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Fluentd VS Kafka

Compare Fluentd VS Kafka and see what are their differences

Fluentd logo Fluentd

Fluentd is a cross platform open source data collection solution originally developed at Treasure Data.

Kafka logo Kafka

Apache Kafka is publish-subscribe messaging rethought as a distributed commit log.
  • Fluentd Landing page
    Landing page //
    2018-09-30
  • Kafka Landing page
    Landing page //
    2022-12-24

Fluentd features and specs

  • Open Source
    Fluentd is an open-source data collector, meaning it is free to use and has a large community of contributors and users who can provide support and plugins.
  • Unified Logging Layer
    It provides a unified logging layer that can collect, filter, and distribute logs from various sources to various destinations, simplifying log management.
  • Extensibility
    Fluentd supports a wide range of plugins for inputs, outputs, filters, and parsers, making it highly extensible and customizable to fit specific needs.
  • High Performance
    It is designed to be high-performance and can handle large volumes of logs efficiently, which is crucial for enterprise environments.
  • Flexible Configuration
    Fluentd offers flexible and straightforward configuration, allowing users to define complex data pipelines with relative ease.
  • Support for Multiple Environments
    Fluentd supports cloud, on-premises, and hybrid environments, making it versatile for various deployment scenarios.

Possible disadvantages of Fluentd

  • Complexity
    The flexibility and extensibility of Fluentd can introduce complexity, requiring a steep learning curve for new users to master the tool.
  • Resource Intensive
    Fluentd can be resource-intensive, especially when dealing with large volumes of data, which may require robust infrastructure.
  • Plugin Compatibility
    While there are many plugins available, not all of them are always up-to-date or compatible with the latest versions of Fluentd, potentially causing integration issues.
  • Maintenance Overhead
    Managing Fluentd involves continuous monitoring, updating, and maintenance to ensure optimal performance and security, which could be resource-draining.
  • Documentation Gaps
    Although there is extensive documentation, some users report that it lacks deep insights and examples for advanced configurations, requiring additional research and community support.

Kafka features and specs

  • High Throughput
    Apache Kafka is capable of handling a large volume of data with very low latency, making it ideal for real-time data processing applications.
  • Scalability
    Kafka can effortlessly scale out by adding more brokers to a cluster, allowing it to handle increased data loads.
  • Fault Tolerance
    Kafka offers built-in replication and fault tolerance, ensuring that data is not lost even if some brokers or nodes fail.
  • Durability
    Messages in Kafka are persistently stored on disk, providing durability and data recovery capabilities in case of failures.
  • Stream Processing
    Kafka, along with Kafka Streams, offers powerful stream processing capabilities, allowing real-time data transformation and processing.
  • Ecosystem
    Kafka has a rich ecosystem that includes Kafka Connect for data integration, Kafka Streams for stream processing, and many other tools that make it easier to work with data.
  • Language Support
    Kafka clients are available in multiple programming languages, providing flexibility in choosing the technology stack for your project.

Possible disadvantages of Kafka

  • Complexity
    Setting up and managing a Kafka cluster can be complex, requiring expertise in distributed systems and careful configuration.
  • Resource Intensive
    Kafka can be resource-intensive, requiring significant memory and CPU resources, especially at scale.
  • Operational Overhead
    Maintaining Kafka clusters involves considerable operational overhead, including monitoring, tuning, and managing brokers and partitions.
  • Data Ordering
    While Kafka guarantees ordering within a partition, maintaining total order across a topic with multiple partitions can be challenging.
  • Latency
    In certain use-cases, such as strict low-latency requirements, Kafka’s design might introduce higher latency as compared to some specialized messaging systems.
  • Learning Curve
    Kafka has a steep learning curve, which might make it harder for new developers to get started quickly.
  • Data Storage
    Despite Kafka’s durability features, large volumes of data storage can become costly and need careful management to avoid sluggish performance.

Fluentd videos

How-to Ship Logs to Grafana Loki with Promtail, FluentD & Fluent-bit

More videos:

  • Review - OpenShift Commons Briefing #72: Cloud Native Logging with Fluentd
  • Review - Fluentd, the Open Source Data Collection tool

Kafka videos

Franz Kafka - In The Penal Colony BOOK REVIEW

More videos:

  • Review - LITERATURE: Franz Kafka
  • Review - The Trial (Franz Kafka) – Thug Notes Summary & Analysis

Category Popularity

0-100% (relative to Fluentd and Kafka)
Monitoring Tools
100 100%
0% 0
Log Management
69 69%
31% 31
Analytics
0 0%
100% 100
Security & Privacy
100 100%
0% 0

User comments

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Reviews

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

Fluentd Reviews

11 Best Splunk Alternatives
The CloudFront-log plugin, for example, can be used to ingest logs from Amazon CloudFront, while the elasticsearch plugin can be used to route logs to Elasticsearch. Fluentd only provides ingestion and routing services, so you'll have to develop your log management solution from the ground up. Fluentd has become a popular alternative to Logstash, transforming ELK into EFK....
Top 15 Kafka Alternatives Popular In 2021
Inputs and outputs have inbuilt support to buffer, load balance, timeout and retry instances. It has a unified logging layer in between the data sources. There are over 5000+ companies that rely on Fluentd and approximately collect logs from over 50000+ servers. It scraps logs from sources and sends them across to services like object storage, Elasticsearch, etc. it is...
Best Log Management Tools: Useful Tools for Log Management, Monitoring, Analytics, and More
Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. Fluentd helps you unify your logging infrastructure. Fluentd’s flagship feature is an extensive library of plugins which provide extended support and functionality for anything related to log and data management within a concise developer environment.
Source: stackify.com

Kafka Reviews

6 Best Kafka Alternatives: 2022’s Must-know List
In this article, you learned about Kafka, its features, and some top Kafka Alternatives. Even though Kafka is widely used, the technology segment has advanced to the point where other options can overshadow Kafka’s cons. There are various options available for choosing a stream processing solution. Organizations are increasingly embracing event-driven architectures powered...
Source: hevodata.com

What are some alternatives?

When comparing Fluentd and Kafka, you can also consider the following products

logstash - logstash is a tool for managing events and logs.

Sentry.io - From error tracking to performance monitoring, developers can see what actually matters, solve quicker, and learn continuously about their applications - from the frontend to the backend.

rsyslog - Rsyslog is an enhanced syslogd supporting, among others, MySQL, PostgreSQL, failover log...

Raygun - Raygun gives developers meaningful insights into problems affecting their applications. Discover issues - Understand the problem - Fix things faster.

Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.

Snare - Snare is well known historically as a leader in the event log space.