来自 Apache 基金会的 K/V 存储方案 Accumulo 发布了最新的 1.5.0 版本，该版本包含巨量的改进和 bug 修复，详情请看http://svn.apache.org/repos/asf/accumulo/tags/1.5.0/CHANGES。其中新特性有：
** New Feature
* [ACCUMULO-19] - Debian packaging support
* [ACCUMULO-49] - optionally monitor swappiness on every server
* [ACCUMULO-196] - Add command and control features to the Monitor
* [ACCUMULO-254] - loggers could be monitored better
* [ACCUMULO-347] - some more features should be added to screen
* [ACCUMULO-404] - Support running on-top of Kerberos-enabled HDFS
* [ACCUMULO-420] - Allow per compaction iterator settings
* [ACCUMULO-456] - Need utility for exporting and importing tables
* [ACCUMULO-482] - Add a thrift proxy server
* [ACCUMULO-705] - Batch Scanner needs timeout
* [ACCUMULO-706] - Batch Writer needs timeout
* [ACCUMULO-732] - Shell needs hex formatter
* [ACCUMULO-735] - Add hooks to shell for transforming scan range
* [ACCUMULO-739] - Please add dot (.) as a valid character in column visibility tokens
* [ACCUMULO-791] - Better scripts for start-up (debian)
* [ACCUMULO-792] - Better scripts for start-up (RHEL)
* [ACCUMULO-875] - add list compactions command to shell
* [ACCUMULO-967] - Add addAuths command to shell
* [ACCUMULO-990] - Need command to cancel compact table operation
Apache Accumulo 是一个可靠的、可伸缩的、高性能的排序分布式的 Key-Value 存储解决方案，基于单元访问控制以及可定制的服务器端处理。使用 Google BigTable 设计思路，基于 Apache Hadoop、Zookeeper 和 Thrift 构建。
项目主页：http://accumulo.apache.org/
下载地址：http://accumulo.apache.org/downloads/
来自:开源中国社区
