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Hive 导入 parquet 格式数据 Parquet 格式文件，查看Schema Parquet 之mapreduce Hive 导入 parquet 格式数据
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posted @ 2019-01-10 16:45
PanPan003
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parquet列式文件实战 parquet code demo http://www.programcreek.com/java-api-examples/index.php?source_dir=hiped2-master/src/main/java/hip/ch3/parquet/Example
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posted @ 2019-01-10 16:42
PanPan003
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大数据架构 大数据架构：搭建CDH5.5.1分布式集群环境 Hive 大数据：Hive常用参数调优 Spark Spark基本架构及原理 SparkContext原理解析 Spark RDD、DataFrame原理及操作详解 Spark On Yarn的两种模式yarn-cluster和yarn-c
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posted @ 2019-01-10 16:41
PanPan003
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Spark 学习: spark 原理简述与 shuffle 过程介绍
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posted @ 2019-01-10 16:40
PanPan003
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Spark基本架构及原理 Spark(一): 基本架构及原理 Hadoop 和 Spark 的关系 Spark 运算比 Hadoop 的 MapReduce 框架快的原因是： 因为 Hadoop 在一次 MapReduce 运算之后,会将数据的运算结果从内存写入到磁盘中,第二次 Mapredue 运
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posted @ 2019-01-10 15:43
PanPan003
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Parquet文件结构笔记 一个Parquet文件是 由一个header以及一个或多个block块组成，以一个footer结尾。 header中只包含一个4个字节的数字PAR1用来识别整个Parquet文件格式。 文件中所有的metadata都存在于footer中。 footer中的metadata
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posted @ 2019-01-10 15:19
PanPan003
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原文 Parquet 列式存储格式 面向分析型业务的列式存储格式 由 Twitter 和 Cloudera 合作开发，2015 年 5 月从 Apache 的孵化器里毕业成为 Apache 顶级项目 列式存储 列式存储和行式存储相比有哪些优势呢？ 当时 Twitter 的日增数据量达到压缩之后的 1
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posted @ 2019-01-10 11:29
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posted @ 2019-01-10 11:28
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posted @ 2019-01-10 11:27
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posted @ 2019-01-10 11:26
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error 信息： kubectl 获取node的host地址 或者在Kubernetes的service中进行查看 进入其他的node，其curl有问题的service 查看路由 ipconfig /all 确认IP地址，确认网关，DNS、子网掩码 是否正确 有一项出现0.0.0.0，标识路由器没
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posted @ 2019-01-09 20:08
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--Find the PID by running this sql: SELECT pid , query, * from pg_stat_activity WHERE state != 'idle' ORDER BY xact_start; --You'll find the pid in the first (left) column, and the first (top) r...
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posted @ 2019-01-07 12:20
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posted @ 2019-01-02 12:37
PanPan003
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Spring boot 框架了解，java
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posted @ 2019-01-02 10:25
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posted @ 2019-01-02 10:16
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GETTING DDD STARTED SURROUNDED BY LEGACY SYSTEMS ByEric Evans
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posted @ 2018-12-29 18:45
PanPan003
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相关链接： Separation of Concerns 原文 The Art of Separation of Concerns Introduction In software engineering, Separation of Concerns refers to the delineati
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posted @ 2018-12-29 13:25
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原文 The Hollywood Principle states, “Don’t Call Us, We’ll Call You.” It’s closely related to the Dependency Inversion Principle, and illustrates a diff
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posted @ 2018-12-29 13:10
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Explicit Dependencies Principle The Explicit Dependencies Principle states: Methods and classes should explicitly require (typically through method pa
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posted @ 2018-12-29 12:48
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原文 The principle of Persistence Ignorance (PI) holds that classes modeling the business domain in a software application should not be impacted by how
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posted @ 2018-12-29 12:17
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MultipleCanonicalModels Scratch any large enterprise and you'll usually find some kind of group focused on enterprise-wide conceptual modeling. Most c
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posted @ 2018-12-29 12:09
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原文 BoundedContext Bounded Context is a central pattern in Domain-Driven Design. It is the focus of DDD's strategic design section which is all about d
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posted @ 2018-12-29 11:28
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Tight Coupling, Legos, and Super Glue
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posted @ 2018-12-28 15:23
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ASP.NET - 使用依赖关系注入在 ASP.NET Core 中编写干净代码
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posted @ 2018-12-28 15:22
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How to register a service with multiple interfaces in ASP.NET Core DI
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posted @ 2018-12-28 15:21
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ASP.NET Core Middleware
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posted @ 2018-12-28 15:20
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Configuration in ASP.NET Core App configuration in ASP.NET Core is based on key-value pairs established by configuration providers. Configuration prov
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posted @ 2018-12-28 15:19
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Options pattern in ASP.NET Core
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posted @ 2018-12-28 15:19
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原文 "If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization." - Gerald We
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posted @ 2018-12-28 15:17
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The SOLID principles The SOLID principles of Object Oriented Design include these five principles: SRP – Single Responsibility Principle OCP – Open/Cl
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posted @ 2018-12-28 15:09
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New is Glue When you’re working in a strongly typed language like C# or Visual Basic, instantiating an object is done with the new keyword. It’s impor
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posted @ 2018-12-28 13:22
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Static Cling Sticking Your Code To Things Unnecessarily Static Cling is a code smell used to describe the undesirable coupling introduced by accessing
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posted @ 2018-12-28 12:05
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原文 github地址 ASP.NET Core supports the dependency injection (DI) software design pattern, which is a technique for achieving Inversion of Control (IoC)
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posted @ 2018-12-28 11:48
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posted @ 2018-12-28 10:17
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Validator.destroy() Destroys this instance of validator freeing up resources and unregistering events. jQuery.validator.methods Object holding all val
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posted @ 2018-12-27 17:49
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原文 :unchecked Selector Selects all elements that are unchecked. jQuery( ":unchecked" ) Inversion of :checked. jQuery( ":unchecked" ) Inversion of :che
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posted @ 2018-12-27 17:29
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step method step method Makes the element require a given step. step( value ) value Type: Number Step value required step( value ) value Type: Number
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posted @ 2018-12-27 17:24
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原文 .validate() validate( [options ] ) options Type: Object debug (default: false) Type: Boolean Enables debug mode. If true, the form is not submitted
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posted @ 2018-12-27 16:49
PanPan003
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jQuery validator 主页 github地址 demo学习 效果： Validate forms like you've never validated before! 自定义Validate： doesn't jQuery make it easy to write your own
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posted @ 2018-12-27 16:04
PanPan003
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1.add method 2.validate事件绑定 3.调用 4.其他 相关html 相关js引用 C# 单个email的正则验证 参考资料： (multiple) emails in jQuery Validated text input example Javascript multiple
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posted @ 2018-12-27 14:30
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