Aerospike和其他NoSQL产品的相比最大的特点是Aerospike可以在大规模的数据下,比如PB级也能取得几毫秒甚至更低的的延迟和高吞吐量。
其他的产品很难同时做到这两方面,比如Redis的产品特点是它的速度,它的扩展性比较差,当扩展到几TB时,就会遇到扩展性的瓶颈。而Cassandra是针对大规模数据的存储,他的响应速度相对比较慢,这是由于它的产品在事务处理的构架和数据存储结构的缺陷所造成的。
Aerospike的另一个特点是它的总拥有成本是随着数据的规模线性增长的,而其他的产品总拥有成本往往是非线性增长的,随着数据的增长而急剧增长,就像下图那样。
构架特点
Aerospike改变了传统的缓存层加生产数据库的二层式构架,在传统的生产系统中,因为速度的要求,往往都会在生产数据库上加一层缓存层,但这使得系统的构架变得非常复杂,尤其在很多数据更新的时候,保持缓存层和生产数据库的同步就变成了较大的挑战。
Aerospike是高性能并可持久的,它可以代替缓存层和生产数据库,而把这两个部分的功能同时实现出来。这样,它就可以在处理高性能读取的同时也可以处理大量数据的更新,并实现事务的强一致性。
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