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Apache Hadoop vs. LevelDB

Apache Hadoop LevelDB + Add column
Description Huge Data Management key/value database
Multi-user system Yes Yes
Memory minimum 10 EB ?
Operating system
Programming language
Database ?
Website hadoop.​apache.​org www.​oracle.​com/​database/​b…b/​index.​html
Database model
Query language
Transactions No Yes
Unicode Yes Yes
Referential integrity No No
Price rating ★★★★☆ ?
Standard compliance No ?
Sharding Yes No
Replication Yes Yes
Map and reduce Yes No
Revision control Yes ?
Atomicity Yes Yes
Consistency Yes Yes
Isolation No Yes
Durability (data storage) Yes Yes
Horizontal scalable Yes Yes
Integrity model
Software distribution ?
Full text search No Yes
Preference (28% global votes) (42% global votes)
Release Date September 2007 ?
Documentation level ★★★★☆ ★★★★☆
TTL for entries Yes No
Value size max. 10 PB 4 GB
Conditional entry updates Yes Yes
Composite keys Yes Yes
Free to use Yes Yes
Active Yes Yes
Compression Yes Yes
Real time analytics No ?
WSDL Yes ?
Shared nothing architecture Yes ?
Web interface Yes ?
Secondary Indexes Yes Yes
Graph support Conditional No
Embeddable Yes Yes
Geospatial Indexes No No
Data storage
Replication mode
Native driver
Online backup Yes ?
Data types ?
Partial Index No ?
Function Based Index No ?
Log Yes Yes
Implementation flexibility (17% global votes) (0% global votes)
Download hadoop.​apache.​org/​releases.​html www.​oracle.​com/​technetwor…iteId=ocomen
Backup functionality Good ?
Query Cache Yes ?
Ease of use ★★★★☆ ?
In-Place Update No ?
Free for commercial use Yes No
Sorts Yes Yes
Capped Collections Yes ?
Tuneable write concerns Yes ?
Open Source Yes ?
Perfomance ★★★★☆ ?
JSON 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 ? 1 748 k
Distributed Counter ? Yes
Creation Date ? 1994
Community Driven ? Good
Corruption Resistant ? No
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Apache Hadoop LevelDB
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