nosql数据库比较

Katana DB

Cassandra

MongoDB

CouchDB

HBase

Voldemort

Redis

Tokyo /Kyoto Cabinet

Riak

RavenDB

CitrusLeaf

BigData

License 许可

TDB

Apache 2.0

AGPLv3

Apache 2.0

Apache 2.0

Apache 2.0

BSD

GPLv3

Apache 2.0

AGPLv3

Proprietary

GPLv2

Price 价格

TDB

Free

Free, Commercial

Free

Free

Free

Free

Free or $12K

Free

Free or $1k/dev/yr

Per TB per month per DataCenter

Free, Commercial

Support 技术支持

TDB

Riptano, others, Community

10gen, Community

CouchBase, Cloudant, Community

Cloudera, Community

Community, LinkedIn*

Community, VMWare*

Community, FallLabs

Community, Basho Tech, Akamai*

Hibernating Rhinos, Community

CitrusLeaf

Community, 3rd Parties

Data model 数据模型

Key-value with sub-keys 键值

Columnar + Indexes 列+索引

Documents + Indices (JSON), Cappable 文档模型+索引

Documents + Indices, Views 文档模型+索引+视图

Columnar, ?Indexing?

Key-value, no sub keys 键值

Key-value, support for sets, lists, hash maps 键值，支持列表，有序列表，哈希

Key-value, DBM successor (like BDB) 键值

Key-value, Dyanmo-based 键值，基于Dyanmo

Documents + Indices (JSON), Views 文档模型+索引+视图

Key-value 键值

Graph

Partitioning 分区方式

Static Hash in R1, Split nodes evenly

Dynamic Hash, Split busiest node 动态哈希

Sorted Shards with UDSpec, Chunks (200MB) move around

Not supported 不支持

Sorted Regions/Shards, automatic Region splits when reaches size X

Consistent Hash, migratable partitions planned

Not supported, although some clients implement consistent hashing 不支持

Not supported

Consistent Hash, Shards

UD Key range Shards with round robin

Clustering

Language APIs API支持

Java

Multiple, Thrift, RPC

C, C#, JavaScript, Python, PHP, Ruby, Java, C++, Perl, many 3rd party

REST/JSON, many 3rd party

Java, REST, Thrift

Java, Python, C++

Telnet style, C, C++, C#, Java, Perl, PHP, Python, R, Ruby, Scala, others

C++, C, Java, Python, Ruby, Perl, and Lua

MapReduce, Python, JavaScript, Erlang, Java, PHP, Ruby

C#, HTTP

C, C#, Java, Python, Ruby, PHP

Replication 复制

Single Master with configurable durability

Multi-Master with vector clocks

Single Master, configurable durability with early visibility

Bi-directional, delayed or synchronous with conflict resolution and partial replicas

Single Master, delayed WAL log replay

Multi-Master, Read/Write anywhere with data repair

Single Master, writable Slaves, durability is “all”?

Not supported

Multi-Master, Read/Write anywhere with data repair and vector clocks

Multi-Master, R/W anywhere with conflict resolution

Topology Options

None in R1

Rack Aware & Unaware, DC Aware

Data Center priority

Data Center aware

None

None

Hinted Handoff

None

Storage 存储

Log-based FS, configurable durability

Log-based FS

Lazy writes to FS, HA for durability

ACID, append-only

Hadoop FS, durable via replication

BDB JE or MySQL

In-memory, w/ Snapshots or Append-only log

Page-based files with WAL and shadow paging

Pluggable storage layer including InnoDB

Transactions

Yes, Autocommit, Major Key + Sub keys

Yes, single record including Super-columns

Yes, autocommit

Document-centric , lockless with client conflict resolution

Record & Multi-record locking transactions (new)

Autocommit operations

None

Yes, single and multiple operations

Autocommit operations, pre & posrt commit hooks

Autocommit & multi-operation

Consistency 一致性

Transactional, Configurable

Eventual, with read repair option

Eventual, with delay if master fails

Distributed edits with conflict resolution

Read-committed transaction isolation

Eventual with client-centric conflict resolution

?

Serializable and Read Committed.

Eventual with client-centric conflict resolution

Eventual with client-centric conflict resolution

Immediate

Admin

Web Console, API, CLI

Ganglia, JConsole, CLI

Multiple UIs, Ganglia, REST, HTTP, Java Script

Futon Web Admin tool

?

Java API, CLI

CLI

CLI and utilities

CLI and utilities

CLI and utilities

Backup 备份

Single or multi-node

All Nodes for consistency

Quiescent, Write Lock or Snapshot

File copy?

Import/export

BDB JE/MySQL backup?

Replication or copy file Snapshots

File copy

Per node or all nodes

Snapshot backups

其中*符号表示 该软件受到团体的支持(corporate support)，这里的团体是指 该数据库的最主要用户和开发基金会，但是并不提供服务支持

	Tokyo /Kyoto Cabinet	Riak	RavenDB	CitrusLeaf	BigData
License 许可	GPLv3	Apache 2.0	AGPLv3	Proprietary	GPLv2
Price 价格	Free or $12K	Free	Free or $1k/dev/yr	Per TB per month per DataCenter	Free, Commercial
Support 技术支持	Community, FallLabs	Community, Basho Tech, Akamai*	Hibernating Rhinos, Community	CitrusLeaf	Community, 3rd Parties
Data model 数据模型	Key-value, DBM successor (like BDB) 键值	Key-value, Dyanmo-based 键值，基于Dyanmo	Documents + Indices (JSON), Views 文档模型+索引+视图	Key-value 键值	Graph
Partitioning 分区方式	Not supported	Consistent Hash, Shards	UD Key range Shards with round robin	Clustering
Language APIs API支持	C++, C, Java, Python, Ruby, Perl, and Lua	MapReduce, Python, JavaScript, Erlang, Java, PHP, Ruby	C#, HTTP	C, C#, Java, Python, Ruby, PHP
Replication 复制	Not supported	Multi-Master, Read/Write anywhere with data repair and vector clocks	Multi-Master, R/W anywhere with conflict resolution
Topology Options	None	Hinted Handoff	None
Storage 存储	Page-based files with WAL and shadow paging	Pluggable storage layer including InnoDB
Transactions	Yes, single and multiple operations	Autocommit operations, pre & posrt commit hooks	Autocommit & multi-operation
Consistency 一致性	Serializable and Read Committed.	Eventual with client-centric conflict resolution	Eventual with client-centric conflict resolution	Immediate
Admin	CLI and utilities	CLI and utilities	CLI and utilities
Backup 备份	File copy	Per node or all nodes	Snapshot backups

其中*符号表示 该软件受到团体的支持(corporate support)，这里的团体是指 该数据库的最主要用户和开发基金会，但是并不提供服务支持