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原创报表评估

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2016-09-01 09:05:21 619

原创文档_报表

1.需求1.1分析主题2.2数据说明3.需求评估

2016-08-29 08:56:00 410

原创 Drill的tpc-ds测试

1 环境：5个节点，然后每个节点默认配置 drill-env.sh2.测试内容ansidrill说明执行时间query1√FOREMAN: SZB-L0032015TOTAL FRAGMENTS: 147Total rows returned : 100. Returned in 118941ms.100 rec

2016-08-22 16:46:32 711

原创 spark源码阅读之spark-shell

首先我们来看SPARK_HOME/bin/spark-shell脚本，内容：function main() { if $cygwin; then stty -icanon min 1 -echo > /dev/null 2>&1 export SPARK_SUBMIT_OPTS="$SPARK_SUBMIT_OPTS -Djline.terminal=unix" "

2016-06-25 20:48:00 1952

原创 MyEclipse中代码的格式化，注释模板以及保存时自动格式化

1,设置代码格式化模板

2014-05-04 11:59:15 827

原创 JavaEE知识之servlet总结

1.概述：servlet是sun公司提供的一门用于开发动态web资源的技术，servlet

2014-05-01 19:43:29 546

原创 java百问总结（四）

1.The equals() and hashCode() Contract ①.If two objects are equal, then they must have the same hash code. ②.If two objects have the same hashcode, they may or may not be equal.2.Java Exce

2014-04-02 18:57:46 502

原创 java百问总结（三）

1.How Compiler is works? Compiler consists the following phases: Lexical Analysis, Syntax Analysis, Semantic Analysis, IR Generation, IR Optimization, Code Generation, Optimization. //编译器主要包括下面几

2014-03-31 15:56:27 573

原创 java百问总结（二）

1.Java Reflection Tutorial ①.What is reflection? Reflection is commonly used by programs which require the ability to examine or modify the runtime behavior of applications running i

2014-03-28 19:17:28 728

原创 java百问总结（一）

1.what is reflection and introspeaction ? //关于反射 ①.Introspection is a subset of reflection,introspection is the ability of a program to examine the type or properties of an object at runtime.

2014-03-21 18:11:49 585

黑马入学测试题

黑马入学测试题，共计10道,是andord的方向...

2014-02-22

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