Redis VS ElasticSearch - compare differences & reviews?

Redis

Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

ElasticSearch

Elasticsearch is an open source, distributed, RESTful search engine.

Landing page //
2022-10-19

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs, geospatial indexes with radius queries and streams. Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic partitioning with Redis Cluster.

Landing page //
2023-10-10

What is Redis? | Why and When to use Redis? | Tech Primers

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Category Popularity

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Databases

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Custom Search Engine

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Custom Search Engine

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NoSQL Databases

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User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Redis and ElasticSearch

Redis Reviews

Are Free, Open-Source Message Queues Right For You?

A notable challenge with Redis Streams is that it doesn't natively support distributed, horizontal scaling. Also, while Redis is famous for its speed and simplicity, managing and scaling a Redis installation may be complex for some users, particularly for persistent data workloads.

Source: blog.iron.io

Redis vs. KeyDB vs. Dragonfly vs. Skytable | Hacker News

1. Redis: I'll start with Redis which I'd like to call the "original" key/value store (after memcached) because it is the oldest and most widely used of all. Being a long-time follower of Redis, I do know it's single-threaded (and uses io-threads since 6.0) and hence it achieves lesser throughput than the other stores listed above which are multi-threaded, at least to some...

Source: news.ycombinator.com

Memcached vs Redis - More Different Than You Would Expect

Remember when I wrote about how Redis was using malloc to assign memory? I lied. While Redis did use malloc at some point, these days Redis actually uses jemalloc. The reason for this is that jemalloc, while having lower peak performance has lower memory fragmentation helping to solve the framented memory issues that Redis experiences.

Source: engineering.kablamo.com.au

Top 15 Kafka Alternatives Popular In 2021

Redis is a known, open-source, in-memory data structure store that offers different data structures like lists, strings, hashes, sets, bitmaps, streams, geospatial indexes, etc. It is best utilized as a cache, memory broker, and cache. It has optional durability and inbuilt replication potential. It offers a great deal of availability through Redis Sentinel and Redis Cluster.

Source: www.spec-india.com

Comparing the new Redis6 multithreaded I/O to Elasticache & KeyDB

So there are 3 offerings by 3 companies, all compatible with eachother and based off open source Redis: Elasticache is offered as an optimized service offering of Redis; RedisLabs and Redis providing a core product and monetized offering, and KeyDB which remains a fast cutting edge (open source) superset of Redis. This blog looks specifically at performance, however there is...

Source: docs.keydb.dev

ElasticSearch Reviews

Log analysis: Elasticsearch vs Apache Doris

Benchmark tests with ES Rally, the official testing tool for Elasticsearch, showed that Apache Doris was around 5 times as fast as Elasticsearch in data writing, 2.3 times as fast in queries, and it consumed only 1/5 of the storage space that Elasticsearch used. On the test dataset of HTTP logs, it achieved a writing speed of 550 MB/s and a compression ratio of 10:1.

Source: doris.apache.org

4 Leading Enterprise Search Software to Look For in 2022

“ We’ve built some big data search and mobile desktop applications that help our customers experience fast natural language search. Some applications require this, where I need to find data, I don’t want to build some complex query, I just need to ask the system “help me search for this information, narrow my results” and I don't want to wait several seconds. We’ve built a...

Source: ascendixtech.com

Top 10 Site Search Software Tools & Plugins for 2022

Elasticsearch is built for human users, which means that it’s equipped to handle mistakes that humans often make such as typos. This helps to improve search relevance and enhance the overall search experience. It offers real-time crawling, which automatically detects changes in content and ensures that search results are fresh and relevant.

Source: influencermarketinghub.com

Best Elasticsearch alternatives for search

However, when it comes to dealing with synonyms (i.e. ‘smart phone’ for ‘Samsung Galaxy’), slang (i.e. ‘kicks’ for ‘Nike Air Jordans’) and context (i.e. ‘car park’ is different to ‘dog park’) – you have to set up a bunch of manual rules/definitions with Elasticsearch and co.

Source: relevance.ai

5 Open-Source Search Engines For your Website

Elasticsearch provides key features like Advanced Full-Text Search Capabilities like Data indexing, Search capabilities including phrases, wildcards, auto suggestions, filters & facets, etc... Elasticsearch can also be used for other use-cases like

Source: vishnuch.tech

Social recommendations and mentions

Based on our record, Redis seems to be a lot more popular than ElasticSearch. While we know about 183 links to Redis, we've tracked only 17 mentions of ElasticSearch. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Redis mentions (183)

Redis is not "open core" (2021)
The page 404s for me currently and it does not seem to be archived by the wayback machine either: https://web.archive.org/web/20240000000000*/https://redis.io/news/121. - Source: Hacker News / 17 days ago
Software Engineering Workflow
Redis - real time data storage with different data structures in a cache. - Source: dev.to / 18 days ago
Redis License Changed
Redis.io no longer mentions open source. They have still not changed meta description on their page. It still says it is open source ^^ view-source:https://redis.io/. - Source: Hacker News / about 1 month ago
Tutorial: Install Redis in Distro Linux: Pop!_OS
Follow the steps below to install Redis:. - Source: dev.to / about 2 months ago
How to choose the right type of database
Redis: An open-source, in-memory data structure store supporting various data types. It offers persistence, replication, and clustering, making it ideal for more complex caching requirements and session storage. - Source: dev.to / about 2 months ago

ElasticSearch mentions (17)

ElasticSearch from the Azure store or from Elastic.co?
What surprised me is that on the Azure store, the only option I see is (Pay as you go), whereas on elastic.co there are the standard platinum and enterprise tiers followed by a where to deploy page and a pricing overview. Source: 10 months ago
Hunspell on elastic.co cloud
Can anyone help me how to upload custom hunspell stemmer files to elastic cloud (elastic.co)? According to elastic docs it should go under elasticsearch/config/hunspell, but according to cloud docs I should upload it via features/extension tab. So I tried zipping the hunspell folder and uploading it. I also figured out that it should be in the dictionaries folder, but after uploading it still doesn't work. Source: 11 months ago
Creating a modern, SaaS website.. what am I missing?
I can't figure out where I have to go to get more or less of a custom, premium website. I should mention that I look up to websites like elastic.co for example, would be very happy with something like that. I could really use some guidance! Source: about 1 year ago
Ask HN: Who is hiring? (October 2022)
Elastic | Multiple software engineering roles | REMOTE (EMEA) | Full-time | https://elastic.co Elastic offers solutions for security and observability that are built on a single, open technology stack that can be deployed anywhere. Elastic Security enables security teams to prevent, detect, and respond to attacks with a solution built atop the speed and reliable of the Elastic stack. The Security External... - Source: Hacker News / over 1 year ago
Seeking clarification about which part of ElasticSearch to use for our website
I have been trying to digest the elastic.co website to try to understand how we can use elastic search, but I've come to a point where I'm not sure which part of elastic, (if any) makes sense for us. In fact I am royally confused. I wonder if anyone here can help clarify? Source: almost 2 years ago

What are some alternatives?

When comparing Redis and ElasticSearch, you can also consider the following products

MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.

Algolia - Algolia's Search API makes it easy to deliver a great search experience in your apps & websites. Algolia Search provides hosted full-text, numerical, faceted and geolocalized search.

ArangoDB - A distributed open-source database with a flexible data model for documents, graphs, and key-values.

Apache Solr - Solr is an open source enterprise search server based on Lucene search library, with XML/HTTP and...

Apache Cassandra - The Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance.

Typesense - Typo tolerant, delightfully simple, open source search 🔍

Redis vs Apache Cassandra

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