DBMS > Elasticsearch vs. JanusGraph vs. Oracle Coherence
System Properties Comparison Elasticsearch vs. JanusGraph vs. Oracle Coherence
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|Editorial information provided by DB-Engines|
|Name||Elasticsearch Xexclude from comparison||JanusGraph successor of Titan Xexclude from comparison||Oracle Coherence Xexclude from comparison|
|Description||A distributed, RESTful modern search and analytics engine based on Apache Lucene Elasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metric||A Graph DBMS optimized for distributed clusters It was forked from the latest code base of Titan in January 2017||Oracles in-memory data grid solution|
|Primary database model||Search engine||Graph DBMS||Key-value store|
|Secondary database models||Document store|
|Developer||Elastic||Linux Foundation; originally developed as Titan by Aurelius||Oracle|
|Current release||8.6, January 2023||0.6.3, February 2023||12c, September 2016|
|License Commercial or Open Source||Open Source Elastic License||Open Source Apache 2.0||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||All OS with a Java VM||Linux|
|All OS with a Java VM|
|Data scheme||schema-free Flexible type definitions. Once a type is defined, it is persistent||yes||schema-free|
|Typing predefined data types such as float or date||yes||yes||yes|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||no||no||no|
|Secondary indexes||yes All search fields are automatically indexed||yes||no|
|SQL Support of SQL||SQL-like query language||no||no|
|APIs and other access methods||Java API|
RESTful HTTP/JSON API
RESTful HTTP API
|Supported programming languages||.Net|
Community Contributed Clients
|Server-side scripts Stored procedures||yes||yes||no|
|Triggers||yes by using the 'percolation' feature||yes||yes Live Events|
|Partitioning methods Methods for storing different data on different nodes||Sharding||yes depending on the used storage backend (e.g. Cassandra, HBase, BerkeleyDB)||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||yes||yes||yes, with selectable consistency level|
|MapReduce Offers an API for user-defined Map/Reduce methods||ES-Hadoop Connector||yes via Faunus, a graph analytics engine||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency Synchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, all||Eventual Consistency|
|Foreign keys Referential integrity||no||yes Relationships in graphs||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID||configurable|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes Supports various storage backends: Cassandra, HBase, Berkeley DB, Akiban, Hazelcast||yes optionally|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||Memcached and Redis integration||yes|
|User concepts Access control||User authentification and security via Rexster Graph Server||authentification to access the cache via certificates or http basic authentication|
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|Elasticsearch||JanusGraph successor of Titan||Oracle Coherence|
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