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DBMS > EventStoreDB vs. LevelDB vs. RRDtool vs. searchxml vs. ToroDB

System Properties Comparison EventStoreDB vs. LevelDB vs. RRDtool vs. searchxml vs. ToroDB

Editorial information provided by DB-Engines
NameEventStoreDB  Xexclude from comparisonLevelDB  Xexclude from comparisonRRDtool  Xexclude from comparisonsearchxml  Xexclude from comparisonToroDB  Xexclude from comparison
ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionIndustrial-strength, open-source database solution built from the ground up for event sourcing.Embeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesIndustry standard data logging and graphing tool for time series data. RRD is an acronym for round-robin database. infoThe data is stored in a circular buffer, thus the system storage footprint remains constant over time.DBMS for structured and unstructured content wrapped with an application serverA MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database modelEvent StoreKey-value storeTime Series DBMSNative XML DBMS
Search engine
Document store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.19
Rank#173  Overall
#1  Event Stores
Score2.25
Rank#115  Overall
#19  Key-value stores
Score1.90
Rank#132  Overall
#11  Time Series DBMS
Score0.03
Rank#390  Overall
#7  Native XML DBMS
#24  Search engines
Websitewww.eventstore.comgithub.com/­google/­leveldboss.oetiker.ch/­rrdtoolwww.searchxml.net/­category/­productsgithub.com/­torodb/­server
Technical documentationdevelopers.eventstore.comgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdoss.oetiker.ch/­rrdtool/­docwww.searchxml.net/­support/­handouts
DeveloperEvent Store LimitedGoogleTobias Oetikerinformationpartners gmbh8Kdata
Initial release20122011199920152016
Current release21.2, February 20211.23, February 20211.8.0, 20221.0
License infoCommercial or Open SourceOpen SourceOpen Source infoBSDOpen Source infoGPL V2 and FLOSScommercialOpen Source infoAGPL-V3
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++C infoImplementations in Java (e.g. RRD4J) and C# availableC++Java
Server operating systemsLinux
Windows
Illumos
Linux
OS X
Windows
HP-UX
Linux
WindowsAll OS with a Java 7 VM
Data schemeschema-freeyesschema-freeschema-free
Typing infopredefined data types such as float or datenoNumeric data onlyyesyes infostring, integer, double, boolean, date, object_id
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nono infoExporting into and restoring from XML files possibleyesno
Secondary indexesnonoyes
SQL infoSupport of SQLnonono
APIs and other access methodsin-process shared library
Pipes
RESTful HTTP API
WebDAV
XQuery
XSLT
Supported programming languagesC++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
C infowith librrd library
C# infowith a different implementation of RRDTool
Java infowith a different implementation of RRDTool
JavaScript (Node.js) infowith a different implementation of RRDTool
Lua
Perl
PHP infowith a wrapper library
Python
Ruby
C++ infomost other programming languages supported via APIs
Server-side scripts infoStored proceduresnonoyes infoon the application server
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnonenonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnonenoneyes infosychronisation to multiple collectionsSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonomultiple readers, single writerno
Concurrency infoSupport for concurrent manipulation of datayesyes infoby using the rrdcached daemonyesyes
Durability infoSupport for making data persistentyes infowith automatic compression on writesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlnonoDomain, group and role-based access control at the document level and for application servicesAccess rights for users and roles

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More resources
EventStoreDBLevelDBRRDtoolsearchxmlToroDB
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