http://biglogictech.com/ : Hadoop & MongoDB Classes
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Hadoop and MongoDB
What is Hadoop? Hadoop is a software technology designed for storing and processing large volumes of data using a cluster of commodity servers and commodity storage. Hadoop is an open-source Apache project started in 2005 by engineers at Yahoo. It…
Intro to Spring Data
The spring-data project offer abstraction and unified data access for variety of data sources. Category Sub-project Relational Databases JPA Spring Data JPA – Simplifies the development of creating a JPA-based data access layer JDBC Extensions Support for Oracle RAC, Advanced Queuing,…
Uninstallation process of CDH (Cloudera Hadoop packages)
Here’are the uninstallation steps 1. Stop ALL services: a. service cloudera-scm-server stop b. service cloudera-scm-server-db stop c. service cloudera-scm-agent hard_stop 2. Uninstall the CDH and Cloudera Manager packages: [srinivas@dbversity.com ~]# hadoop version Hadoop 2.0.0-cdh4.5.0 Subversion file:///var/lib/jenkins/workspace/CDH4.5.0-Packaging-Hadoop/build/cdh4/hadoop/2.0.0-cdh4.5.0/source/hadoop-common-project/hadoop-common -r 30821ec616ee7a21ee8447949b7c6208a8f1e7d8 Compiled by…
Learning HBase
Learning HBase – A nice book from my friend that I can refer to you. Shashwat Shriparv November 2014 Learn the fundamentals of HBase administration and development with the help of real-time scenarios About This Book Learn how HBase works…
Failed to create a table in Hive backed by HBase ?
Failed to create a table in Hive backed by HBase. Will it fix the error to copy hbase-site.xml into /etc/hive/conf/ ? Often when you use Impala with Hbase and first you need create metastore from Hive. $ hive –auxpath /opt/cloudera/parcels/CDH-4.5.0-1.cdh4.5.0.p251.30/lib/hive/lib/zookeeper.jar,/opt/cloudera/parcels/CDH-4.5.0-1.cdh4.5.0.p251.30/lib/hive/lib/hbase.jar,/opt/cloudera/parcels/CDH-4.5.0-1.cdh4.5.0.p251.30/lib/hive/lib/hive-hbase-handler-0.10.0-cdh4.5.0.jar,/opt/cloudera/parcels/CDH-4.5.0-1.cdh4.5.0.p251.30/lib/hive/lib/guava-11.0.2.jar…