发布于 2017-11-22 02:24:33 | 155 次阅读 | 评论: 0 | 来源: 网友投递
MariaDB数据库
MariaDB基于事务的Maria存储引擎，替换了MySQL的MyISAM存储引擎，它使用了Percona的 XtraDB，InnoDB的变体，分支的开发者希望提供访问即将到来的MySQL 5.4 InnoDB性能。这个版本还包括了 PrimeBase XT (PBXT) 和 FederatedX存储引擎。
MariaDB ColumnStore是在MariaDB 10.1基础上移植了 InfiniDB 4.6.2 构建的大规模并行，高性能，压缩，分布式开源列式存储引擎，类似收费产品Infobright。它设计用于大数据离线分析，用来抗衡Hadoop。你可以使用标准SQL语句进行查询，支持目前流行的sqlyog/navicat客户端工具连接，对业务方使用没有任何的不便，并且你不需要创建任何索引，不需要修改业务方的复杂SQL（自身就支持复杂的关联查询、聚合、存储过程和用户定义的函数），你唯一要做的就是把数据导入到ColumnStore里，就没你事了。这对一家没有Hadoop工程师的公司来说，MariaDB ColumnStore会是一个更好的替代产品。
Beta release of the Streaming Data Adapters: Out of box adapters for data integration between various data sources for specific use cases
MaxScale CDC Data Adapter is integration of the MaxScale CDC streams into MariaDB ColumnStore
Kafka Data Adapter is integration of the Kafka streams into MariaDB ColumnStore.
MCOL-963 - self join cte queries from tpcds alternately fail with parsing error and succeed but with incorrect results
MCOL-976 - System in DBRM_READ_ONLY mode after Non-parent PM recovery under DataRedundancy
MCOL-989 - The addmodule command reported an invalid password error if cluster on the new module is not running
MCOL-997 - postConfigure on a DataRed setup should exiting when system install prompt is answered 'n'
MCOL-998 - MySQL replication is not replicating after installation
MCOL-1008 - LDI and INSERT...SELECT causes mysqld to crash with long VARCHAR entries
MCOL-1009 - MCS Replication setup failure - mysqld failed to restart
MCOL-1010 - Debian 9 package: postConfigure failed to create /etc/rc.d/rc.local file
MCOL-1014 - Replication setup failed when using ssh key and schema sync enabled
MCOL-1016 - information_schema.columnstore_extents data_size calculation incorrect
MCOL-1020 - On ovh data center servers, postConfigure crashed on upgrade
MCOL-1021 - Dictionary deduplication cache is not working correctly
MCOL-1024 - postConfigure reported system catalog creation error but database continue to work
此外还包含了很多其他 bug 修复。