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O'Reilly Platform
book
Presto实战
by
Matt Fuller
,
Manfred Moser
,
Martin Traverso
March 2021
Intermediate to advanced
265 pages
6h 50m
Chinese
Posts & Telecom Press
Content preview from
Presto实战
4
|
第
1
章
日志
文件
数据湖
外部对象存储
内部对象存储
流量数据
文档
数据库
物联网
指标
键值存储
NoSQL
数据库
搜索索引
数据仓库
测试报告
这么多问题!
图
1-1
:大数据可能会让人难以招架
此外,这些系统不允许你使用标准工具来查询和检视数据。面向特定系统的查询语言和分析
工具比比皆是。与此同时,你的商业分析师已习惯使用业界标准——
SQL
,无数强大的工具
依赖
SQL
来分析数据、创建仪表盘、制作富文本报告以及完成其他商业智能工作。
数据分散在各个孤岛上,其中有些系统甚至不能提供满足分析所需的查询性能,其他一些
系统则将数据存储在单一庞大的系统上,因而不能像现代的云应用程序一样横向扩展。没
有这样的能力,你就只能缩小潜在的使用场景和用户数量,因此降低了数据的实用价值。
对全世界的组织来说,创建和维护大型专用数据仓库的传统方法成本高昂。通常,对很多
用户和使用模式来说,这种方法也显得缓慢且笨拙。
显而易见的是,一个系统如果可以释放所有这些价值,就将带来巨大的机会。
1.2
Presto
来救场
Presto
能解决上述所有问题。通过支持不同系统上的联邦查询、并行查询和横向集群扩展
等功能,它还为我们提供了更多可能性。
Presto
项目的标志如图
1-2
所示。
图
1-2
:
Presto
的标志
Presto
介绍
|
5
Presto
是一个开源的分布式 ...
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Publisher Resources
ISBN: 9787115560056