whats cdh

Add Virtual Machine node balancing data operations to the CDH cluster (Tutorial), cdh Virtual Machine Note: The premise is that a new Virtual Machine node has been installed and the corresponding cdh has been installed. You can modify the host name, ip address, mac, and other operations on your own. This article only adds the cluster balance data operation to t

Uninstall the CDH script and cdh script Uninstall the CDH script and share it with you ~ #! /Bin/bashFor u in cloudera-scm flume hadoop hdfs hbase hive httpfs hue impala llama mapred oozie solr spark sqoop sqoop2 yarn zookeeper; doPid = 'ps-u hdfs-o pid ='Sudo kill-9 $ pidDoneSudo rm-Rf/usr/share/cmf/var/lib/cloudera */var/cache/yum/cloudera */var/log/cloudera */

First of all, of course, is to download a spark source code, in the http://archive.cloudera.com/cdh5/cdh/5/to find their own source code, compiled their own packaging, about how to compile packaging can refer to my original written article: http://blog.csdn.net/xiao_jun_0820/article/details/44178169 After execution you should be able to get a compressed package similar to SPARK-1.6.0-CDH5.7.1-BIN-CUSTOM-SPARK.TGZ (the version differs depending on the

Original article: Http://drbacchus.com/whats-new-in-openstack-juno/ Http://blog.russellbryant.net/2014/07/07/juno-preview-for-openstack-compute-nova/ Http://blog.flaper87.com/post/juno-preview-glance-marconi/ Https://etherpad.openstack.org/p/MetadataRepository-ArtifactRepositoryAPI Http://git.openstack.org/cgit/openstack/nova-specs/tree/specs/juno/approved Http://redhatstackblog.redhat.com/2014/08/05/juno-updates-security/ Http:

Label:MySQL: @variable vs. variable. Whats the difference? Up vote351down votefavorite 121 In another question I posted someone told me, there is a difference between:@variableAnd:variableIn MySQL. He also mentioned how MSSQL have batch scope and MySQL has session scope. Can someone elaborate on this for me? Add a Comment Up vote445down voteaccepted MySQLHas the concept of u

Tags: man manual enter row tar.gz err 1.4 for maximumHue: Https://github.com/cloudera/hue Hue Study document address : http://archive.cloudera.com/cdh5/cdh/5/hue-3.7.0-cdh5.3.6/manual.html I'm currently using hue-3.7.0-cdh5.3.6. Hue (Hue=hadoop User Experience) Hue is an open-source Apache Hadoop UI system that evolved from Cloudera desktop and finally cloudera the company's contribution to the Apache Foundation's Hadoop community, which is based on t

Recently, a Hadoop cluster was installed, so the HA,CDH4 that configured HDFS supported the quorum-based storage and shared storage using NFS two HA scenarios, while CDH5 only supported the first scenario, the Qjm ha scenario. About the installation deployment process for Hadoop clusters You can refer to the process of installing CDH Hadoop clusters using Yum or manually installing Hadoop clusters. Cluster Planning I have installed a total of three no

Three cluster nodes 192.168.1.170 CDH-Master Cdh-slave-1 192.168.1.171 Cdh-slave-2 192.168.1.171 1. Install centos6.5 (64-bit) and set up the basic environment, including: (1) Add sudo Permissions (2) modify the host name, gateway, static IP address, and DNS (3) Disable SELinux and Firewall Refer to the article (4) modify the system time zone and configure the NT

or download the Word document: http://download.csdn.net/download/xfg0218/9747346 about CDH and Cloudera Manager CDH (Cloudera's distribution, including Apache Hadoop), is one of the many branches of Hadoop, built from Cloudera maintenance, based on the stable version of Apache Hadoop, and integrates many patches, Can be used directly in production environments. Cloudera Manager simplifies the installatio

A brief introduction to CDHEveryone often says CDH, whose full name is: Cloudera's distribution including Apache Hadoop, simply Cloudera's Hadoop platform, is encapsulated and reinforced on the basis of Apache native Hadoop components. What is there in CDH? Such as:So how does this CDH software install? Cloudera Company provides a set of software to install

Cloudera Manager and CDH 5.14.0 Installation Process in CentOS 7 As we all know, the configuration of Apache Hadoop is cumbersome and fragmented. For this reason, Cloudera provides the Clouder Manager tool and encapsulates Apache Hadoop, flume, spark, hive, hbase and other big data products form CDH products with their own characteristics, and then use CM for installation. This facilitates cluster construct

Encounter a problem, because the default is to install CDH System/var/log directory, because it is a virtual instance, the system disk smaller only 50G, is the use of the system cm will be alerted to the alarm log directory space is not enough, if the script is deleted periodically, although it can solve the current problem, but not a good way. The other is to directly modify the configuration file, all the/var/log/* manually changed to/home/var/log/*

: Master node ssh other node ...; If not successful, then the other nodes in the other node to do their own password-free login: On the node to use the command ssh-keygen-t dsa-p "-F ~/.SSH/ID_DSAAnd then repeat the above operation　3. Turn off the firewallTemporary shutdown:Service Iptables StopPermanently closed (after reboot):Chkconfig iptables off　4. Turn off SELINUXTemporary shutdown:Setenforce 0Modify configuration file/etc/selinux/config (restart effective):Change Selinux=enforcing to Seli

Original address: Http://blog.selfup.cn/1631.html?utm_source=tuicoolutm_medium=referral Spit Groove Recently "idle" to have nothing to do, through the CM to vcores use situation to look at a glance, found that no matter how many tasks in the cluster running, the allocated vcores will never exceed 120. The available vcores for the cluster are 360 (15 machines x24 virtual cores). That's equivalent to 1/3 of CPU resources, and as a semi-obsessive-compulsive disorder, this is something that can nev

* /public void init (jobconf conf) throws IOException { setconf (conf); cluster = new cluster (conf); Clientugi = Usergroupinformation.getcurrentuser (); } This is still the jobclient of the MR1 era, in/usr/lib/hadoop-mapreduce/hadoop-mapreduce-client-core-2.0.0-cdh4.5.0.jar And/usr/lib/hadoop-0.20-mapreduce/hadoop-core-2.0.0-mr1-cdh4.5.0.jar have a jobclient, the former is the YARN age After checking the CLASSPATH to run the Job, fix the CLASSPATH, modify the file /usr/lib

1> removing the UUID of the agent node# rm-rf/opt/cm-5.4.7/lib/cloudera-scm-agent/*2> emptying the master node cm databaseGo to the MySQL database of the master node, and then drop db cm;3> Removing Agent node Namenode and Datanode node information# rm-rf/opt/dfs/nn/*# rm-rf/opt/dfs/dn/*4> re-initializing the CM database on the primary node#/opt/cm-5.4.7/share/cmf/schema/scm_prepare_database.sh MySQL cm-hlocalhost-uroot-p123456--scm-host localhost SCM SCM SCM5> Execute startup scriptMaster node:

1. What is CDHHadoop is an open source project for Apache, so many companies are commercializing this foundation, and Cloudera has made a corresponding change to Hadoop. Cloudera Company's release version of Hadoop, we call this version CDH (Cloudera distribution Hadoop).Provides the core capabilities of Hadoop– Scalable Storage– Distributed ComputingWeb-based user interfaceAdvantages of CDH:? Clear Version

Use yum source to install the CDH Hadoop Cluster This document mainly records the process of using yum to install the CDH Hadoop cluster, including HDFS, Yarn, Hive, and HBase.This article uses the CDH5.4 version for installation, so the process below is for the CDH5.4 version.0. Environment Description System Environment: Operating System: CentOS 6.6 Hadoop version:CDH5.4 JDK version:1.7.0_71 Run User

-source solution. In Hadoop, JobTracker generally does not have to solve the error tolerance of JobTracker because the failure probability of JobTracker is much lower than that of NameNode. In the latest version 4.2.0, Cloudera provides a complete set of JobTracker HA solutions. This article will introduce this solution. Before introducing the CDH solution, briefly introduce the basic workflow of JobTracker HA, which can be summarized as follows: (1)

Use Windows Azure VM to install and configure CDH to build a Hadoop Cluster This document describes how to use Windows Azure virtual machines and NETWORKS to install CDH (Cloudera Distribution Including Apache Hadoop) to build a Hadoop cluster. The project uses CDH (Cloudera Distribution Including Apache Hadoop) in the private cloud to build a Hadoop cluster for