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In the previous article we introduced Hadoop as the most popular Big Data toolset on the market today. We had just started talking about MapReduce as the major framework that makes Hadoop distinctive. So let’s continue the discussion where we left off.
MapReduce is really the key to understanding Hadoop’s parallel processing functionality as it enables data in various formats (XML, text, binary, log, SQL, ect) to be divided up and mapped out to many computers nodes and then recombined back to produce a final data set.
Dolphin and Elephant: an Introduction
This post is intended for MySQL DBAs or Sysadmins who need to start using Apache Hadoop and want to integrate those 2 solutions. In this post I will cover some basic information about the Hadoop, focusing on Hive as well as MySQL and Hadoop/Hive integration.
First of all, if you were dealing with MySQL or any other relational database most of your professional life (like I was), Hadoop may look different. Very different. Apparently, Hadoop is the opposite to any relational database. Unlike the database where we have a set of tables and indexes, Hadoop works with a set of text files. And… there are no indexes at all. And yes, this may be shocking,[Read more...]
Red Hat’s $136m acquisition of open source storage vendor Gluster marks Red Hat’s biggest buy since JBoss and starts the fourth quarter with a very intersting deal. The acquisition is definitely good for Red Hat since it bolsters its Cloud Forms IaaS and OpenShift PaaS technology and strategy with storage, which is often the starting point for enterprise and service provider cloud computing deployments. The acquisition also gives Red Hat another weapon in its fight against VMware, Microsoft and others, including OpenStack, of which Gluster is a member (more on that further down). The deal is also good for Gluster given the sizeable price Red Hat is paying for the provider of open source, software-based, scale-out storage for unstructured data and also as validation of both open source and software in[Read more...]
Red Hat acquires Gluster. Adobe acquires PhoneGap. Oracle does Hadoop. And more.
# Adobe announced its agreement to acquire Nitobi, creator of PhoneGap.
# Oracle unveiled its Oracle Big Data Appliance, including Apache Hadoop and Oracle NoSQL database.
# ODF 1.2 has been approved as an OASIS standard.
# Univa[Read more...]
MapR and Funambol raise funding. VMware virtually supports PostgreSQL. And more.
# MapR raised $20m series B for its Hadoop distribution from Redpoint Ventures, Lightspeed Venture Partners and NEA.
# Funambol raised $3m in funding from previous investors HIG Ventures, Pacven Walden Ventures and Nexit Infocom.
# VMware launched vFabric Postgres as part of vFabric Data Director database-as-a-service launch.
# Citrix released a new edition of CloudStack, making the[Read more...]
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