| Editorial information provided by DB-Tools |
| System |
| Name |
ElasticSearch |
CouchDB |
| Version |
Version 6.4.1 (released in September 2018)
|
3.3.5 |
| Drawbacks |
Elasticsearch AMI not available |
1 Does not have capabilities present in an RDF data store e.g does not support SparQL |
| Advantages |
Large number of drivers present for integration |
NA |
| Languages Supported |
.Net
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby |
.net, C#, Javascript |
| Website |
www.elastic.co/products/elasticsearch |
apache.couchdb.org |
| XML Support |
no |
NA |
| JSON Support |
yes |
yes |
| Brief description |
Elasticsearch is a search engine based on Lucene. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents. |
Open Source Transactional database with native graph storage and processing |
| Database Model |
Key Value NoSQL Model |
Property Graph |
| Technical Documentation |
www.elastic.co/guide/en/elasticsearch/reference/current/index.html |
docs.microsoft.com/en-us/azure/cosmos-db |
| License |
Open Source. Commercial version with HA available with redislabs.com |
Community license can be run on 1 node.Enterprise License supports multi-node cluster deployment |
| Cloud-based / SaaS |
ElasticSearch Cloud Cluster available from ElasticSearch |
Amazon AMI available, On Prem can be installed |
| Implementation Language |
C,C++ |
Java API |
| Operating System Supported |
Linux
OS X
Solaris
Windows
|
Linux , OS X, Windows |
| Options for Integration / Access API |
Proprietary protocol using JSON |
Rest API |
| Consistency |
Highly Consistent |
NA |
| Foreign Keys |
No |
No |
| Streaming Support |
Yes |
No |
| Analytics Support |
NA |
No |
| Data Storage Schema |
Inverted Index |
Key Value Store presented as Document DB |
| Notable Users |
-- |
-- |
| Key Differentiator |
No known Enterprise Competitor apart from Amazaon Cloud Search |
-- |
| Concurrency |
Yes |
-- |
| Partitioning |
Yes |
-- |
| Replication |
Yes |
-- |
| Secondary Indexes |
Yes |
-- |
| SchemaLess |
Yes |
-- |
| SQL Query |
No |
-- |
