Know your data better！Datavines is Next-gen Data Observability Platform, support metadata manage and data quality.

Mirror of Apache Sentry

Janino is a super-small, super-fast Java™ compiler.

Follow a stream (like a log file) from a server in the browser.

Java library for efficiently working with heap and off-heap memory

Open Source, Distributed, RESTful Search Engine

Scalable, fault-tolerant application-layer sharding for Node.js applications

A streaming / online query processing / analytics engine based on Apache Storm

Basic demo of Google Guava 10.0.1 -- nothing fancy, just some simple classes and tests to demonstrate what it can do.

Stream summarizer and cardinality estimator.

Mirror of Apache Tajo

lucene源代码阅读以及注释

以前的一些特征选择、分类、聚类、关联挖掘和分词的算法

平时的一些Java例子demo和一些开源软件的测试demo

hive 0.12的源码阅读以及注释