Apache Kudu is a free and open source column-oriented data store of the Apache Hadoop ecosystem.
Apache Mahout is a software that build an environment for quickly creating scalable performant machine learning applications, it provides three major features: A simple and extensible programming environment and framework for building scalable algorithms, A wide variety of premade algorithms for Scala + Apache Spark, H2O, Apache Flink and Samsara, a vector math experimentation environment with R-like syntax which works at scale
Apache Avro is a data serialization system.
Accumulo sorted, distributed key/value store is a robust, scalable, high performance data storage and retrieval system.
Apache Ivy is a dependency manager solution that focuses on flexibility and simplicity
A component-oriented framework for creating highly scalable web applications in Java.
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