Apache Cassandra was initially built by Facebook for their own servers and services, using principles developed by Google and Amazon for BigTable and DynamoDB. Currently the project was donated to the Apache Foundation who continues to developed it...
Apache Derby is one of the first database engines the Apache Software foundation hosted under its umbrella before big names like Yahoo's Hadoop, Facebook's Cassandra, or IBM's CouchDB were also donated to it. Coded from the beginning to...
Apache Sqoop is a must-have tool for every database administrator, letting them easily move data between the Hadoop NoSQL database to more classic database systems like PostgreSQL, MSSQL, MariaDB, or MySQL - a.k.a. relational databases.Sqoop basically...
Apache OpenJPA comes in two separate branches, each production level material.The differences between the two are the standards they implement. The 1.x branch follows the JSR-220 Enterprise Java Beans 3.0 specificationm while the 2.x branch was modeled...
Apache MRUnit lets developers write unit tests that can be used in detecting problems with MapReduce jobs before their run on the database itself.By unit testing Hadoop's MapReduce jobs, developer can avoid useless resource consumption, a good habit to...
Apache CouchDB was initially developed at IBM and donated later on to the Apache Software Foundation.Compared to other databases around, CouchDB is still very young, but this has not stopped it from gathering quite a following in its short lifespan.The...
Apache HBase was modeled after Google's internal BigTable database system and was built atop the famous Apache Hadoop data processing framework and distributed computing engine. Because it was built on Hadoop, some of its cool features are also inherited...
Apache Drill was created to allow developers to query up to 10,000 servers and handle petabytes of query data within seconds. Drill is Apache's response to Google's Dremel package, providing an open source solution for running large data...
Apache JDO is a Java API that provides easy & well documented methods for storing, accessing and manipulating persistent data.This kind of data is stored using classic POJOs (simple Java objects) and will allow developers to store some of their...
Apache MetaModel supports most of the major database systems around and is focused on providing the be-all end-all interface for running database operations in Java.Using MetaModel reduces the learning curve needed when working with multi-database...
