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DBMS > Hazelcast vs. OpenTSDB vs. Percona Server for MySQL vs. Realm

System Properties Comparison Hazelcast vs. OpenTSDB vs. Percona Server for MySQL vs. Realm

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Editorial information provided by DB-Engines
NameHazelcast  Xexclude from comparisonOpenTSDB  Xexclude from comparisonPercona Server for MySQL  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionA widely adopted in-memory data gridScalable Time Series DBMS based on HBaseEnhanced drop-in replacement for MySQL based on XtraDB or TokuDB storage engines with improved performance and additional diagnostic and management features.A DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data
Primary database modelKey-value storeTime Series DBMSRelational DBMSDocument store
Secondary database modelsDocument store infoJSON support with IMDG 3.12
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score5.46
Rank#61  Overall
#7  Key-value stores
Score1.68
Rank#142  Overall
#12  Time Series DBMS
Score2.10
Rank#119  Overall
#57  Relational DBMS
Score7.41
Rank#52  Overall
#8  Document stores
Websitehazelcast.comopentsdb.netwww.percona.com/­software/­mysql-database/­percona-serverrealm.io
Technical documentationhazelcast.org/­imdg/­docsopentsdb.net/­docs/­build/­html/­index.htmlwww.percona.com/­downloads/­Percona-Server-LATESTrealm.io/­docs
DeveloperHazelcastcurrently maintained by Yahoo and other contributorsPerconaRealm, acquired by MongoDB in May 2019
Initial release2008201120082014
Current release5.3.6, November 20238.0.36-28, 2024
License infoCommercial or Open SourceOpen Source infoApache Version 2; commercial licenses availableOpen Source infoLGPLOpen Source infoGPL version 2Open Source
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaC and C++
Server operating systemsAll OS with a Java VMLinux
Windows
LinuxAndroid
Backend: server-less
iOS
Windows
Data schemeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or dateyesnumeric data for metrics, strings for tagsyesyes
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.yes infothe object must implement a serialization strategynoyesno
Secondary indexesyesnoyesyes
SQL infoSupport of SQLSQL-like query languagenoyesno
APIs and other access methodsJCache
JPA
Memcached protocol
RESTful HTTP API
HTTP API
Telnet API
ADO.NET
JDBC
ODBC
Supported programming languages.Net
C#
C++
Clojure
Go
Java
JavaScript (Node.js)
Python
Scala
Erlang
Go
Java
Python
R
Ruby
Ada
C
C#
C++
D
Eiffel
Erlang
Haskell
Java
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresyes infoEvent Listeners, Executor Servicesnoyesno inforuns within the applications so server-side scripts are unnecessary
Triggersyes infoEventsnoyesyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesShardingSharding infobased on HBasenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoReplicated Mapselectable replication factor infobased on HBaseMulti-source replication
Source-replica replication
XtraDB Cluster
none
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency or Eventual Consistency selectable by user infoRaft Consensus AlgorithmImmediate Consistency infobased on HBaseImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataone or two-phase-commit; repeatable reads; read commitednoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyesyes infoIn-Memory realm
User concepts infoAccess controlRole-based access controlnoUsers with fine-grained authorization concept infono user groups or rolesyes

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More resources
HazelcastOpenTSDBPercona Server for MySQLRealm
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