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Apache Hadoop vs. LMDB

Apache Hadoop LMDB + Add column
Description Huge Data Management Memory-Mapped, Copy-on-Write
Multi-user system Yes Yes
Memory minimum 10 EB 64 kB
Operating system
Programming language
Website hadoop.​apache.​org symas.​com/​mdb
Database model
Query language
Transactions No Yes
Unicode Yes No
Referential integrity No No
Price rating ★★★★☆ ★★★★★
Standard compliance No ?
Sharding Yes No
Replication Yes No
Map and reduce Yes No
Revision control Yes No
Atomicity Yes Yes
Consistency Yes Yes
Isolation No Yes
Durability (data storage) Yes Yes
Horizontal scalable Yes No
Integrity model
Software distribution
Full text search No No
Preference (28% global votes) (57% global votes)
Release Date September 2007 September 2011
Documentation level ★★★★☆ ★★★★★
TTL for entries Yes No
Value size max. 10 PB 4 GB
Conditional entry updates Yes No
Composite keys Yes No
Free to use Yes Yes
Active Yes Yes
Compression Yes No
Real time analytics No Yes
WSDL Yes ?
Shared nothing architecture Yes ?
Web interface Yes ?
Secondary Indexes Yes No
Graph support Conditional No
Embeddable Yes Yes
Geospatial Indexes No No
Data storage
Replication mode
Native driver
Online backup Yes Yes
Data types
Partial Index No ?
Function Based Index No No
Log Yes ?
Implementation flexibility (17% global votes) (50% global votes)
Download hadoop.​apache.​org/​releases.​html gitorious.​org/​mdb
Backup functionality Good Good
Query Cache Yes No
Ease of use ★★★★☆ ★★★★☆
In-Place Update No Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Capped Collections Yes ?
Tuneable write concerns Yes ?
Open Source Yes Yes
Perfomance ★★★★☆ ★★★★★
JSON Yes Yes
Geo-distributed No ?
Max rows in query result 9 999 999 999 ?
Stored Procedure Yes ?
24/7 support No ?
Free edition Yes ?
SQL Queries Yes ?
CLI` Yes ?
¿Es una Cagada? No ?
Hadoop Integration Yes ?
Apache Spark Integration Yes ?
Lines of code ? 7 k
Creation Date ? 2009
Community Driven ? Good
API ? Basic
Locking model ?
Read preferences ? No
Maximum size ? 9.2 EB
Batch Loading ? Yes
Corruption Resistant ? Yes
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Apache Hadoop LMDB
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