在Windows上安装Trac并集成SVN
在Windows上安装Trac并集成SVN，原文来自官方的Trac On Windows。Trac是一个wiki和Issue跟踪的项目管理系统，集成SVN能让变更管理和SVN配置管理更加使用。
关于Subversion的安装，可以参考Apache和Subversion集成安装与配置
使用Hibernate Shards来访问多个水平分区数据库
Hibernate Shards is a framework that is designed to encapsulate and minimize this complexity by adding support for horizontal partitioning to Hibernate Core.
即，Shards可以帮助程序透明地访问网络上多个水平划分数据库（分片）。下面主要介绍使用Hibernate Shards来访问多个水平分区数据库的配置。Shards的功能：
Hibernate Shards key features:
- Standard Hibernate programming model - Hibernate Shards allows you to continue using the Hibernate APIs you know and love: SessionFactory, Session, Criteria, Query. If you already know how to use Hibernate, you already know how to use Hibernate Shards.
- Flexible sharding strategies - Distribute data across your shards any way you want. Use one of the default strategies we provide or plug in your own application-specific logic.
- Support for virtual shards - Think your sharding strategy is never going to change? Think again. Adding new shards and redistributing your data is one of the toughest operational challenges you will face once you've deployed your shard-aware application. Hibernate Sharding supports virtual shards, a feature designed to simplify the process of resharding your data.
- Free/open source - Hibernate Shards is licensed under the LGPL (Lesser GNU Public License)