背景信息本文主要提供数据库上云后OLTP+OLAP一体化架构的最佳实践，即HTAP。主要面对的业务应用范围如下：混合型HTAP数据库需求，如Oracle数据库改造上云，云上数据库方案选型；OLTP系统查询慢，存在分析型场景和瓶颈的客户；读写分离需求。PolarDB-X HTAP架构更多信息，请参见混...

文章 2017-11-08 来自：开发者社区

hive和hbase本质区别——hbase本质是OLTP的nosql DB，而hive是OLAP 底层是hdfs，需从已有数据库同步数据到hdfs;hive可以用hbase中的数据，通过hive表映射到hbase表

对于hbase当前noSql数据库的一种，最常见的应用场景就是采集的网页数据的存储，由于是key-value型数据库，可以再扩展到各种key-value应用场景，如日志信息的存储，对于内容信息不需要完全结构化出来的类CMS应用等。注意hbase针对的仍然是OLTP应用为主。对于hive主要针对的是OLAP应用，注意其底层不是hbase，而是hdfs分布式文件系统，重点是基于一个统一的查询分析层....

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