DBMS > Amazon CloudSearch vs. Hawkular Metrics vs. JanusGraph
System Properties Comparison Amazon CloudSearch vs. Hawkular Metrics vs. JanusGraph
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|Editorial information provided by DB-Engines|
|Name||Amazon CloudSearch Xexclude from comparison||Hawkular Metrics Xexclude from comparison||JanusGraph successor of Titan Xexclude from comparison|
|Description||A hosted search engine service by Amazon with the data stored in Amazons cloud||Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.||A Graph DBMS optimized for distributed clusters It was forked from the latest code base of Titan in January 2017|
|Primary database model||Search engine||Time Series DBMS||Graph DBMS|
|Developer||Amazon||Community supported by Red Hat||Linux Foundation; originally developed as Titan by Aurelius|
|Current release||0.6.3, February 2023|
|License Commercial or Open Source||commercial||Open Source Apache 2.0||Open Source Apache 2.0|
|Cloud-based only Only available as a cloud service||yes||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||hosted||Linux|
|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|
|Secondary indexes||yes all search fields are automatically indexed||no||yes|
|SQL Support of SQL||no||no||no|
|APIs and other access methods||HTTP API||HTTP REST||Java API|
|Supported programming languages||Go|
|Server-side scripts Stored procedures||no||no||yes|
|Triggers||no||yes via Hawkular Alerting||yes|
|Partitioning methods Methods for storing different data on different nodes||yes automatic partitioning across Amazon Search Instance as required||Sharding based on Cassandra||yes depending on the used storage backend (e.g. Cassandra, HBase, BerkeleyDB)|
|Replication methods Methods for redundantly storing data on multiple nodes||yes managed transparently by AWS||selectable replication factor based on Cassandra||yes|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no||yes via Faunus, a graph analytics engine|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency based on Cassandra|
Immediate Consistency based on Cassandra
|Foreign keys Referential integrity||no||no||yes Relationships in graphs|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||no||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes Supports various storage backends: Cassandra, HBase, Berkeley DB, Akiban, Hazelcast|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no|
|User concepts Access control||authentication via encrypted signatures||no||User authentification and security via Rexster Graph Server|
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|Amazon CloudSearch||Hawkular Metrics||JanusGraph successor of Titan|
|DB-Engines blog posts|
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