装过程:在本例中,通过cmake工具来配置编译环境。首先,需要设置CMAKE_INSTALL_PREFIX参数,这是指定安装路径的参数。需要注意的是,编译MySQL插件时必须使用与MySQL服务端相同的源代码版本和构建参数,以避免版本不兼容导致的问题。 5. MySQL服务端和插件的版本兼容性:版本兼容性是指MySQL服务端和插件需要保持相同的版本,或者遵循特定的兼容性规则。如果MySQL服务端是调试版,构建时没有使用cmake参数-DBUILD_CONFIG,则在编译插件时同样不得添加该参数。 6. 插件的安装和初始化:在本例中,插件的安装通过执行SQL脚本(install_spider.sql)来完成。这一步骤通常是向MySQL服务端提交SQL命令,以在数据库系统中注册并激活该插件。 7. C++在MySQL插件开发中的作用:本例中的标签为“C++”,说明该插件是使用C++语言开发的。C++因其性能和灵活性,在编写需要高性能处理的数据库插件时是一个常见的选择。 8. 文件压缩包的文件命名和管理:该压缩包文件被命名为“mysql-plugin-spider-engine-master”。通常这种命名方式表明了该版本可能是该插件的“master”(主)版本,代表最新稳定版本或主分支版本。文件压缩包的管理需要遵循版本控制系统中的命名规则,以便于跟踪和维护。 以上知识点详细说明了从标题和描述中提取的关于mysql-plugin-spider-engine的知识内容,即它是一个从mariadb迁移过来的蜘蛛引擎,以及如何编译、安装和初始化该插件的过程,同时也涉及了插件版本兼容性、存储引擎、以及C++在MySQL插件开发中的作用。
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[root@QAQ ~]# sudo tail -n 50 /var/log/mysql/error.log 2023-07-14T02:43:01.816556Z 0 [Note] Shutting down plugin 'partition' 2023-07-14T02:43:01.816558Z 0 [Note] Shutting down plugin 'BLACKHOLE' 2023-07-14T02:43:01.816566Z 0 [Note] Shutting down plugin 'ARCHIVE' 2023-07-14T02:43:01.816568Z 0 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA' 2023-07-14T02:43:01.816594Z 0 [Note] Shutting down plugin 'MRG_MYISAM' 2023-07-14T02:43:01.816597Z 0 [Note] Shutting down plugin 'MyISAM' 2023-07-14T02:43:01.816605Z 0 [Note] Shutting down plugin 'INNODB_SYS_VIRTUAL' 2023-07-14T02:43:01.816608Z 0 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES' 2023-07-14T02:43:01.816610Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES' 2023-07-14T02:43:01.816612Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS' 2023-07-14T02:43:01.816614Z 0 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN' 2023-07-14T02:43:01.816616Z 0 [Note] Shutting down plugin 'INNODB_SYS_FIELDS' 2023-07-14T02:43:01.816618Z 0 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS' 2023-07-14T02:43:01.816620Z 0 [Note] Shutting down plugin 'INNODB_SYS_INDEXES' 2023-07-14T02:43:01.816622Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS' 2023-07-14T02:43:01.816624Z 0 [Note] Shutting down plugin 'INNODB_SYS_TABLES' 2023-07-14T02:43:01.816626Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE' 2023-07-14T02:43:01.816628Z 0 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE' 2023-07-14T02:43:01.816630Z 0 [Note] Shutting down plugin 'INNODB_FT_CONFIG' 2023-07-14T02:43:01.816632Z 0 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED' 2023-07-14T02:43:01.816634Z 0 [Note] Shutting down plugin 'INNODB_FT_DELETED' 2023-07-14T02:43:01.816636Z 0 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD' 2023-07-14T02:43:01.816638Z 0 [Note] Shutting down plugin 'INNODB_METRICS' 2023-07-14T02:43:01.816640Z 0 [Note] Shutting down plugin 'INNODB_TEMP_TABLE_INFO' 2023-07-14T02:43:01.816642Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS' 2023-07-14T02:43:01.816644Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU' 2023-07-14T02:43:01.816645Z 0 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE' 2023-07-14T02:43:01.816647Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET' 2023-07-14T02:43:01.816649Z 0 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX' 2023-07-14T02:43:01.816651Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET' 2023-07-14T02:43:01.816653Z 0 [Note] Shutting down plugin 'INNODB_CMPMEM' 2023-07-14T02:43:01.816655Z 0 [Note] Shutting down plugin 'INNODB_CMP_RESET' 2023-07-14T02:43:01.816657Z 0 [Note] Shutting down plugin 'INNODB_CMP' 2023-07-14T02:43:01.816659Z 0 [Note] Shutting down plugin 'INNODB_LOCK_WAITS' 2023-07-14T02:43:01.816661Z 0 [Note] Shutting down plugin 'INNODB_LOCKS' 2023-07-14T02:43:01.816664Z 0 [Note] Shutting down plugin 'INNODB_TRX' 2023-07-14T02:43:01.816666Z 0 [Note] Shutting down plugin 'InnoDB' 2023-07-14T02:43:01.816703Z 0 [Note] InnoDB: FTS optimize thread exiting. 2023-07-14T02:43:01.816748Z 0 [Note] InnoDB: Starting shutdown... 2023-07-14T02:43:01.916861Z 0 [Note] InnoDB: Dumping buffer pool(s) to /www/server/data/ib_buffer_pool 2023-07-14T02:43:01.917024Z 0 [Note] InnoDB: Buffer pool(s) dump completed at 230714 10:43:01 2023-07-14T02:43:03.438469Z 0 [Note] InnoDB: Shutdown completed; log sequence number 2767449 2023-07-14T02:43:03.439797Z 0 [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1" 2023-07-14T02:43:03.439814Z 0 [Note] Shutting down plugin 'MEMORY' 2023-07-14T02:43:03.439819Z 0 [Note] Shutting down plugin 'CSV' 2023-07-14T02:43:03.439823Z 0 [Note] Shutting down plugin 'sha256_password' 2023-07-14T02:43:03.439825Z 0 [Note] Shutting down plugin 'mysql_native_password' 2023-07-14T02:43:03.439939Z 0 [Note] Shutting down plugin 'binlog' 2023-07-14T02:43:03.440752Z 0 [Note] /www/server/mysql/bin/mysqld: Shutdown complete

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