Install and configure Mahout-distribution-0.7 in the Hadoop Cluster
System Configuration:
Ubuntu 12.04
Hadoop-1.1.2
Jdk1.6.0 _ 45
Mahout is an advanced application of Hadoop. To run Mahout, you must install
Mac OS hadoop mahout Installation
1. Download hadoop, mahout:
You can download it directly from labs.renren.com/apache-#/hadoopand labs.renren.com/apache-#/mahout.
2. Configure the hadoop configuration file:
(1) core-site.xml:
(2
: Published in 2012, corresponding to Mahout version 0.5, is currently mahout the latest book books. At present, only English version, but a bit, the inside vocabulary is basically a computer-based vocabulary, and map and source code, is suitable for reading.? IBM mahout Introduction: http://www.ibm.com/developerworks/cn/java/j-
mahout (or Hadoop) takes precedence over loading jar packages with user-specified classpathProblem: When using mahout0.8, Java.lang.NoSuchMethodError:org.apache.lucene.util.PriorityQueue appearsSimilar http://www.warski.org/blog/2013/10/using-amazons-elastic-map-reduce-to-compute-recommendations-with-apache-mahout-0-8/Reason:$
Hadoop mahout Data Mining Practice (algorithm analysis, Project combat, Chinese word segmentation technology)Suitable for people: advancedNumber of lessons: 17 hoursUsing the technology: MapReduce parallel word breaker MahoutProjects involved: Hadoop Integrated Combat-text mining project mahout Data Mining toolsConsult
Environment:Hadoop-2.5.0-cdh5.2.0
Mahout-0.9-cdh5.2.0
Steps:The basic idea is to introduce all jar packages under mahout into hadoop's classpath, So we modified $ hadoop_home/etc/hadoop/hadoop-env.sh, add the following code to introduce all jar packages of mahout into hadoop
Hadoop mahout Data Mining Practice (algorithm analysis, Project combat, Chinese word segmentation technology)Suitable for people: advancedNumber of lessons: 17 hoursUsing the technology: MapReduce parallel word breaker MahoutProjects involved: Hadoop Integrated Combat-text mining project mahout Data Mining toolsConsult
Question 1:
Java.lang.IncompatibleClassChangeError:Found interface Org.apache.hadoop.mapreduce.JobContext, but class was Expectedat org.apache.mahout.common.HadoopUtil.getCustomJobName (Hadooputil.java:174) at Org.apache.mahout.common.AbstractJob.prepareJob (Abstractjob.java:614) at Org.apache.mahout.cf.taste.hadoop.preparation.PreparePreferenceMatrixJob.run (Preparepreferencematrixjob.java: ) at Org.apache.hadoop.util.ToolRunner.run (Toolrunner.java:70)
I was fortunate enough to take the MOOC college Hadoop experience class at the academy.This is the little Elephant College hadoop2. X's Notes As the usual data mining do more, so the priority to see Mahout direction video.Mahout has good extensibility and fault tolerance (based on hdfsmapreduce development), which realizes most commonly used data mining algorithms (clustering, classification, recommendation
Complete the build on Hadoop, start running a few small tests, after all, for the first time, encountered some minor problems.
First, the steps in resources to verify that the installation was successful.
Upload the download data synthetic_control.data to the HDFs, with the following command
(1) Hadoop fs-mkdir testdata(Note that the folder path for this command must be the same as above, not other forms su
}, 1.0 when consistent, 1.0 for inconsistencies.Description: Calculations are very slow and have a large number of sorts. For data sets in Recommender systems, it is inappropriate to use spearman rank correlation coefficients as similarity measures.Manhattan DistanceClass Name: CityblocksimilarityPrinciple: The realization of the Manhattan distance, similar to the continental distance, are used to measure the spatial distance of the multidimensional dataRange: [0,1], consistent with the European
From: http://www.codesky.net/article/201206/171862.htmlThe taste framework of mahout is the implementation of collaborative filtering algorithm. It supports Datamodel, such as files, databases, NoSQL storage, and so on, and also supports the mapreduce of Hadoop. Here the main analysis is based on the implementation of Mr.The main flow of CF based on Mr is in the Org.apache.mahout.cf.taste.Hadoop.item.Recomm
Premise: Machine networking
(1) Use SVN download mahout latest source code, check out http://svn.apache.org/repos/asf/mahout/trunkNote: release source code under the http://archive.apache.org/dist/mahout/
(2) download Maven, download the binary version of The maven-3.0.3 here, download in the http://archive.apache.org/dist/maven/binaries/, after the download is c
Execution Process and corresponding output information on the Web page.
For more information, see instructions.
Mahout Interest Group
You can register and log on to the open research community of Baidu and use the same account to log on to the Open Research cloud platform of Baidu (the platform is still in the applicable stage and the account name must be a combination of English numbers ). The Baidu open research community has not yet been official
The following software is widely used in the Internet industry, but its pronunciation is often "one English, each expressing"
Nagios is the IT infrastructure monitoring software, Home PageHttp: // www.Nagios. Org/
(As pronounced by Ethan, the author of Nagios ):
Http://community.nagios.org/audio/nagiospronunciation.mp3
Cacti is a graphic tool for network traffic monitoring.Http ://Www.Cacti. Net/
English pronunciation http://www.forvo.com/word/cacti/
Nginx is a lightweight w
Let mahout kmeans cluster analysis run on Hadoop
This article is very good, for my novice mahout novice, the original address: http://yoyzhou.github.io/blog/2013/06/04/mahout-clustering-with-hadoop/
The previous article, "Mahout
I. Introduction of MahoutCheck the Chinese meaning of mahout--the people, and then look at Mahout logo, well, want to play with the small yellow elephant happy, have to accompany the person to accompany the man to play a trick ...Attached Logo:(That's him, the mahout on the Elephant's head)Step into the text:Mahout is a powerful data mining tool that is a collect
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