The Employee table holds all employees including their managers. Every employee has an Id,
and there is also a column for the manager Id.
+----+-------+--------+-----------+
| Id | Name | Salary |...
分类:
数据库 时间:
2015-05-24 08:54:04
阅读次数:
201
CombinationSumIITotalAccepted:34820TotalSubmissions:138493MySubmissionsQuestionSolutionGivenacollectionofcandidatenumbers(C)andatargetnumber(T),findalluniquecombinationsinCwherethecandidatenumberssumstoT.EachnumberinCmayonlybeusedonceinthecombination.Note:A..
分类:
其他好文 时间:
2015-05-23 06:33:41
阅读次数:
191
CDH (Cloudera’s Distribution, including Apache Hadoop),是Hadoop众多分支中的一种,由Cloudera维护,基于稳定版本的Apache Hadoop构建,并集成了很多补丁,可直接用于生产环境。
Cloudera Manager则是为了便于在集群中进行Hadoop等大数据处理相关的服务安装和监控管理的组件,对集群中主机、Hadoop、Hive...
分类:
其他好文 时间:
2015-05-22 21:16:48
阅读次数:
238
官方是这样说的:Directory to use for "scratch" space in Spark, including map output files and RDDs that get stored on disk. This should be on a fast, local di...
分类:
其他好文 时间:
2015-05-18 18:19:14
阅读次数:
232
- Use certificates with at least sha-256 hash algorithms (including intermediate certificates).- Use strong cipher suites (only 3 are allowed on my se...
分类:
其他好文 时间:
2015-05-16 01:28:28
阅读次数:
160
前言:CDH是由Cloudera公司发行的Hadoop版本,全称(Cloudera‘s Distribution Including Apache Hadoop)。该版本基于原生Apache Hadoop版本进行改进,添加了补丁和自行开发的组件,更加稳定易用。并且Cloudera公...
分类:
其他好文 时间:
2015-05-15 18:09:09
阅读次数:
204
前言:CDH是由Cloudera公司发行的Hadoop版本,全称(Cloudera's Distribution Including Apache Hadoop)。该版本基于原生Apache Hadoop版本进行改进,添加了补丁和自行开发的组件,更加稳定易用。并且Cloudera公司已将CDH开源,可以不依靠CM也可以进行独立安装,目前来看在国内市场占有比重较大。本文采用CM方式进行安装,安装环境...
分类:
其他好文 时间:
2015-05-15 13:45:24
阅读次数:
231
Implement wildcard pattern matching with support for '?' and '*'.'?' Matches any single character.'*' Matches any sequence of characters (including th...
分类:
编程语言 时间:
2015-05-14 18:21:58
阅读次数:
152
Know Your LimitsGreg ColvinMan’s got to know his limitations.
—Dirty HarryYOUR RESOURCES ARE LiMiTED. You only have so much time and money to do your work, including the time and mo...
分类:
其他好文 时间:
2015-05-13 10:23:04
阅读次数:
109
Application Design Concepts and PrinciplesIdentify the effects of an object-oriented approach to system design including the effect of encapsulation, ...
分类:
编程语言 时间:
2015-05-11 14:22:22
阅读次数:
144