cloudera competitors

ObjectiveTwo years of contact with Hadoop, during the period encountered a lot of problems, both classic Namenode and jobtracker memory overflow failure, also has HDFS storage small file problems, both task scheduling problems, There are also mapreduce performance issues. Some of these problems are the flaws of Hadoop itself (short board), and some are inappropriate to use.In the process of solving the problem, sometimes need to turn over the source code, sometimes to colleagues, netizens consul

subproject of Lucene called hadoop. Doug cutting joined yahoo at about the same time and agreed to organize a dedicated team to continue developing hadoop. In February of the same year, the Apache hadoop project was officially launched to support independent development of mapreduce and HDFS. In January 2008, hadoop became a top-level Apache project and ushered in its rapid development.2. Selection and introduction of hadoop Release versions 2.1introduction to hadoop Release versions At present

Tags: HTTP Io OS ar use the for strong SP File Due to the chaotic and changing versions of hadoop, the selection of hadoop versions has always worried many novice users. This article summarizes the evolution process of Apache hadoop and cloudera hadoop versions, and provides some suggestions for choosing the hadoop version. 1. Apache hadoop 1.1 Evolution of Apache So far (December 23, 2012), the Apache hadoop version is divided into two generations. W

/etc/spark/conf/log4j.properties log4j.properties Then copy the/etc/spark/conf directory below the classpath.txt,spark-defaults.conf,spark-env.sh three files to your own Spark conf directory, this example is/opt/spark/ Conf, the final/opt/spark/conf directory has 5 files: To edit the Classpath.txt file, locate the spark-related jar package inside, there should be two: /opt/cloudera/parcels/cdh-5.7.1-1.cdh5.7.1.p0.11/jars/spark-1.6.0-cdh5.7.1-yarn-shu

Applicable scenarios:1. Application servers in large clusters can only be accessed by intranet2. Want to maintain a stable local repository, to ensure uniform installation of member servers3. Avoid poor access to foreign yum sources or domestic source networksServer configuration: Create an application local Yum source configuration file to ensure network access to the public network source, taking CDH as an example [Email protected] ~]# Cat/etc/yum.repos.d/cdh.repo [

The difference between apache and cloudera is that apache released hadoop2.0.4aplha in April 25, 2013, which is still not applicable to the production environment. Cloudera released CDH4 Based on hadoop0.20 to achieve high namenode availability. The new MR framework MR2 (also known as YARN) also supports MR and MR2 switching. cloudera is not recommended for produ

RHEL6 to obtain the installation package (RPM) without InstallationRHEL6 to obtain the installation package (RPM) without Installation Sometimes we can only get the RPM installation package online on a machine. to install the RPM package on an intranet machine that cannot access the Internet, we need to download the installation package to the local machine without installation, then copy the packages to the Intranet machine for installation. Another method is to create an image server without t

Bigtop is a tool launched last year by the apache Foundation to pack, distribute, and test Hadoop and its surrounding ecosystems. The release is not long. In addition, the official documentation is very simple. It only tells you how to use bigtop to install hadoop. Bigtop is an interesting toy in my personal experience. It is of little practical value, especially for companies and individuals preparing to write articles on hadoop itself, it is a very beautiful thing to look at, but the actual de

Cdh5hadoopredhat local repository ConfigurationCdh5 hadoop redhat local repository Configuration Location of the cdh5 Website: Http://archive-primary.cloudera.com/cdh5/redhat/6/x86_64/cdh/ It is very easy to configure pointing to this repo On RHEL6, As long: Http://archive-primary.cloudera.com/cdh5/redhat/6/x86_64/cdh/cloudera-cdh5.repo Download and store it locally: /Etc/yum. repos. d/cloudera-cdh5.repo Bu

Because of the chaotic version of Hadoop, the issue of version selection for Hadoop has plagued many novice users. This article summarizes the version derivation process of Apache Hadoop and Cloudera Hadoop, and gives some suggestions for choosing the Hadoop version.1. Apache Hadoop1.1 Apache version derivationAs of today (December 23, 2012), the Apache Hadoop version is divided into two generations, we call the first generation Hadoop 1.0, and the se

Recently using vagrant to build a Hadoop cluster with 3 hosts, using Cloudera Manager to manage it, initially virtualized 4 hosts on my laptop, one of the most Cloudera manager servers, Several other running Cloudera Manager Agent, after the normal operation of the machine, found that the memory consumption is too strong, I intend to migrate two running Agent to

Cdh5 Hadoop Redhat Local warehouse configurationCDH5 site location on the site:http://archive-primary.cloudera.com/cdh5/redhat/6/x86_64/cdh/Configuring on RHEL6 to point to this repo is very simple, just put:Http://archive-primary.cloudera.com/cdh5/redhat/6/x86_64/cdh/cloudera-cdh5.repoTo download the store locally, you can:/etc/yum.repos.d/cloudera-cdh5.repoHowever, if the network connection is not availab

Source :? Github. comonefoursixCloudera-Impala-JDBC-Example see this article for lib dependencies required. Www.cloudera.comcontentcloudera-contentcloudera-docsImpalalatestInstalling-and-Using-Impalaciiu_impala_jdbc.html importjava. SQL. Conn Source :? See this article for the lib that the https://github.com/onefoursix/Cloudera-Impala-JDBC-Example needs to depend on. Http://www.cloudera.com/content/cloudera

To add a new host node to the CDH5 clusterStep one: First you have to install the JDK in the new host environment, turn off the firewall, modify SELinux, NTP clock synchronization with the host, modify the hosts, configure SSH password-free login with the host, ensure that Perl and Python are installed.Step two: Upload the Cloudera-manager file to the/OPT directory and modify the agent configuration file:Vi/opt/cm-5.0.0/etc/

1. Stop Monit on all Hadoop servers (we use Monit on line to monitor processes) Login Idc2-admin1 (we use idc2-admin1 as a management machine and Yum Repo server on line)# mkdir/root/cdh530_upgrade_from_500# cd/root/cdh530_upgrade_from_500# pssh-i-H idc2-hnn-rm-hive ' Service Monit stop '# pssh-i-H idc2-hmr.active ' Service Monit stop ' 2. Confirm that the local CDH5.3.0 yum repo server is ready http://idc2-admin1/repo/cdh/5.3.0/http://idc2-admin1/repo/cl