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Couchbase vs. LMDB

Couchbase LMDB + Add column
Category
Preference (56% global votes) (63% global votes)
Website www.​couchbase.​com symas.​com/​mdb
License
Design
Database model
Data storage
Embeddable Yes Yes
Features
Query language
Data types
Conditional entry updates Yes No
Map and reduce Yes No
Unicode Yes No
TTL for entries Yes No
Compression Yes No
Integrity
Integrity model
Atomicity No Yes
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes Yes
Referential integrity No No
Revision control No No
Locking model
Indexing
Secondary Indexes Yes No
Composite keys Yes No
Full text search Yes No
Geospatial Indexes Yes No
Graph support No No
Distribution
Horizontal scalable Yes No
Replication Yes No
Replication mode ?
Sharding Yes No
Shared nothing architecture Yes ?
Restrictions
Value size max. 20 MB 4 GB
System requirements
Operating system
Native driver
Memory minimum 4 GB 64 kB
Architecture
Programming language
More
Description High performance key-value/document store with very flexible,Fast Global Secondary Indexes RAM Memory-Mapped, Copy-on-Write
Brand
Multi-user system Yes Yes
Extension/Plug-in Yes ?
Database
Multilingual content Yes ?
Price rating ★★★★☆ ★★★★★
WYSIWYG-Editor Yes ?
Standard compliance Yes ?
Software distribution
Object-Relational Mapping (ORM) Yes ?
Release Date February 2011 September 2011
Documentation level ★★★★☆ ★★★★★
RESTful Yes ?
Distributed Counter Yes ?
Free to use Yes Yes
Active Yes Yes
Database Connection Pooling Yes ?
Real time analytics Yes Yes
Community Driven Good Good
WSDL No ?
Web interface Yes ?
Data encryption Yes ?
API Good Basic
Cloud platform support ?
Online backup Yes Yes
Function Based Index Yes No
Key length max 250 ?
Log Yes ?
Implementation flexibility (63% global votes) (100% global votes)
Download www.​couchbase.​com/​download gitorious.​org/​mdb
Backup functionality Good Good
Query Cache Yes No
Ease of use ★★★★★ ★★★★☆
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Tuneable write concerns No ?
Read preferences No No
Open Source Yes Yes
Op/s 159 997 ?
Triggers No ?
Perfomance ★★★★☆ ★★★★★
Cross Domain Testing Yes ?
Materialized Views Yes ?
Spring Data Support Yes ?
Geospatial Yes ?
Server Side Java Script Yes ?
JSON Yes Yes
Flexible Table(Schema) Yes ?
Geo-distributed Yes ?
Ajax Yes ?
Max rows in query result 100 000 ?
ORM Join Support Yes ?
Re-Reduce Yes ?
Clustering over WAN Yes ?
Fully Distributed Yes ?
Stored Procedure No ?
Concurrency Yes ?
Auto-Sharding Yes ?
Contributors 4 ?
Near cache Yes ?
HTTP Session replication Yes ?
In business since 2009 ?
24/7 support Yes ?
Free edition Yes ?
Kafka Integration Yes ?
SQL Queries Yes ?
Multi-statement Transactions Yes ?
memcached protocol Yes ?
Monitoring UI Yes ?
CLI` Yes ?
Point In Time Recovery No ?
Does your boss understand it? Yes ?
Lines of code ? 7 k
Creation Date ? 2009
Maximum size ? 9.2 EB
Batch Loading ? Yes
Corruption Resistant ? Yes
Does your mom understand it ? No
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Couchbase LMDB
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