HBase和Cassandra之间的区别

1. HBase：
该模型用于提供对大量结构化数据的随机访问。它建立在hadoop文件系统的顶部，本质上是面向列的。它曾用于将数据存储在HDFS中。它是提供数据复制的开源数据库。 HBase的三个重要组件是HMaster，区域服务器和Zookeeper。

2.卡桑德拉：
Cassandra旨在处理不同商品服务器上的大量数据，从而提供高可用性而不会发生任何故障。它具有能够处理大量数据的分布式体系结构。数据被放置在具有多个复制因子的不同机器上，以实现高可用性而不会发生任何故障。

HBase和Cassandra之间的区别：

HBase	Cassandra
HBase is based on Bigtable.	Cassandra is based on DynamoDB.
It is written in JAVA.	It is also written in JAVA.
It has distributed database.	It has decentralized database.
It has triggers.	It doesn’t have triggers.
It has no secondary indexes.	It has restricted secondary indexes.
Uses a selectable replication factor.	Uses a selectable replication factor.
HBase provide more consistency.	It provide less consistency.
HBase can handles upto 1000 nodes.	It can handles upto 400 nodes.
HBase provide better performance than cassandra.	It has less performance as compared to HBase.
HBase is less complex than Cassandra.	It is more complex than HBase.