Candidate List

Name: Apache Kafka
Home: http://kafka.apache.org/
   Apache Kafka is publish-subscribe messaging rethought as a distributed commit log.

Name: Karaf
Home: http://karaf.apache.org/
   Apache Karaf is a small OSGi based runtime which provides a lightweight container onto which various components and applications can be deployed.

Name: Kibana
Home: http://www.elasticsearch.org/overview/kibana/
   visualize logs and time-stamped data. elasticsearch works seamlessly with kibana to let you see and interact with your data

Name: Apache Knox
Home: http://knox.apache.org/
   The Apache Knox Gateway is a REST API Gateway for interacting with Hadoop clusters.

Name: Kobalt
Home: https://github.com/cbeust/kobalt
   Kobalt is a universal build system

Name: Kotlin
Home: http://kotlin.jetbrains.org/
   Statically typed programming language that compiles to JVM byte codes and JavaScript

Name: Oracle NoSQL Database
Home: http://www.oracle.com/technetwork/products/nosqldb/overview/index.html
   The Oracle NoSQL Database is a distributed key-value database. It is designed to provide highly reliable, scalable and available data storage across a configurable set of systems that function as storage nodes.

Name: Apache Kylin
Home: http://kylin.apache.org/
   Apache Kylin is an open source Distributed Analytics Engine designed to provide SQL interface and multi-dimensional analysis (OLAP) on Hadoop supporting extremely large datasets, original contributed from eBay Inc.

Name: Lazybones
Home: https://github.com/pledbrook/lazybones
   Lazybones was born out of frustration that Ratpack does not and will not have a command line tool that will bootstrap a project

Name: Leiningen
Home: http://leiningen.org/
   Leiningen is the easiest way to use Clojure. With a focus on project automation and declarative configuration, it gets out of your way and lets you focus on your code.

Name: Liquibase
Home: http://www.liquibase.org/
   An open source library for tracking, managing and applying database changes

Name: Logstash
Home: http://www.elasticsearch.org/overview/logstash/
   manage events and logs. elasticsearch works seamlessly with logstash to collect, parse, index, and search logs

Name: Luke
Home: http://code.google.com/p/luke/
   Lucene GUI Tool

Name: Apache Mahout
Home: http://mahout.apache.org/
   Apache Mahout has implementations of a wide range of machine learning and data mining algorithms: clustering, classification, collaborative filtering and frequent pattern mining.

Name: Mail Catcher
Home: https://github.com/linux-china/mail-catcher
   Supply SMTP service to catch all sent emails during testing

Name: Marmotta
Home: http://marmotta.apache.org/
   Apache Marmotta is an Open Platform for Linked Data. The goal of Apache Marmotta is to provide an open implementation of a Linked Data Platform that can be used, extended and deployed easily by organizations who want to publish Linked Data or build custom applications on Linked Data.

Name: Mat
Home: http://www.eclipse.org/mat/
   The Eclipse Memory Analyzer is a fast and feature-rich Java heap analyzer that helps you find memory leaks and reduce memory consumption.

Name: Maven
Home: http://maven.apache.org
   Apache Maven is a software project management and comprehension tool

Name: MongoDB
Home: http://www.mongodb.org/
   MongoDB is an open-source document database, and the leading NoSQL database. Written in C++.

Name: MRQL
Home: http://mrql.incubator.apache.org/
   MRQL is a query processing and optimization system for large-scale, distributed data analysis, built on top of Apache Hadoop, Hama, and Spark.