sparkcontext example

An official example of this articlehttp://blog.csdn.net/dahunbi/article/details/72821915Official examples have a disadvantage, used for training data directly on the load came in, do not do any processing, some opportunistic. Load and parse the data file. Val data = Mlutils.loadlibsvmfile (SC, "Data/mllib/sample_libsvm_data.txt") In practice, our spark are all architectures on Hadoop systems, and tables are stored on HDFS, so the normal way t

Spark Streaming Application Simple example Package Com.orc.stream Import org.apache.spark.{ sparkconf, Sparkcontext} import org.apache.spark.streaming.{ Seconds, StreamingContext} /** * Created by Dengni on 2016/9/15. Today also are mid-Autumn Festival * Scala 2.10.4 ; 2.11.X not Works * Use method: * Start this program in this window * 192.168.184.188 Start command nc-l 7777 input valu

First, enter the IDE interfaceCD ~/downloads/idea/binidea.shIi. Building a Scala projectStep 1 : Import spark-hadoop corresponding package, select "File" –> "Project Structure" –> "Libraries", select "+" to import Spark-hadoop corresponding package:Click "OK" to confirm:Click "OK":When idea is done, we'll find that Spark's jar package is imported into our project:Step two, write Scala code implementation wordcountImport SparkcontextImport Sparkcontext

Example analysis of credit rating model (taking consumer finance as an example)original 2016-10-13 Canlanya General Assembly data Click "Asia-General data" to follow us!the fifth chapter analysis and treatment of self-variableThere are two types of model variables, namely, continuous type variables. A continuous variable refers to the actual value of the variable as observed data, and is not processed by a

ElasticSearch configuration example and elasticsearch example ##################### ElasticSearch configuration example ################ ##### # This file contains an overview of various configuration settings,# Targeted at operations staff. Application developers shoshould# Consult the guide.# This file contains an overview of various configurations. It is desig

Classic array example and classic array example Example 1: average score of Students 1 public static void main (String [] args) {2 inputs input = new inputs (System. in); 4 int scores [] = new int [5]; 5 int sum = 0; 6 7 System. out. println ("Enter the score of five students:"); 8 for (int I = 0; I Example 2: output

Python combination mode and responsibility chain mode programming example, python example Combination ModeWe regard the Composite mode as a complex attribute structure. In fact, there are basically three roles: trunk (defining some operations for leaf) and branches (many branches on the trunk) and the leaf (the object that the trunk wants to operate on), the Composite mode helps us implement: that is, they

SQL Injection principle and solution code example, SQL example 1. What is SQL injection? 1. What is SQL injection? SQL injection is to insert SQL commands into Web forms to submit or input query strings for domain names or page requests, and finally fool the server to execute malicious SQL commands, for example, most of the previous VIP member passwords leaked by

The basic usage example of the Yii Framework of PHP, and the yii Framework example. The basic usage example of the Yii Framework in PHP. the yii Framework example shows CGridView in the automatically generated Yii code on the admin interface. This is a basic example of Yii F

PHP implementation of simple syntax highlighting function example analysis, highlighting case analysis In this paper, a simple syntax highlighting function for PHP implementation is described. Share to everyone for your reference. The specific analysis is as follows: This is a PHP implementation of a simple syntax highlighting function, Note: This function design is relatively simple, may not highlight some of the syntax, you can expand the function

Android client-server interaction login example, android example Today, I learned how the android client interacts with the server, and found that it is actually a bit similar to the web. Then I found a logon example on the Internet based on IntentService. 1. Simple servlet is used in the background, and GET or POST is supported. The servlet returns a flag strin

following jar package (for example, place the package in the/opt/spark/managed-lib/directory, which can be arbitrary ): cassandra-clientutil-3.0.2.jarcassandra-driver-core-3.1.4.jarguava-16.0.1.jarcassandra-thrift-3.0.2.jar joda-convert-1.2.jarjoda-time-2.9.9.jarlibthrift-0.9.1.jarspark-cassandra-connector_2.10-1.5.1.jar Under the/opt/spark/conf directory, create a spark-env.sh file and enter the following content SPARK_CLASSPATH=/opt/spark/managed-l

Vue. js learning example and vue. js learning example This article will share with you a summary of Vuejs and a small example of webapi calling. At the end of the year, I will try to share more with you, hoping to help you; in this chapter, I hope you will like it, and I also hope you can scan more code for support and recommendations. Thank you: » Vuejs-learnin

Php implements the search encapsulation example, and php implements the encapsulation example. Php implements a search encapsulation example. php implements an encapsulation example. This article shares an example of php implements a search encapsulation for your reference.

Simple implementation for PHP single mode First we need to know the concept of a single case pattern, so what is a single case pattern? Singleton mode, as the name suggests, is only one instance. As an object's creation pattern, the singleton pattern ensures that a class has only one instance, and instantiates it and supplies the instance to the entire system. We call this Class A single instance class. The main points of a single case pattern are three: One is that a clas

Simple Example of HTML5 form verification, html5 form exampleThis article mainly introduces a simple example of using HTML5 form verification, including a small example of using a mobile phone. For more information, see HTML5 provides the patern attribute for form elements. It accepts a regular expression. When a form is submitted, this regular expression is used

Simple paging class and usage example implemented by PHP, and php paging usage example. PHP simple paging class and usage example. php paging usage example this article describes the simple paging class and usage of PHP implementation. For your reference, refer to the simple pagination class and usage

CodeIgniter pagination usage example, codeigniter example. CodeIgniter pagination usage example. codeigniter example this article describes how to use CodeIgniter pagination. For your reference, refer to the following code: CodeIgniter pagination usage example and codeignite

Destoon implements a multi-table query example and Destoon implementation example. Destoon implements a multi-table query example. Destoon implements an example in this article to implement a Destoon multi-table query. It is of great practical value in the secondary development of destoon. Specific Implementation metho

Heaven Zhuhai Branch Rudder note : Originally this series is to prepare a book, details please see the earlier blog "to seek partners to write the deep understanding of Monkeyrunner" books. But for many reasons, there is no wish. So the draft is shared here, so mistakes are unavoidable. If necessary, please refer to the following, the forwarding of the word also keep the end of each article source and other information. In the previous section, we learned how to establish a connection betwe