Apache Cassandra V0.8.0-final publishes open source distributed Key-value Storage System

Apache Cassandra is an open source distributed database management system. It was originally developed by Facebook to store particularly large data.

Cassandra is a mixed relational database, similar to Google's bigtable. The main characteristic of Cassandra is that it is not a database, but a distributed network service composed of a bunch of database nodes, and a write operation to Cassandra will be replicated to other nodes, and the Cassandra read operation will also be routed to a node to read. For a Cassandra cluster, extended performance is a relatively simple thing to do, just add nodes to the cluster.

Cassandra's main functions are richer than Dynamo (distributed key-value storage systems), but support is inferior to document storage MongoDB (open source products between relational and non relational databases, the most functionally rich in relational databases, most like relational databases.) The supported data structure is very loose and is a JSON-like Bjson format, so you can store more complex data types. ）

Apache Cassandra v0.8.0-final Release Notes:

* Fix CQL Grammar warning and cqlsh regression from CASSANDRA-2622
* Add Ant generate-cql-html Target (CASSANDRA-2526)
* Update CQL consistency levels (CASSANDRA-2566)
* Debian Packaging Fixes (CASSANDRA-2481, 2647)
* Fix Uuidtype, integertype for direct buffers (CASSANDRA-2682, 2684)
* Switch to native Thrift for Hadoop map/reduce (CASSANDRA-2667)
* Fix stackoverflowerror when building from Eclipse (CASSANDRA-2687)
* Provide replication_factor to strategy_options ' help ' for
Simplestrategy, Oldnetworktopologystrategy (CASSANDRA-2678, 2713)
* Fix exception adding validators to Non-string columns (CASSANDRA-2696)
* Avoid instantiating databasedescriptor in JDBC (CASSANDRA-2694)
* Fix potential stack overflow during compaction (CASSANDRA-2626)
* Clone Super Columns to avoid modifying them during flush (CASSANDRA-2675)
* Reset underlying iterator in Echoedrow constructor (CASSANDRA-2653)

Download Address: http://www.apache.org/dyn/closer.cgi?path=/cassandra/0.8.0/apache-cassandra-0.8.0-bin.tar.gz