Fluentd vs Prometheus

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Fluentd

406
434
+ 1
22
Prometheus

2K
2.3K
+ 1
217
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Fluentd vs Prometheus: What are the differences?

What is Fluentd? Unified logging layer. 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.

What is Prometheus? An open-source service monitoring system and time series database, developed by SoundCloud. Prometheus is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts if some condition is observed to be true.

Fluentd can be classified as a tool in the "Log Management" category, while Prometheus is grouped under "Monitoring Tools".

Some of the features offered by Fluentd are:

  • Open source
  • Flexible
  • Minimum resources

On the other hand, Prometheus provides the following key features:

  • a multi-dimensional data model (timeseries defined by metric name and set of key/value dimensions)
  • a flexible query language to leverage this dimensionality
  • no dependency on distributed storage

Fluentd and Prometheus are both open source tools. Prometheus with 25K GitHub stars and 3.55K forks on GitHub appears to be more popular than Fluentd with 8.04K GitHub stars and 938 GitHub forks.

Uber Technologies, Slack, and DigitalOcean are some of the popular companies that use Prometheus, whereas Fluentd is used by 9GAG, Repro, and Geocodio. Prometheus has a broader approval, being mentioned in 243 company stacks & 85 developers stacks; compared to Fluentd, which is listed in 64 company stacks and 18 developer stacks.

Decisions about Fluentd and Prometheus
Leonardo Henrique da Silva Paixão

The objective of this work was to develop a system to monitor the materials of a production line using IoT technology. Currently, the process of monitoring and replacing parts depends on manual services. For this, load cells, microcontroller, Broker MQTT, Telegraf, InfluxDB, and Grafana were used. It was implemented in a workflow that had the function of collecting sensor data, storing it in a database, and visualizing it in the form of weight and quantity. With these developed solutions, he hopes to contribute to the logistics area, in the replacement and control of materials.

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Pros of Fluentd
Pros of Prometheus
  • 6
    Lightweight
  • 6
    Great for Kubernetes node container log forwarding
  • 6
    Open-source
  • 4
    Easy
  • 40
    Powerful easy to use monitoring
  • 38
    Flexible query language
  • 31
    Dimensional data model
  • 22
    Alerts
  • 21
    Active and responsive community
  • 18
    Easy to setup
  • 18
    Extensive integrations
  • 11
    Beautiful Model and Query language
  • 7
    Easy to extend
  • 6
    Nice
  • 3
    Written in Go
  • 1
    Good for experimentation
  • 1
    Easy for monitoring

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Cons of Fluentd
Cons of Prometheus
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    • 8
      Just for metrics
    • 5
      Needs monitoring to access metrics endpoints
    • 4
      Bad UI
    • 2
      Supports only active agents
    • 2
      Written in Go
    • 2
      Not easy to configure and use
    • 1
      Requires multiple applications and tools
    • 1
      TLS is quite difficult to understand

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    What is Fluentd?

    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.

    What is Prometheus?

    Prometheus is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts if some condition is observed to be true.

    Need advice about which tool to choose?Ask the StackShare community!

    What companies use Fluentd?
    What companies use Prometheus?

    Sign up to get full access to all the companiesMake informed product decisions

    What tools integrate with Fluentd?
    What tools integrate with Prometheus?

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    Blog Posts

    Dec 8 2020 at 5:50PM
    https://img.stackshare.io/company/93/8a444d2b7ec5dd7a4f3fc1819136e05178b964c8.png logo

    DigitalOcean

    GitHubMySQLMongoDB+11
    2
    1092
    May 21 2020 at 12:02AM
    https://img.stackshare.io/stack/650371/default_35848f736f9651e77452a8a4ce3c2c953360dedf.png logo

    Rancher Labs

    Amazon EC2KubernetesGrafana+12
    3
    1028
    PythonDockerAmazon S3+14
    11
    1862
    Node.jsnpmKubernetes+6
    1
    1048
    What are some alternatives to Fluentd and Prometheus?
    Logstash
    Logstash is a tool for managing events and logs. You can use it to collect logs, parse them, and store them for later use (like, for searching). If you store them in Elasticsearch, you can view and analyze them with Kibana.
    Splunk
    It provides the leading platform for Operational Intelligence. Customers use it to search, monitor, analyze and visualize machine data.
    collectd
    collectd gathers statistics about the system it is running on and stores this information. Those statistics can then be used to find current performance bottlenecks (i.e. performance analysis) and predict future system load (i.e. capacity planning). Or if you just want pretty graphs of your private server and are fed up with some homegrown solution you're at the right place, too.
    Filebeat
    It helps you keep the simple things simple by offering a lightweight way to forward and centralize logs and files.
    Elasticsearch
    Elasticsearch is a distributed, RESTful search and analytics engine capable of storing data and searching it in near real time. Elasticsearch, Kibana, Beats and Logstash are the Elastic Stack (sometimes called the ELK Stack).
    See all alternatives
    Interest over time