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Redis™*

Redis™*

Overview

What is Redis™*?

Redis is an open source in-memory data structure server and NoSQL database.

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Recent Reviews

TrustRadius Insights

Redis has proven itself to be an invaluable tool in a wide range of use cases. Users have found Redis to be exceptional as an efficient …
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Set up & forget

7 out of 10
May 08, 2021
Incentivized
We use it to manage & control user sessions in a Tomcat based web application programmed with Java. It's used in both production and …
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Redis Review

9 out of 10
February 03, 2020
Incentivized
Redis has been a vital component in our design, it's usage is mainly for caching API requests, but it also extends to other applications …
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Redis is awesome!

9 out of 10
November 23, 2019
Incentivized
We're using Redis in many ways and across different departments in the organization. The most simple use case is to store locks so the …
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Awards

Products that are considered exceptional by their customers based on a variety of criteria win TrustRadius awards. Learn more about the types of TrustRadius awards to make the best purchase decision. More about TrustRadius Awards

Popular Features

View all 7 features
  • Performance (69)
    10.0
    100%
  • Scalability (69)
    9.4
    94%
  • Availability (69)
    9.0
    90%
  • Concurrency (68)
    9.0
    90%

Reviewer Pros & Cons

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Pricing

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Cloud

$388.00

On Premise
per month

Entry-level set up fee?

  • Setup fee optional
For the latest information on pricing, visithttps://redislabs.com/pricing

Offerings

  • Free Trial
  • Free/Freemium Version
  • Premium Consulting/Integration Services
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Features

NoSQL Databases

NoSQL databases are designed to be used across large distrusted systems. They are notably much more scalable and much faster and handling very large data loads than traditional relational databases.

9.2
Avg 8.8
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Product Details

What is Redis™*?

According to the vendor, Redis is an in-memory multi-model database that supports multiple data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial indexes with radius queries. Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability and automatic partitioning with Redis Cluster.

Redis combines in-memory, schema-less design with optimized data structures and versatile modules that adapt to your data needs. The result is an adept, high performance, multi-purpose database that scales easily like a simple key/value data store but delivers sophisticated functionality with great simplicity, according to the vendor.

Redis also enables data persistence and high availability through replication and backups. Redis Enterprise is built from the ground up to serve as a system of record for any application.

*Redis is a trademark of Redis Ltd. Any rights therein are reserved to Redis Ltd. Any use by TrustRadius is for referential purposes only and does not indicate any sponsorship, endorsement or affiliation between Redis and TrustRadius.

Redis™* Features

NoSQL Databases Features

  • Supported: Performance
  • Supported: Availability
  • Supported: Concurrency
  • Supported: Security
  • Supported: Scalability
  • Supported: Data model flexibility
  • Supported: Deployment model flexibility

Additional Features

  • Supported: Integrated modules
  • Supported: Active-Passive Geo Distribution
  • Supported: Cluster Architecture
  • Supported: Linear Scaling
  • Supported: Durability
  • Supported: Backup and Disaster Recovery
  • Supported: Reliability

Redis™* Screenshots

Screenshot of Screenshot of Screenshot of Screenshot of Screenshot of Screenshot of

Redis™* Video

Why Redis?

Redis™* Integrations

Redis™* Technical Details

Deployment TypesOn-premise, Software as a Service (SaaS), Cloud, or Web-Based
Operating SystemsWindows, Linux, Mac
Mobile ApplicationApple iOS, Android, Windows Phone, Blackberry, Mobile Web
Supported CountriesGlobal
Supported Languageshttps://redis.io/clients

Frequently Asked Questions

Redis is an open source in-memory data structure server and NoSQL database.

MongoDB, Amazon ElastiCache, and Couchbase Server are common alternatives for Redis™*.

Reviewers rate Performance highest, with a score of 10.

The most common users of Redis™* are from Mid-sized Companies (51-1,000 employees).
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Comparisons

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Reviews and Ratings

(224)

Community Insights

TrustRadius Insights are summaries of user sentiment data from TrustRadius reviews and, when necessary, 3rd-party data sources. Have feedback on this content? Let us know!

Redis has proven itself to be an invaluable tool in a wide range of use cases. Users have found Redis to be exceptional as an efficient caching solution, allowing for the distribution of data and storage of web sessions. This capability has led to significant improvements in performance and reliability, making it a go-to choice for many backend development teams. Additionally, Redis's versatility as a NoSQL key-based database store has made it a preferred option for organizations working alongside other databases like PostgreSQL and Memcache. Its ease of use, stability, and reliability have made it a popular choice across multiple departments within organizations.

Furthermore, Redis has been leveraged in various R&D projects to experiment with its implementation in different modules. Starting with cache management, users have been able to extend its usage to address specific project needs effectively. In these experiments, Redis has served as a traditional in-memory key store warehouse for cache systems with a vast number of items, resulting in substantial latency savings. Its ability to manage distributed queues efficiently has also made Redis an excellent choice for tasks that require multiple worker nodes to subscribe and complete tasks. The flexibility Redis offers by enabling users to store sets of object-based information and lists further improves performance through set operations.

In addition to these use cases, Redis has become synonymous with simplicity and speed when it comes to basic yet fast key-value storage solutions. It has been extensively adopted in organizations, including game studios, where it is used for storing user data, session data, game data, and indexing information. For example, Redis Enterprise has been utilized to support backend systems for casual games by providing sub-millisecond response times and facilitating clustering, sharding, backups, and monitoring.

Moreover, customers have found Redis instrumental in addressing various challenges such as big data processing, handling temporal data, managing session state, and even as a caching service in microservices environments. Its ability to provide data consistency, concurrency management, and high-speed operations has proven invaluable. Additionally, Redis has been a reliable tool for caching solutions in e-commerce storefronts and data visualization applications. Users have reported reduced server load and improved performance as a result of implementing Redis as a cache.

Redis has also found success as a buffer cache, allowing for faster data retrieval and improved overall database performance. Its role in processing queues, calling APIs, and supporting vital organizational workflows has been recognized by customers who rely on its stability and speed. Furthermore, users have implemented Redis across various domains to manage user timelines, build notification systems, and implement microservices architecture

Users recommend the following for Redis:

Consider other cache options before choosing Redis. It is advisable to try out other caching solutions before jumping to Redis, even though it is a great tool for highly distributed caching.

Understand the purpose of Redis in your implementation. It is important to have a clear understanding of how Redis will be used in your specific application. Don't assume that it will work straight out of the box. Evaluate data structures and choose a model that allows for faster query times.

Use Redis for specific use cases. Redis shines in certain areas such as synchronizing states across instances and handling user sessions with Node.js. It can also be a good alternative for relational data when speed is of utmost importance. However, users caution against abusing Redis and recommend using it in a reasonable way.

Overall, users believe that Redis is a valuable tool for fast reliable storage and caching, particularly for enterprise applications. However, they also advise considering other key-value stores depending on the specific use case at hand.

Attribute Ratings

Reviews

(1-25 of 75)
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Score 8 out of 10
Vetted Review
Verified User
Incentivized
Redis is being leveraged to address big data, temporal data and session state challenges across the software stack. New opportunities to leverage it are continually being investigated and identified. It addresses data consistency and concurrency issues and provides amazing speed to what could be slower operations if handled without it.
  • Cache speed
  • Support for high volume of transactions with elegant handling of data sets
  • Ease of use - well structured and easy to implement
  • Price per shard is a bit high but over all there are no issues worth mentioning
  • I've heard some wishing it supported complex queries but this is asking the solution to support operations it wasn't intended for
Redis is well suited for:
  • Big data manipulation
  • Temporal data index structures
  • Distributed solutions
  • Publish/Subscribe model based solutions
Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis is used as cache storage in our data visualization application where response time is key. We use Redis for some of the flag features in a system with more than 20,000 internal users. This in-memory database helped to solve many of the use cases we've had on our product like user based caching, realtime analytical operations on one time fetched results.
  • A modern key-value store in-memory database.
  • Redis [is thorough] and details user documentation.
  • Data distribution on a multi-tenant cluster is easy and reliable.
  • It lacks support for datatypes that are available on other products.
  • Making it work with Celery is a bit hard and sometime it's not reliable.
  • Lacks better UI like other systems.
Redis has been a great investment for our organization as we needed a solution for high speed data caching.
The ramp up and integration was quite easy.
Redis handles automatic failover internally, so no crashes provides high availability.
On the fly scaling scale to more/less cores and memory as and when needed.
May 08, 2021

Set up & forget

Score 7 out of 10
Vetted Review
Verified User
Incentivized
We use it to manage & control user sessions in a Tomcat based web application programmed with Java. It's used in both production and testing & development environments in this certain application's server backend, but only the software development department actually understands & manages it. It solves the case to keep users logged in to the application and also invalidates the sessions when requested or automatically if they expire.
  • Has been working well for storing user sessions.
  • No need for maintenance operations. Once it's set up has been working flawlessly.
  • Many configuration options, little programming required.
  • The actual database structure is difficult to understand.
  • Only command line application available for free. Difficult to use.
  • Seems to have some encoding issues when inspecting data directly with CLI app.
It is well suited when a web application needs to store any kind of user sessions. It works both for storing logged in user sessions but also for non authenticated users. User sessions are temporary; however, for storing permanent data that needs to be retained across sessions it is not appropriate because Redis is an in-memory database.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Redis is used as our primary cache for our application to help reduce response time and improve user experience. By caching read intensive data in Redis, this also helps to reduce load on our database.
  • Great performance for reading data
  • Easy to set up and work with
  • Great support for many different types of data structure
  • Lacking monitoring and administration tools
  • System resource consumption as you scale up
Perfect solution for caching needs. If you have a bottleneck due to frequent data access to your database, then Redis can really help you by diverting those traffic away from your database. Its key/value pair structure also makes data lookup very efficient, providing excellent performance.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis was used in a project to merge live data from different sources. Then by using Lua scripting we were able to make some further aggregations and data binding for better results. It was essential for us as preparation for next steps.
We also used it as session storage manager for some other projects.
  • It's fast for key value hashes operations.
  • Lua Scripting extension is really powerful.
  • Single-threaded.
Session manager - With in-built expires it's the perfect solution for that scenario.
Data binding as we can use its key value architecture to store data from different sources under the same key so they will be automatically matched. And with now previous data structure we can extend for example hashes horizontally.
It may be costly to use it as persistent data storage.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Our organization uses data a lot. It is essential that we deal with a huge set of data and in a quick and timely fashion. Our data services in order to achieve this, we use Amazon's Redis cache. It's been working great for us and we have been using Redis for 1.5 years now. It is reliable and helps speed up our services by at least 40% and reduces the DB calls.
  • As with other service offerings from Amazon, Redis is fully managed as well and eliminates a lot of burden on our team.
  • It's easy to get hold of all the metrics as it is integrated with Cloudwatch.
  • Very quick and easy to deploy and configure the Redis services into our environment.
  • It becomes expensive over time and need to keep a close watch on the usage.
  • If the instance goes down, there is no backup preserved.
Redis works great in our data services applications. Very easy to spin off and configure Redis and link it with our services. We have saved a lot of database downtime as we started using Redis. We now access the information directly from Redis cache instead of hitting the database for every information. We had to write a caching mechanism that suites our needs. We refresh the cache on a timely basis to make sure it has the latest data from the database.
February 18, 2020

REDIS great as K/V cache

Anson Abraham | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
[It's being used as a] Caching service for quick key lookups.
  • Quick key lookups.
  • Distribution of data is easy and reliable.
  • Almost HA.
  • HA automatic failover for master and promoting slave on own.
  • Doesn't handle 1M r/s sadly.
  • Cross DC replication not so great.
If you're doing caching, it's perfect. Especially when doing key-value store lookups. However, if you have a hardware load balancer, then setting up multiple slaves would be good. One slave is not so great for 1 million reads per sec. Transactions to the master can be slow at times depending on how much written to it Not as afast as say cassandra for writes.
February 03, 2020

Redis Review

Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis has been a vital component in our design, it's usage is mainly for caching API requests, but it also extends to other applications such as rate limiting and pub-sub mechanism.
  • Latency.
  • In-memory.
  • Ease of use.
  • Open source licensing was ambiguous.
Redis is well suited for in-memory caching, API caching, and rate-limiting.
Gene Baker | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Incentivized
We used Redis for application data caching. Redis is used by more than one department and is an enterprise standard offering. We have since moved away from Redis as we were able to simplify our architecture given our more powerful database servers after our latest tech refresh. When we were using Redis, our application response times were too slow for certain transactions so we cached the data to improve performance. There are other use cases that we considered like caching of session data. Again our goal was to simplify our architecture and Redis was one of the products we eliminated, not because it wasn't a good product but because we no longer needed it for our application.
  • Application data caching.
  • Session data caching.
  • Managing cache misses better.
I think Redis is a great product. Our problem was we were using too many different products when we could have been just using one. We had Redis for application data caching, we were using Xtreme Scale to cache session data, when in fact Redis could have handled both. The decision was made to stick with Xtreme Scale but honestly I would have preferred to stay with Redis. Redis handles application data caching well. We had some issues with cache misses, but I think that was more of what we did and less of what Redis did (or didn't do). That being said, after some recoding, we had no issues. I think that the Redis product could be little easier to use there but again, it was probably a learning curve item for us and not so much the product.
December 20, 2019

Fast and reliable

Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis is being used across the whole organization as a better cache/message broker service, replacing SQL Server.
  • Caching
  • Message broker
  • Different OSs
So far, the product definitely excels at the services it was designed for. Obviously, it's not a replacement for your typical relational database system.
Esteban Ignacio Masoero | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis is used across all the organization. It is used by our main games to store user data, session data, game data, and indexing some information related to it.

Having backend systems that support casual games, like Trivia Crack, must support instant virtualization and big spikes that can happen during holidays, Christmas, and so on. Consequently, it is important to have a sub-millisecond database to be able to increase the requests rate very rapidly.
  • Answer requests at sub-millisecond latency: by having all the data in memory, the latency has no comparison to other disk based DBs.
  • Simplicity: it is incredibly simple and straightforward to use. You can download Redis and start using it during the next five minutes.
  • Reliable & scalable: when working with a cluster (and if you have a proper sharding strategy), your DB can scale to pretty high numbers and not to die in the middle of any spike.
  • Cost: by having all the data in memory, it can be very expensive. There should be an option for having some data stored on disk, at least initially (and with the tradeoff of some higher latency).
  • Lack of some basic permissions: there should be a way of having a user with restricted commands (i.e.: no keys *, now write commands, etc).
  • Multi-module available on the same Redis instance (as far as I know, this is not possible yet).
Everywhere speed and scalability is a must, Redis is the way to go. On the other hand, if you want to store huge amounts of data and do not need an extremely low latency, Redis might be too expensive for you. Also, if you are looking for some transactionality and consistency in your data, remember that Redis is a NoSQL database.
November 23, 2019

Redis is awesome!

Score 9 out of 10
Vetted Review
Verified User
Incentivized
We're using Redis in many ways and across different departments in the organization. The most simple use case is to store locks so the backend services can reject duplicated API requests. A little more advanced use case is to use it as a buffer for queues of messages or requests. We're also exploring ways to use the new Graph type to support Data Science models in development.
  • Redis has many data types that suit a variety of use cases such as caching, message queues, graphs.
  • Redis is an open-sourced tool with a growing community, as well as 3rd party support (Amazon managed version) if you need additional help with the set-up.
  • Both the clients and the command line tool are easy to use and well-documented.
  • Scaling has always been an issue with Redis. Routing to shards is not automatic.
  • There's no GUI for managing the keys and values stored in Redis. The command-line tool is useful but not friendly to non-engineering users.
  • The data types as in data structures have many choices, but inside of the key-value pair, the content is always stored as a string.
Redis is a tool when you want to get a key-value store up and running in production quick without a lot of constraints. And it will keep the customer happy for a considerably long time. However, if the scaling is critical, Redis might not be the best choice available in the market.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis is being used as our main nonSQL database store. We run PostgreSQL as the main relational data store, Our entire platform used within the business unit utilizes Redis and is also customer facing. The stability, reliability and scalability are great and it's also easy to easy to set up and implement.
  • Great reliability and great fail over capabilities
  • Easy to set up, implement and deploy
  • Can scale as you grow
  • Backups to AWS S3 are supported and are very easy to set up
  • Better UI interface for less technical support personnel
  • Wish Reids had a Chat support option
  • Better documentation in a wiki format
Redis is great at at reducing your reliance on SQL and the cost associated with running a SQL infrastructure.We have been able to scale out and improve performance on database requests. Reliability has also great improved over running a SQL infrastructure.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use Redis in our back end messaging platform for database, cache synchronization functions. Redis is being used throughout our entire organization and is the basis for our EMR messaging platform.
  • Great fail over capabilities for optimal up time
  • Very easy to set up and get running
  • Create backups to AWS S3
  • Clustering for greater performance is very easy
  • Able to scale is easy to set up and can build with your needs
  • Complete data sets tend to have some difficulty. But that's mostly on the type of code you're running
  • Only one module can be active at one time. Wish you could run multiple
Redis is great for any organization that requires data-intensive tasks that quire records or require large sets of data. Redis has greatly improved our messaging EMR performance at reduced costs compared to if we built our own solutions. If you require fast response speeds then Redis is your provider. Great for back end data base processing.
October 08, 2019

Gets the job done!

Emiliano Perez | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis Enterprise helps us by making clustering, sharding, backups and some more very easy to set-up, control, and monitor. It's quite nice being able to sleep at night knowing that despite all your database is on volatile memory (RAM) or a hybrid solution (Redis on Flash), and still have the information clustered, sharded, replicated, and constantly being backed up, with just a few clicks. The support is really great, and the ease of use and set-up are also big selling points.
  • Ease of use and set-up.
  • Clustering and sharding.
  • Automated backups to remote storage (S3).
  • The documentation grows quite fast (200+ commands), perhaps they should have a most-used ranking.
  • Redis modules (Bloom, JSON, Search) are great, but only one can be active at a time.
Redis is fast, super simple and reliable. You need minimum security measures like having your data replicated and (at least daily) backups for emergencies. If you want to have all this done automatically by a simple UI, then Redis Enterprise is a must We have been working with Redis for over 5 years and we couldn't be happier.
September 25, 2019

Perfect performing cache

Score 9 out of 10
Vetted Review
Verified User
Incentivized
We use it for high-speed cache, data storage for short periods of time, and it is ideal for immediate access to the leaderboard.
  • Speed.
  • Ease of use.
  • Variety of use cases.
  • Support faster SSL access, currently bring performance down by 50% with SSL.
  • Cost - Most providers not cheap.
  • Native support to access search through a variety of data formats.
Redis is well suited for timed caches. Without it, they would require more complex DB solutions. It is very reliable and takes less than 15 lines of code to write a sophisticated solution.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We're currently using Redis to support distributed caching and synchronization across our app. Our application runs on multiple servers so ensuring all infrastructure is in sync and key operations are atomic is critical. It's being used by the backend development team in core infrastructure. Redis is well suited to solve this problem as it offers both performance and reliability.
  • Atomic operations
  • Quick Lookups
  • Widely supported (there are many tools/libraries built over Redis)
  • We had some difficulty scaling Redis without it becoming prohibitively expensive.
  • Redis has very simple search capabilities, which means its not suitable for all use cases.
  • Redis doesn't have good native support for storing data in object form and many libraries built over it return data as a string, meaning you need build your own serialization layer over it.
Redis is a great tool for distributed caching and synchronization/locking in systems with multiple instances. It also works well for non-persistent data that doesn't grow over time, for instance, you might want to use Redis to manage a queue. It's a particularly good choice for pieces of data that are frequently updated.

Conversely, due to price/data I wouldn't recommend Redis for persisted or infrequently accessed data.
September 21, 2019

Redis is Awesome

David Sommers | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Redis is being used as our primary NoSQL key-based database store. In the specific platform that Redis is being used the most, we have PostgreSQL as the main relational data store, Memcache for expiring key-based caching and Redis. The entire platform used within the business unit utilizes Redis but other departments are starting to use it as well given the ease of use, stability, and reliability.
  • Easy for developers to understand. Unlike Riak, which I've used in the past, it's fast without having to worry about eventual consistency.
  • Reliable. With a proper multi-node configuration, it can handle failover instantly.
  • Configurable. We primarily still use Memcache for caching but one of the teams uses Redis for both long-term storage and temporary expiry keys without taking on another external dependency.
  • Fast. We process tens of thousands of RPS and it doesn't skip a beat.
  • Autoscale. We've used Redis at RedisLabs and currently on AWS with ElastiCache plus previously I've self-hosted it and there are no real options for "serverless" or an operating model whereby I'm using only the resources needed to handle my current volume, instead, everything is provisioned and sized to your highest throughput needs. For us, that's only a few hours a day where we're at our peak, the other 16 hours could run smaller hardware but the system doesn't autoscale up/down seamlessly on any of the platform providers.
  • Management console. Some systems such as Riak have a built-in GUI for ops or Mongo runs their own Compass product but Redis seems to entirely rely on other OSS solutions, which is great, but having a built-in tool that's lock-step with the released versions would ease any quick troubleshooting that CLI-challenged ops teams could utilize.
  • Redis replication is asynchronous. Therefore, when a primary cluster fails over to a replica, a small amount of data might be lost due to replication lag.
Redis is great for queues (push/pop) and pub/sub. It can also be used for caching though take care of managing those expire settings and don't mix permanent keys with expired keys on the same hosts unless you want to spend some time troubleshooting unplanned evictions. When looking at open source solutions to messaging, queuing, background jobs, etc. - you'll find many solutions work with Redis out-of-the-box.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
Redis is used by our organization to deliver schedules to the users of livestreams and playlists. We needed something that could deliver very high requests per second and also allow us database updates without impact to our customers. This has been accomplished with Redis.
  • The system is very reliable. The only times we had issues was when we hit database capacity limits.
  • There is continuing development on the technology (like Redis streams) that make it an even more attractive technology.
  • For systems that require many concurrent users, like several million watching the Super Bowl on their connected devices, it works and it works well.
  • None that I can think of
It is well suited where you need lots of calls to a database, not the best solution for long term storage
Score 10 out of 10
Vetted Review
Verified User
Incentivized
It is used for the whole organization for caching and performance. We avoid hitting the DB in a factor of more than 100x, at a lower cost.
  • Key-value access, very fast.
  • Caching - either using hashmaps or simple values.
  • The Python package elastic DSL is somehow incomplete.
  • Moving from a Python client to Redis 2 to Redis 3 is a mess.
Redis is good for caching and helps you to avoid hitting the DB. It offers a key-value store where you can put references to objects or temporary values (counters) that will later go to the DB.

Redis isn't as suited for complex objects or serialized data that takes a lot of space. With the milions of users, costs would go way up.
Leonel Quinteros | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We use Redis as a Cache DB in a microservices environment to store auth tokens, temporary data and sync flags to coordinate processes that are handled by multiple parties asynchronously.
The main problem it solves for us is to need to have a high-performance cache that also provides data persistence so we can restart instances and deploy new ones without losing data in the middle. This is very important for us because of the problem we're tackling. In the case of auth tokens, we don't want to make all users log in again after we restart an instance because the memory got cleared. The same applies for the sync flags that our processes depend on to complete.
  • High performance. Redis is FAST, really fast.
  • Data persistence. Having this feature was the main reason we chose Redis over Memcached.
  • Clustering. Distributing data between multiple instances is easy to do with Redis.
  • Data types. It isn't normal to have native data types supported on cache servers, but Redis covers many areas for this use case.
  • The data type collections aren't extensive and can fall short for some needs.
  • Single-threaded. Redis doesn't support multi-threading, so it won't benefit from multi-core CPUs. Instead, you need to deploy several single-core instances to scale horizontally. While this is a design decision, it may be a downside on some infrastructures.
  • Lack of UI. A visual UI can be a downer for some users.
Redis is great for any cache service with data persistence implementation. If you need a super-fast cache, you can always use the in-memory cache (without persistence) to improve performance and still get all the benefits of the service.
It's usually compared to Memcached, and in terms of performance I think they're very similar, and for some critical applications, Memcached may be a better option. But the feature-rich characteristics of Redis will position it in a more competitive place against many applications.
September 14, 2019

Redis Rocks

Ryan Hiebert | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use Redis as a cache for our Django application, and as the result storage for Celery, our distributed task runner.
  • Simple
  • Fast
  • Has a variety of data types
  • Transaction support
  • Automatic command when a connection closes
  • Negative acknowledgement support in streams
Redis is well suited for caching, as well as distributed coordination between workers. It doesn't work extremely well for cases where the data is highly interconnected, though RedisGraph may be a good solution to that (I'm not able to review it, because I haven't used it). Its variety of data types makes it possible to do some rather advanced things easily, and when combined with scripting, there are very few hard limitations on what is possible.
Eduin Zuloaga | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use Redis to store data such as ID sessions, card tokens. We have a cluster with three servers in three different environments, and it's working very well.
  • Very scalable.
  • High performance.
  • Easy to use.
  • Management tool could be better.
  • Books in Spanish.
The best scenario for Redis is where fast response speed is required to have an optimal performance of the applications, or when it is required to have data that is consulted on a recurring basis.
September 11, 2019

The Redis Imperative

Score 8 out of 10
Vetted Review
Verified User
Incentivized
Redis is used for transnational processing and scoring of customer data models for pub/sub-distribution to other models of data.
  • Redis provides the ability to score data quickly.
  • Redis provides the ability to distribute this info in a fast manner.
  • Redis provides an alternative method for data retrieval which lessens the load on the database access.
  • Greater emphasis on Pub/Sub capabilities more in line with Kafka.
Well suited for keeping track of scoring scenarios.

Poorly suited for long term storage of data.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We use Redis to run frontend caching, sessions and backend value store systems for our main web property. We are big supporters of the community and love watching it evolve over time. We've been early adopters in the NoSQL movement starting with Mongo and Couch. We're still using Redis, although we can't say the same for the others.
  • Key value storage
  • Session and Cookie management
  • Frontend caching
  • Third-party library support sometimes lags
  • Weak type support
  • Everything is in memory, so you need lots of RAM
Redis is well suited for front end caching of websites and apps. We also use it successfully to manage our web/app cookies and sessions. Everything in Redis is in your RAM, so if you need anything stored permanently you'll need to turn on the persistence options, which will slow down Redis a bunch since it has to write to disk.
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