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Pig installation and simple use (Pig version 0.13.0,hadoop version 2.5.0)

Original address: use MapReduce for data analysis. When the business is more complex, the use of MapReduce will be a very complex thing, such as you need to do a lot of preprocessing or transformation of the data to be able to adapt to the MapReduce processing mode, on the other hand, write a mapreduce program, Publishing and running jobs will be a time-consuming task.The appearance of pig makes up for

Flappy Pig Small Game Source Analysis (4)--core pig module (not yet to be continued)

After the warm-up, we have to move a little more seriously, the game called Flappy Pig, our pig is finally coming out.The usual, look at the directory structure, the reader to the directory structure to think back to the several modules we have explained:Where Game.js is the game main program, Option.js is the game profile, Util is our common tool library function.So what is

Pig practice summary of commonly used pig syntax, teach you quick start-Algorithm

This article mainly comes from Google's self-Summary, and summarizes the commonly used pig syntax, that is, "algorithm ". Basic concepts:Relation bag tuple field dataRelation = bag)A package is a collection of tuple. In pig, {} is used to expand a package.A tuple is an ordered set of several fields. In the pig data structure, () is expanded to identify a tuple.A

Pig script does not need suffix name (Python tempfile module generates pig script temp file, executes)

The pig script does not need a suffix name to runpig脚本名为tempfile,无后缀名用pig -f tempfile 可直接运行另外,pig tempfile也可以直接运行This allows you to directly invoke the contents of the pig script in a python temporary fileA way for Python to invoke the pig script将

Installation and Operation of pig-0.12.0-cdh5.1.2, one of the pig Series

The version used here is the pig-0.12.0-cdh5.1.2 of the cdh release. Click here 1. Pig introduction: Pig is a project donated by Yahoo to Apache. It is an SQL-like language and an advanced query language built on mapreduce, compile some operations into map and reduce of the mapreduce model, and you can define your own functions. This is another clone Google p

Pig System Analysis (8) Pig scalability

This article is the last in the Pig System Analysis series, which mainly discusses how to extend the pig function, not only to introduce the UDFs extension mechanism provided by pig itself, but also to explore the possibility of pig extension from the architecture. Supplemental Note: A few days ago colleagues found Tw

Pig and Python (pig and Python)

Python is really everywhere in the country.Pig 0.9 after python as an embedded voice, using the Jython interpreter to use the python2.5 feature, this interface is the topmost org.apache.pig.scripting.PigFirst the Python script translates some pig latin. Then pass the variable defined in Python to it and run it last.1) Pig.compile or compilefromfile to pre-compile the code2) The Bind method binds a variable in the control flow to a variable in the

Are all buying a house pig? Or is it a pig or a wolf?

Pig gets rich through hard work and has 5 yuan of money in the money Village opened by a mouse. The pig wants to build a nest with the 5 yuan, and the big cover will spend 2 yuan to sell the land and 3 yuan to build a nest. Wang Ba is engaged in Engineering. He wants to make more money on pigs, so he finds a way to become an investment consultant. The Fox said: This is a good job. So the wolf who managed th

Node. js for front-end pig and Node. js for pig

Node. js for front-end pig and Node. js for pigFront-end pig flying traditional front-end pig most of the work is the page layout, rendering and animation effects, playing with is always a web shell, because there is no background support, this always makes front-end pig feel a little uncomfortable. The emergence of No

Cute pig--pig.

Pig provides an engine for parallel data flow processing based on Hadoop, which describes the data flow in pig Latin, which is equivalent to a directed acyclic graph (DAG), which represents the operator that handles the data, and the vectors between nodes represent the data flow.Pig provides standard SQL-like operations that are easier to maintain than direct write MapReduce code, primarily for ETL, native

A small fable: "Pig's Vision" _ Pig's vision

The vision of the pig The pig ran into the large house courtyard Mishi, the horse circle next to the kitchen, it stroll around. Garbage in the arch food, horse dung rest, inevitably sewage toppings like rain. It had been a round of home, and it was the same. Met the shepherd, the Shepherd accosted: "This time you can open your eyes, old pig." It is said that ri

Pig System Analysis (7) Pig Utility class

Explain Explain is a pig-provided debugging tool that uses explain to output pig lation execution plans. It is worth mentioning that explain supports the-DOT option to output the execution plan in DOT format (dot is a graphical description language, refer to Code implementation detailed in Org.apache.pig.impl.plan.DotPlanDumper, this part of the implementa

Learn happiness from Pig

contribution to the old pig is "broken up and broken down! Why can't I be favored? Although I once had dissatisfaction and jealousy in my heart, when I think of Lao Tzu's teaching, I feel as calm as I have been. If this is not the case, all of them will become "skinny" if they will get angry all day! The most fundamental reason for pig's optimism lies in the good nature. Since its ancestor was tame by humans, it has been in harmony with people. In Ch

How does a lazy pig make money? How long does the lazy pig bring up the account?

What is a little lazy pig: Small lazy pig business model: through QQ,YY, micro-letter, Wang Wang, micro-Bo and other social tools, in the global promotion of everyone, to create a true forwarding both the money, the registration of the benefit of the multiple benefits model; Small Lazy Pig App Money method Detailed: Small knitting here for you to introduce

Pig Data Structure Learning notes (3), pig Data Structure Learning

Pig Data Structure Learning notes (3), pig Data Structure Learning Pig's Data Structure Study Notes (3) Single-chain table of linear table This chapter introduces: In the previous section, we saw the sequence table in the first linear table data structure; When you write the operation code several times by yourself, you will feel a little bit confused. If you want to write the sequence table Insert an alg

Pig Data Structure Learning notes (2), pig Data Structure Learning

Pig Data Structure Learning notes (2), pig Data Structure Learning Pig's Data Structure Learning notes (2) Sequence Table in linear table This section introduces: In the previous chapter, we learned about the concepts related to data structures and algorithms, and learned about the concepts related to data structures. The difference between the logical structure and the physical structure, the characteris

Pig Data Structure Learning notes (1). Pig Data Structure Learning

Pig Data Structure Learning notes (1). Pig Data Structure Learning Pig's Data Structure Learning notes (1) Introduction to data structures and algorithms This section introduces: We have learned the basic C language series before. In this series, we will further learn about the data structure and Algorithm, which is very important and difficult to learn. The number of people stuck in this subject is requ

Pig C ++ note BASICS (5) expressions and statements, pig Basics

Pig C ++ note BASICS (5) expressions and statements, pig BasicsPig C ++ note BASICS (Part 5) Keywords: expressions, statements The content in this chapter is relatively simple, and there is basically no difficulty in understanding it. It is a matter of knowledge. I was not prepared to write it first, but now I have to take notes and write it. After all, there are some gains. So, I just put forward some poin

Pull down the ViewPager of a pig pod and view pager of a pig pod

Pull down the ViewPager of a pig pod and view pager of a pig pod There is a ViewPager layout in the application details page of pods. A view that can be expanded up or down is added to the layout header to display the application data. Basically, the idea is to use ViewDragHelper to drag to control the layout of the view in the header. When the TopView is visible, the gesture event is intercepted by the dra

Install pig and use pig to process this log

Configure pig environment variables to meet the mapreduce Mode Vi. bashrc Path = $ path: $ home/bin:/usr/lib/JVM/Java-6-sun- /home/yangze/soft/hadoop-0.20.2/binExport pathExport java_home =/usr/lib/JVM/Java-6-sun- pig_classpath =/home/yangze/soft/pig-0.9.2/ConfExport hadoop_conf_dir =/home/yangz

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