尚硅谷大数据技术之Hadoop(入门)p生态圈。 1.2 Hadoop 发展历史(了解) Hadoop发展历史 1)Hadoop创始人Doug Cutting,为了实现与Google类似的全文搜索功能,他在Lucene框架基础上进行优 化升级,查询引擎和索引引擎。 Hadoop创始人Doug Cutting 2)2001年年底Lucene成为Apache基金会的一个子项目。 3)对于海量数据的场景,Lucene框 –前端 –python 人工智能资料下载,可百度访问:尚硅谷官网 Hadoop发展历史 6)2003-2004年,Google公开了部分GFS和MapReduce思想的细节,以此为基础Doug Cutting等人用 了2年业余时间实现了DFS和MapReduce机制,使Nutch性能飙升。 7)2005 年Hadoop 作为 Lucene的子项目 Nutch的一部分正式引入Apache基金会。 月份,Map-Reduce和Nutch Distributed File System (NDFS)分别被纳入到 Hadoop 项目 中,Hadoop就此正式诞生,标志着大数据时代来临。 9)名字来源于Doug Cutting儿子的玩具大象 Hadoop的logo 1.3 Hadoop 三大发行版本(了解) Hadoop 三大发行版本:Apache、Cloudera、Hortonworks。 Apache0 码力 | 35 页 | 1.70 MB | 1 年前3
Blender v4.1 Manualrefer to axes in 3D space instead. UVs Explained The best analogy to understand UV mapping is cutting up a cardboard box. If you were to take a pair of scissors and cut along its edges, you would be will look like when saved. This is the main working mode for adding strips and moving them around, cutting, grouping (making meta) and splicing them through special effects. Luma Waveform For the selected In the case of the cube, deleting the top face will result in cutting edges. Select Non-Manifold (Wire, Boundaries) will highlight the cutting edges of mesh objects. In general, for flat shapes, you will0 码力 | 6263 页 | 303.71 MB | 1 年前3
Python in Azure Functions 基于Python的Azure Functions实践 赵健And Windows Containers IaaS (Infrastructure as a Service) Base Cloud Environment and cross-cutting concerns: Network, Hybrid-cloud, Identity/Auth, Cost control and Operations model Azure Azure 粘合剂0 码力 | 28 页 | 12.57 MB | 1 年前3
PostgreSQL 查询优化器解析driven institution in the field of data computing • PieCloudDB, OpenPie’s flagship product, is a cutting- edge cloud-native data warehouse. It delivers elastic, highly available, and fully adaptable distributed0 码力 | 37 页 | 851.23 KB | 1 年前3
Debian 快速參考手冊• stable:— 適用於架設產品化伺服器,該版本只會更新安全性修正的套件。 • testing:— 工作站的首選,該版本包含了較新版本的桌面軟體以及測試。 • unstable: — Cutting edge。Debian 開發者的選擇。 當unstable的軟體在第一個禮拜或更久沒有 release-critical(RC)的臭蟲時,便會自動移動 到testing。 Debian 發行版本也有代號。0 码力 | 29 页 | 862.98 KB | 1 年前3
httpd 2.2.29 中文文档entities. If the width of the description column should happen to truncate a tagged element (such as cutting off the end of a bolded phrase), the results may affect the rest of the directory listing. Arguments particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction0 码力 | 1854 页 | 1.48 MB | 1 年前3
httpd 2.2.27 中文文档entities. If the width of the description column should happen to truncate a tagged element (such as cutting off the end of a bolded phrase), the results may affect the rest of the directory listing. Arguments particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction0 码力 | 1849 页 | 1.47 MB | 1 年前3
httpd 2.2.31 中文文档entities. If the width of the description column should happen to truncate a tagged element (such as cutting off the end of a bolded phrase), the results may affect the rest of the directory listing. Arguments particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction0 码力 | 1860 页 | 1.48 MB | 1 年前3
httpd 2.2.27.dev 中文文档entities. If the width of the description column should happen to truncate a tagged element (such as cutting off the end of a bolded phrase), the results may affect the rest of the directory listing. Arguments particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction0 码力 | 1849 页 | 1.47 MB | 1 年前3
httpd 2.2.32 中文文档entities. If the width of the description column should happen to truncate a tagged element (such as cutting off the end of a bolded phrase), the results may affect the rest of the directory listing. Arguments particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction particular server configuration, so it's important that you understand them, rather than merely cutting and pasting the examples into your configuration. See also Module documentation mod_rewrite introduction0 码力 | 1866 页 | 1.48 MB | 1 年前3
共 104 条
- 1
- 2
- 3
- 4
- 5
- 6
- 11













