hadoop ubuntu

production environment Hadoop large cluster fully distributed mode installation 2013-3-7 Installation Environment Operating platform: Vmware2 Operating system: Oracle Enterprise Linux 5.6 Software version: Hadoop-0.22.0,jdk-6u18 Cluster Architecture: Node,master node (hotel01), slave node (hotel02,hotel03 ...) Host name IP System version

: ./bin/spark-shell Connect Jupyter notebook and spark via Pysparkexport SPARK_HOME=/usr/local/sparkexport PYTHONPATH=\(SPARK_HOME/python:\)SPARK_HOME/python/lib/py4j-0.10.6-src.zip:\(PYTHONPATH export PATH=\)HADOOP_HOME/bin:\(SPARK_HOME/bin:\)PATHexport LD_LIBRARY_PATH=\(LD_LIBRARY_PATH:/usr/local/hadoop/lib/native\){LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}export PYSPARK_DRIVER_PYTHON="jupyter"export PYSPARK_DRIVER_PYTHON_OPTS="notebook"ex

/bin/env python"""A more advanced Reducer, using Python iterators and generators."""from itertools import groupbyfrom operator import itemgetterimport sysdef read_mapper_output(file, separator='\t'): for line in file: yield line.rstrip().split(separator, 1)def main(separator='\t'): # input comes from STDIN (standard input) data = read_mapper_output(sys.stdin, separator=separator) # groupby groups multiple word-count pairs by word, # and creates an iterator that returns cons

Chapter 1 Meet HadoopData is large, the transfer speed is not improved much. it's a long time to read all data from one single disk-writing is even more slow. the obvious way to reduce the time is read from multiple disk once.The first problem to solve is hardware failure. The second problem is that most analysis task need to be able to combine the data in different hardware. Chapter 3 The Hadoop Distributed FilesystemFilesystem that manage storage h

Hadoop cannot be started properly (1) Failed to start after executing $ bin/hadoop start-all.sh. Exception 1 Exception in thread "Main" Java. Lang. illegalargumentexception: Invalid URI for namenode address (check fs. defaultfs): file: // has no authority. Localhost: At org. Apache. hadoop. HDFS. server. namenode. namenode. getaddress (namenode. Java: 214) Localh

Original: http://blog.anxpp.com/index.php/archives/1036/ Hadoop single node mode installation Official Tutorials: http://hadoop.apache.org/docs/r2.7.3/ This article is based on: Ubuntu 16.04, Hadoop-2.7.3 One, overview This article refers to the official documentation for the installation of Hadoop single node mode (l

First explain the configured environmentSystem: Ubuntu14.0.4Ide:eclipse 4.4.1Hadoop:hadoop 2.2.0For older versions of Hadoop, you can directly replicate the Hadoop installation directory/contrib/eclipse-plugin/hadoop-0.20.203.0-eclipse-plugin.jar to the Eclipse installation directory/plugins/ (and not personally verified). For HADOOP2, you need to build the jar f

First, the fast start of Hadoop Open source framework for Distributed computing Hadoop_ Introduction Practice Forbes: hadoop--Big Data tools that you have to understand Getting started with Hadoop for distributed data processing---- Getting Started with Hadoop A graphical illustration of the evolution of

First step: Prepare three virtual machines and create 3 Hadoop usersModify the Hosts file as follows: sudo vim/etc/hosts 127.0.0.1 localhost #127.0.1.1 ubuntu-14.04-server ubuntu-14 #一定要注释掉 10.0.83.201 CDH 10.0.83.202 CDH1 10.0.83.173 CDH2and modify the host name of each host: sudo vim/etc/hostname CHD The second step: three hosts to c

Hadoop version: hadoop-2.5.1-x64.tar.gz The study referenced the Hadoop build process for the two nodes of the http://www.powerxing.com/install-hadoop-cluster/, I used VirtualBox to open four Ubuntu (version 15.10) virtual machines, build four nodes of the

Build a fully distributed Hadoop-2.4.1 Environment 1. The configuration steps are as follows:1. Build the host environment. Five virtual machines are used to build the Hadoop environment on Ubuntu 13.2. Create a hadoop user group and a hadoop user, and assign permissions to

ArticleDirectory Obtain Java Obtain hadoop Set Environment Variables Configure hadoop-env.sh Configure core-site.xml Configure hdfs-site.xml Configure mapred-site.xml Install HDFS Start hadoop Simple debugging Obtain Java Obtain hadoop Set Environment Variables Configure

Inkfish original, do not reprint commercial nature, reproduced please indicate the source (http://blog.csdn.net/inkfish). Hadoop is an open source cloud computing platform project under the Apache Foundation. Currently the latest version is Hadoop 0.20.1. The following is a blueprint for Hadoop 0.20.1, which describes how to install

Inkfish original, do not reprint commercial nature, reproduced please indicate the source (http://blog.csdn.net/inkfish). Hadoop is an open source cloud computing platform project under the Apache Foundation. Currently the latest version is Hadoop 0.20.1. The following is a blueprint for Hadoop 0.20.1, which describes how to install

Install Hadoop in standalone mode-(1) install and set up a virtual environment for hadoop StandaloneZookeeper There are a lot of articles on how to install Hadoop in standalone mode on the network. Most of the articles that follow these steps fail, and many detours have been taken, but all the problems have been solved after all, by the way, you can record the co

.................................... ........................................ ........................................ ................. is the ID here consistent with namenode namespaceID = 942590743 in the hadoop-root-datanode-hadoop.log? (4) After the modification, re-run datanode [root @ hadoop current] # hadoop-daemon.sh start datanode [root @

Hadoop In The Big Data era (1): hadoop Installation If you want to have a better understanding of hadoop, you must first understand how to start or stop the hadoop script. After all,Hadoop is a distributed storage and computing framework.But how to start and manage t

This series of articles describes how to install and configure hadoop in full distribution mode and some basic operations in full distribution mode. Prepare to use a single-host call before joining the node. This article only describes how to install and configure a single node. 1. Install Namenode and JobTracker This is the first and most critical cluster in full distribution mode. Use VMWARE virtual Ubuntu