Apache Accumulo 1.6.4 发布，这是一个最新的1.6.x系列的修复版本，修复了数据丢失的bug，推荐用户更新。
部分 bug 修复：
ACCUMULO-3979 Fixed an issue where the BulkImporter failed with an error message "QUERY_METADATA already started".
ACCUMULO-3965 The listscans shell command did not contain the scanId attribute for currently running scans.
ACCUMULO-3946 Verified that all user-facing operations contained appropriate audit messages.
ACCUMULO-3977 Isolated scans with Iterators in use incorrectly fail around invocation of deepCopy.
ACCUMULO-3905 RowDeletingIterator functions incorrectly when columns are provided by the client. This restores intended functionality without the need for a workaround.
ACCUMULO-3959 ACCUMULO-3934 Multiple documentation improvements to BatchScanner.
下载地址：http://accumulo.apache.org/downloads/
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。
软件详情：http://accumulo.apache.org/release_notes/1.6.4.html
来自:开源中国社区
