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Apache Flink vs Redpanda comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Dec 17, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Apache Flink
Ranking in Streaming Analytics
3rd
Average Rating
7.8
Reviews Sentiment
6.7
Number of Reviews
19
Ranking in other categories
No ranking in other categories
Redpanda
Ranking in Streaming Analytics
4th
Average Rating
8.6
Reviews Sentiment
6.4
Number of Reviews
14
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Streaming Analytics category, the mindshare of Apache Flink is 6.7%, down from 14.2% compared to the previous year. The mindshare of Redpanda is 2.2%, up from 1.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Streaming Analytics Mindshare Distribution
ProductMindshare (%)
Apache Flink6.7%
Redpanda2.2%
Other91.1%
Streaming Analytics
 

Featured Reviews

Sanjay Srivastava - PeerSpot reviewer
Software Architect at IBM
Streaming workflows have improved data integration and support real-time pipelines across platforms
We are not using Apache Flink in its advanced window capabilities. We are using the Apache Flink job in Apache SeaTunnel, meaning we can write the code inside Apache SeaTunnel. Currently, we are moving; both solutions are there. We are doing it on-premises with the help of Kubernetes and OpenShift. The main reason why Apache Flink is better is that it has more functions, and being open source with easy code in Apache SeaTunnel helps us achieve that. Cost is a major issue. I would rate the stability of the product as an eight. For Apache Flink, the final point can be rated an eight. I can recommend Apache Flink to other users for streaming support, and I am recommending it. I would rate this review an eight overall.
ArpitShah - PeerSpot reviewer
Software Analyst at CLSA
Event streaming has simplified video data cleanup and now powers real-time analytics
One area for improvement is providing more examples. For instance, Redpanda could be more useful as a sink where you get the data and can directly push to S3. While this is possible through the API, there are better and faster ways to do it. You can make a million API calls and accomplish the task in one and a half hours, but the same thing can be done in ten minutes through other methods. These faster approaches are not documented in obvious places. You have to find information scattered across various blogs. Redpanda should collect all the good blogs and best practices and put them in their documentation. This is more about knowledge management and making it easy for users to understand the product for complex use cases. For simple use cases, it is straightforward. We all use the basic pipe functionality. However, providing more examples would be useful. For example, integration with AWS and the AWS ecosystem would be cool.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Apache Flink is meant for low latency applications. You take one event opposite if you want to maintain a certain state. When another event comes and you want to associate those events together, in-memory state management was a key feature for us."
"The setup was not too difficult."
"The end-to-end latency was drastically reduced, and our capability of handling high throughput has increased by using Flink."
"Easy to deploy and manage."
"The product helps us to create both simple and complex data processing tasks. Over time, it has facilitated integration and navigation across multiple data sources tailored to each client's needs. We use Apache Flink to control our clients' installations."
"Flink moved on to becoming a standard technology for location platform."
"Apache Flink's best feature is its data streaming tool."
"With Flink, it provides out-of-the-box checkpointing and state management. It helps us in that way. When Storm used to restart, sometimes we would lose messages. With Flink, it provides guaranteed message processing, which helped us. It also helped us with maintenance or restarts."
"Redpanda has positively impacted my organization by being easy to implement quickly for use cases such as the implementation of MVPs and PoCs, making scalability, tolerance, and availability very interesting and facilitating the provisioning of infrastructure efficiently."
"I have seen positive outcomes including improved efficiency, cost savings, and better performance metrics because it is open-source, fast, and good."
"Redpanda is developer-friendly, and we need to do much less configuration because Redpanda provides out-of-the-box configuration for us."
"Aside from its lightweight design, Redpanda is essentially a clone of Kafka with all the good features of Kafka, with the only difference being that Kafka needs too many resources while Redpanda is a very good, lightweight, and very fast database."
"Through a lot of benchmarks and whatnot, we found out that on a larger scale, when the latency of the messages is important, not talking about throughput, the latency is important, Redpanda offers a way better latency profile than Apache Kafka."
"I think Redpanda will dominate the market in the future, and it will be a really strong contender regarding streaming and AI."
"What makes Redpanda superior is its performance since it's written in C++, which is pretty much the standard for high-performance applications."
"The good part about Redpanda is that there is a free part, which is great, and it is embedding most Kafka features so you have a number of features similar to Confluent but for free, which is great."
 

Cons

"Failure is another area where it is a bit rigid or not that flexible."
"Apache Flink is very powerful, but it can be challenging for beginners because it requires prior experience with similar tools and technologies, such as Kafka and batch processing."
"In terms of improvement, there should be better reporting. You can integrate with reporting solutions but Flink doesn't offer it themselves."
"The TimeWindow feature is a bit tricky. The timing of the content and the windowing is a bit changed in 1.11. They have introduced watermarks. A watermark is basically associating every data with a timestamp. The timestamp could be anything, and we can provide the timestamp. So, whenever I receive a tweet, I can actually assign a timestamp, like what time did I get that tweet. The watermark helps us to uniquely identify the data. Watermarks are tricky if you use multiple events in the pipeline. For example, you have three resources from different locations, and you want to combine all those inputs and also perform some kind of logic. When you have more than one input screen and you want to collect all the information together, you have to apply TimeWindow all. That means that all the events from the upstream or from the up sources should be in that TimeWindow, and they were coming back. Internally, it is a batch of events that may be getting collected every five minutes or whatever timing is given. Sometimes, the use case for TimeWindow is a bit tricky. It depends on the application as well as on how people have given this TimeWindow. This kind of documentation is not updated. Even the test case documentation is a bit wrong. It doesn't work. Flink has updated the version of Apache Flink, but they have not updated the testing documentation. Therefore, I have to manually understand it. We have also been exploring failure handling. I was looking into changelogs for which they have posted the future plans and what are they going to deliver. We have two concerns regarding this, which have been noted down. I hope in the future that they will provide this functionality. Integration of Apache Flink with other metric services or failure handling data tools needs some kind of update or its in-depth knowledge is required in the documentation. We have a use case where we want to actually analyze or get analytics about how much data we process and how many failures we have. For that, we need to use Tomcat, which is an analytics tool for implementing counters. We can manage reports in the analyzer. This kind of integration is pretty much straightforward. They say that people must be well familiar with all the things before using this type of integration. They have given this complete file, which you can update, but it took some time. There is a learning curve with it, which consumed a lot of time. It is evolving to a newer version, but the documentation is not demonstrating that update. The documentation is not well incorporated. Hopefully, these things will get resolved now that they are implementing it. Failure is another area where it is a bit rigid or not that flexible. We never use this for scaling because complexity is very high in case of a failure. Processing and providing the scaled data back to Apache Flink is a bit challenging. They have this concept of offsetting, which could be simplified."
"One way to improve Flink would be to enhance integration between different ecosystems."
"One way to improve Flink would be to enhance integration between different ecosystems. For example, there could be more integration with other big data vendors and platforms similar in scope to how Apache Flink works with Cloudera. Apache Flink is a part of the same ecosystem as Cloudera, and for batch processing it's actually very useful but for real-time processing there could be more development with regards to the big data capabilities amongst the various ecosystems out there."
"Apache Flink's documentation should be available in more languages."
"Apache Flink should improve its data capability and data migration."
"We had one incident that we concluded was a case of memory leak."
"Redpanda can be improved as the support they provide for BYOC could be better."
"Recently, for the documentation, they've built their own AI chatbot, which is focused on giving you answers based on their documentation. While using that, I did not find it to be very good."
"The command-line tools need to be improved. To quickly check the status of the topics and all."
"One area for improvement is providing more examples."
"Redpanda can be improved in several ways, and the more I experiment with the product, the more limitations I find."
"Redpanda needs more visibility and primarily greater access to documentation."
"I think Redpanda needs to increase the connector options."
 

Pricing and Cost Advice

"This is an open-source platform that can be used free of charge."
"It's an open source."
"Apache Flink is open source so we pay no licensing for the use of the software."
"It's an open-source solution."
"The solution is open-source, which is free."
"It's free. Everybody can use it, only support is paid."
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Top Industries

By visitors reading reviews
Financial Services Firm
16%
Retailer
15%
Computer Software Company
7%
Manufacturing Company
6%
Financial Services Firm
16%
Comms Service Provider
13%
Outsourcing Company
9%
Manufacturing Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business5
Midsize Enterprise3
Large Enterprise12
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise1
Large Enterprise4
 

Questions from the Community

What needs improvement with Apache Flink?
Apache could improve Apache Flink by providing more functionality, as they need to fully support data integration. The connectors are still very few for Apache Flink. There is a lack of functionali...
What is your primary use case for Apache Flink?
I am working with Apache Flink, which is the tool we use for data integration. Apache Flink is for data, and we are working on the data integration project, not big data, using Apache Flink and Apa...
What advice do you have for others considering Apache Flink?
We are not using Apache Flink in its advanced window capabilities. We are using the Apache Flink job in Apache SeaTunnel, meaning we can write the code inside Apache SeaTunnel. Currently, we are mo...
What is your experience regarding pricing and costs for Redpanda?
Regarding my experience with pricing, setup cost, and licensing for Redpanda, I am exploring the product. If I am convinced about the product and the capabilities, and I am sure I will be because I...
What needs improvement with Redpanda?
Redpanda can be improved in several ways, and the more I experiment with the product, the more limitations I find. I understand that this is about business, and the product should grow, and they ha...
What is your primary use case for Redpanda?
My main use case for Redpanda is primarily for streaming, and I am currently focusing on building data lakehouses because I find them really interesting. Redpanda fits into my data lakehouse setup ...
 

Comparisons

 

Also Known As

Flink
No data available
 

Overview

 

Sample Customers

LogRhythm, Inc., Inter-American Development Bank, Scientific Technologies Corporation, LotLinx, Inc., Benevity, Inc.
Information Not Available
Find out what your peers are saying about Apache Flink vs. Redpanda and other solutions. Updated: September 2026.
920,769 professionals have used our research since 2012.