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Solr and Elasticsearch are both open-source search servers that are often used to integrate search functionality into e-commerce platforms such as OXID eShop. Although they both offer similar functionality, there are some important differences to consider when deciding which search server is best for a particular project.

Why use Solr or Elasticsearch?

Search servers like Solr and Elasticsearch play an important role in e-commerce platforms by providing fast and relevant search results for users. They achieve this by indexing and searching large amounts of data and providing various features that improve search performance. These include, for example, the ability to "autocomplete" user input and to filter and sort search results. Other useful features provided by search servers such as Solr and Elasticsearch include support for synonyms, processing queries in different languages and the ability to integrate external data sources. All of these contribute to providing users with a comprehensive and user-friendly search functionality.

Solr vs. Elasticsearch: A comparison


A key difference between Solr and Elasticsearch is the feature set. Solr offers a richer set of features and is better suited for developing more complex search applications. These include, for example, the processing of queries in different languages, the use of synonyms and the integration of external data sources. Elasticsearch, on the other hand, is mainly designed as a search server and offers fewer functions than Solr. However, it is generally easier to configure and use, making it more attractive for simpler search applications. It is important to note that both search servers are capable of delivering similar results, but the effort required to configure and operate them may vary.

Performance and scalability

An important consideration when choosing a search server is performance and scalability. In this regard, Elasticsearch typically has better performance compared to Solr, especially when processing large amounts of data. Elasticsearch uses a distributed architecture where queries are spread across multiple servers to minimise load. Solr also offers the ability to distribute queries, but is less effective than Elasticsearch in this regard.

Areas of application

Solr and Elasticsearch are both powerful search servers that are suitable for different areas of use. An important area of use for both systems is integration in e-commerce platforms, where they help provide fast and relevant search results. Both systems offer useful functions such as the ability to filter search results according to various criteria, support for search suggestions and the use of synonyms in searches.

Solr and Elasticsearch are also suitable for analysing data and offer different functions for this. Solr offers a wide range of analysis functions, while Elasticsearch is particularly suitable for data analysis through the use of aggregation functions. Both systems can index large amounts of data and offer the possibility of integrating external data sources.

Another area of use for Solr and Elasticsearch is in content management systems, where they help improve search functionality. Both systems support the processing of queries in different languages and offer the possibility to filter and sort search results.

Advantages and disadvantages

In summary, Solr offers a broader set of features and is better suited for large-scale search applications, while Elasticsearch is primarily designed as a search server and can deliver faster search results. One disadvantage of Solr is that it is usually more complex to configure and use than Elasticsearch. On the other hand, Elasticsearch offers fewer features than Solr and may be less suitable for large-scale search applications.

What costs should one expect with the systems?

There are a few factors that can affect the cost of ownership of Solr and Elasticsearch, including:

Hardware costs: depending on how much memory and processing power you need, the cost of the hardware running Solr or Elasticsearch can vary.

Licensing costs: Solr is open source and free, while Elasticsearch may require a paid licence, depending on how you use it.

Cost of operation: This includes costs for running Solr or Elasticsearch, such as managing and maintaining the search engine, monitoring the system and integrating it into existing IT infrastructure.

Costs for external services: You might also have costs for external services, such as integrating Solr or Elasticsearch with other applications or training staff to use the search engine.

It is difficult to give exact operating costs for Solr or Elasticsearch because they depend on many factors. It is advisable to create a cost estimate for your specific implementation by considering all relevant factors.


Which search server to choose for use in an OXID eShop depends on the requirements of the project. Solr offers a wider range of features and is better suited for large-scale search applications, while Elasticsearch can deliver faster search results and is easier to configure. In the end, you have to weigh up what your requirements are and which search server is best suited to them.

It is possible that both Solr and Elasticsearch can provide similar results and improvements when searching in an OXID eShop. Both are powerful search engine platforms suitable for indexing and searching data in an e-commerce shop. However, they also have some differences that should be considered when deciding which platform is best suited for use in an OXID eShop.

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