Hypertable 0.9.7.9 added QFS Broker, improved monitoring of disk usage, added READONLY variables and HQL SET commands, fixed bugs, and some improvements in performance.
Hypertable is an open source, high-performance, scalable database that uses a model similar to Google's bigtable. Over the past few years, Google has built three key components for a scalable computing infrastructure designed to run on a PC cluster. The first critical infrastructure is Google http://www.aliyun.com/zixun/aggregation/19352.html ">file system (GFS), which is a highly available filesystem, Provides a global namespace. It achieves high availability by replicating file data across machines (and across racks), and is therefore exempt from many failures that traditional file storage systems cannot avoid, such as power, memory, and network ports. The second infrastructure, a computing framework called Map-reduce, works closely with GFS to help deal with the massive amounts of data collected. The third infrastructure is bigtable, which is an alternative to traditional databases. BigTable allows you to organize massive amounts of data through a number of primary keys and implement efficient queries. Hypertable is an open source implementation of BigTable and has made some improvements based on our ideas.