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DBMS > Apache Solr vs. Ehcache

System Properties Comparison Apache Solr vs. Ehcache

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Our visitors often compare Apache Solr and Ehcache with Redis, Microsoft Azure AI Search and Databricks.

Editorial information provided by DB-Engines
NameApache Solr  Xexclude from comparisonEhcache  Xexclude from comparison
DescriptionA widely used distributed, scalable search engine based on Apache LuceneA widely adopted Java cache with tiered storage options
Primary database modelSearch engineKey-value store
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score32.40
Rank#24  Overall
#3  Search engines
Score3.94
Rank#68  Overall
#8  Key-value stores
Websitesolr.apache.orgwww.ehcache.org
Technical documentationsolr.apache.org/­resources.htmlwww.ehcache.org/­documentation
DeveloperApache Software FoundationTerracotta Inc, owned by Software AG
Initial release20062009
Current release9.6.1, May 20243.10.0, March 2022
License infoCommercial or Open SourceOpen Source infoApache Version 2Open Source infoApache Version 2; commercial licenses available
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJava
Server operating systemsAll OS with a Java VM inforuns as a servlet in servlet container (e.g. Tomcat, Jetty is included)All OS with a Java VM
Data schemeyes infoDynamic Fields enables on-the-fly addition of new fieldsschema-free
Typing infopredefined data types such as float or dateyes infosupports customizable data types and automatic typingyes
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.yesno
Secondary indexesyes infoAll search fields are automatically indexedno
SQL infoSupport of SQLSolr Parallel SQL Interfaceno
APIs and other access methodsJava API
RESTful HTTP/JSON API
JCache
Supported programming languages.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala
Java
Server-side scripts infoStored proceduresJava pluginsno
Triggersyes infoUser configurable commands triggered on index changesyes infoCache Event Listeners
Partitioning methods infoMethods for storing different data on different nodesShardingSharding infoby using Terracotta Server
Replication methods infoMethods for redundantly storing data on multiple nodesyesyes infoby using Terracotta Server
MapReduce infoOffers an API for user-defined Map/Reduce methodsspark-solr: github.com/­lucidworks/­spark-solr and streaming expressions to reduceno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyTunable Consistency (Strong, Eventual, Weak)
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataoptimistic lockingyes infosupports JTA and can work as an XA resource
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infousing a tiered cache-storage approach
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlyesno

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More resources
Apache SolrEhcache
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