Open Source @ LinkedIn

Azkaban
Azkaban is simple batch scheduler for constructing and running Hadoop jobs or other offline processes
Bobo
Bobo is a Faceted Search implementation written purely in Java, an extension of Apache Lucene
glu
glu is a deployment automation platform
gradle-plugins
A set of useful gradle plugins
Kafka
Kafka is a distributed publish/subscribe messaging system
Kamikaze
Kamikaze is a utility package for performing operations on compressed arrays of sorted integers
Krati
Krati is a simple persistent data store with very low latency and high throughput
linkedin-utils
Base utilities shared by all linkedin open source projects
linkedin-zookeeper
A set of utility classes and wrappers around ZooKeeper
Norbert
Norbert is a library that provides easy cluster management and workload distribution
Sensei
A distributed, elastic, realtime, searchable database
Voldemort
Voldemort is a distributed key-value storage system
Zoie
Zoie is a real-time search and indexing system built on Apache Lucene