Over the past several years, the Hadoop ecosystem has made great strides in its real-time access capabilities, narrowing the gap compared to traditional database technologies. Despite these advances, some important gaps remain that prevent many appl
在transactional replication, 经常会遇到数据同步延迟的情况。有时候这些延迟是由于在publication中执行了一个更新，例如update ta set col=? Where ?，这个更新包含巨大的数据量。在subscr iption端，这个更新会分解成多条命令（默认情况下每个数据行一个命令），应用到subscr iption上。 不得已的情况下，我们需要跳过这个大的事务，让replication继续运行下去。
现在介绍一下transactional replicat
