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kdb+ vs. Riak

kdb+ Riak + Add column
Preference (67% global votes) (43% global votes)
Website kx.​com docs.​basho.​com
Database model
Data storage
Embeddable Yes No
Query language
Data types ?
Conditional entry updates Yes No
Map and reduce Yes Yes
Unicode Yes Yes
TTL for entries Conditional Yes
Compression Yes Yes
Integrity model ?
Atomicity Yes No
Consistency Yes Yes
Isolation Yes Yes
Durability (data storage) Yes Yes
Transactions Yes No
Referential integrity Yes No
Revision control Yes Yes
Locking model No
Secondary Indexes Yes Yes
Composite keys Yes Yes
Full text search Yes Yes
Geospatial Indexes Yes No
Graph support ? No
Horizontal scalable Yes Yes
Replication Yes Yes
Replication mode
Sharding Yes ?
Shared nothing architecture Yes Yes
Value size max. 10 TB 64 MB
System requirements
Operating system
Native driver
Memory minimum 100 kB 4 GB
Programming language
Description In memory, high performance columnar High performance key-value/document store.
Multi-user system Yes Yes
Extension/Plug-in Yes ?
Price rating ★★★★★ ?
Standard compliance Yes No
Software distribution
Object-Relational Mapping (ORM) Yes ?
Release Date 1993 17ᵗʰ August 2009
Documentation level ★★★★☆ ★★★★★
RESTful Yes Yes
Distributed Counter Yes Yes
Free to use Conditional Yes
Active Yes Yes
Database Connection Pooling Yes Yes
Real time analytics Yes Yes
Creation Date 1993 17ᵗʰ November 2009
Community Driven Good Good
Web interface Yes No
Widgets Dashboard Good ?
API Good Good
Color ?
Cloud platform support
Online backup Yes Yes
Function Based Index Yes ?
Geographic Replication Yes ?
Log Yes Yes
Implementation flexibility (100% global votes) (67% global votes)
Download https:/​/​kx.​com/​software-download.​php basho.​com/​resources/​downloads/​
Level of access authorization ?
Backup functionality Good Good
Query Cache Yes Yes
Ease of use ★★★★☆ ★★★★★
In-Place Update Yes Yes
Free for commercial use Yes Yes
Sorts Yes Yes
Capped Collections Yes ?
Tuneable write concerns Yes Yes
Read preferences Yes Yes
Event Driven Architecture Yes ?
Open Source No Yes
Op/s 100 000 ?
XInclude Support No ?
XQuery Support No ?
Maven support Yes ?
Global Assembly Cache Yes ?
Triggers Yes ?
Perfomance ★★★★★ ★★★★★
Cloud-enabled Yes ?
Licenses model ?
Pipeline Aggregation Yes ?
Spring Data Support Yes ?
Predictive Analytics Yes ?
Geospatial Yes ?
Text Analytics Yes ?
Server Side Java Script Yes ?
JSON Yes Yes
Flexible Table(Schema) No Yes
Geo-distributed Yes Yes
Batch Loading Yes ?
Administrator responsive? Yes ?
Re-Reduce Yes Yes
Clustering over WAN Yes ?
Fully Distributed Yes ?
Stored Procedure Yes ?
Second Level Caching Yes ?
Concurrency Yes ?
Auto-Sharding Yes ?
Native Adsense Integration No ?
Delta read Yes ?
Delta Update Yes ?
Aggregators Yes ?
Near cache Yes ?
Continuous query Yes ?
HTTP Session replication Yes ?
LDAP Integration Yes ?
In business since 1993 ?
Number of systems in production 80 000 ?
24/7 support Yes ?
Free edition Yes Yes
Distributed code Deployment Yes ?
Dynamic code deployment Yes ?
DB Delta Server Yes ?
Rolling Upgrade Yes ?
Dynamic index Yes ?
Data Grid interceptors Yes ?
Replication interceptors Yes ?
Kafka Integration No ?
Drools Integration No ?
Storm Integration No ?
Offheap Memory Yes ?
In-Memory File System Yes ?
CEP Streaming Yes ?
SQL Queries Yes ?
memcached protocol Yes ?
Does your mom understand it No ?
Monitoring UI Yes Yes
CLI` Yes ?
Web Page Caching Yes ?
Web Page Fragment Caching Yes ?
Abstracts complexity of UI Components Yes ?
Hadoop Integration Yes ?
Apache Spark Integration Yes ?
Lines of code ? 4.5 k
Siblings ? Yes
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kdb+ Riak
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