https://github.com/fluent/fluentd

Fluentd: Unified Logging Layer (project under CNCF)
https://github.com/fluent/fluentd

Keywords

cncf data-collector fluentd logging ruby

Keywords from Contributors

activerecord activejob mvc fluentd-plugin rubygems msgpack crash-reporting ruby-gem rack sinatra

Last synced: about 10 hours ago
JSON representation

Repository metadata

Fluentd: Unified Logging Layer (project under CNCF)

Host: GitHub
URL: https://github.com/fluent/fluentd
Owner: fluent
License: apache-2.0
Created: 2011-06-19T08:41:40.000Z (almost 15 years ago)
Default Branch: master
Last Pushed: 2026-06-08T02:01:33.000Z (8 days ago)
Last Synced: 2026-06-08T17:04:26.859Z (8 days ago)
Topics: cncf, data-collector, fluentd, logging, ruby
Language: Ruby
Homepage: https://www.fluentd.org
Size: 19.9 MB
Stars: 13,548
Watchers: 326
Forks: 1,391
Open Issues: 135
Releases: 24
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: code-of-conduct.md
- Security: SECURITY.md
- Governance: GOVERNANCE.md
- Authors: AUTHORS
- Maintainers: MAINTAINERS.md

Fluentd: Open-Source Log Collector

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 (Learn more about the Unified Logging Layer).

Quick Start

$ gem install fluentd
$ fluentd -s conf
$ fluentd -c conf/fluent.conf &
$ echo '{"json":"message"}' | fluent-cat debug.test

Development

Branch

master: For v1 development.
v0.12: For v0.12. This is deprecated version. we already stopped supporting (See https://www.fluentd.org/blog/drop-schedule-announcement-in-2019).

Prerequisites

Ruby 3.2 or later
git

git should be in PATH. On Windows, you can use Github for Windows and GitShell for easy setup.

Install dependent gems

Use bundler:

$ gem install bundler
$ bundle install --path vendor/bundle

Run test

$ bundle exec rake test

You can run specified test via TEST environment variable:

$ bundle exec rake test TEST=test/test_specified_path.rb
$ bundle exec rake test TEST=test/test_*.rb

More Information

Website: https://www.fluentd.org/
Documentation: https://docs.fluentd.org/
Project repository: https://github.com/fluent
Discussion: https://github.com/fluent/fluentd/discussions
Slack / Community: https://slack.fluentd.org
Newsletters: https://www.fluentd.org/newsletter
Author: Sadayuki Furuhashi
Copyright: 2011-2021 Fluentd Authors
License: Apache License, Version 2.0

Security

A third party security audit was performed by Cure53, you can see the full report here.

See SECURITY to contact us about vulnerability.

Contributors:

Patches contributed by great developers.

Owner metadata

Name: Fluentd: Unified Logging Layer
Login: fluent
Email:
Kind: organization
Description: Fluentd is a cloud native logging solution to unify data collection and consumption.
Website: http://www.fluentd.org/
Location: Cloud Native Computing Foundation
Twitter:
Company:
Icon url: https://avatars.githubusercontent.com/u/859518?v=4
Repositories: 89
Last ynced at: 2023-04-10T10:21:17.081Z
Profile URL: https://github.com/fluent

GitHub Events

Total

Release event: 6
Delete event: 160
Pull request event: 573
Fork event: 51
Discussion event: 5
Issues event: 178
Watch event: 547
Issue comment event: 714
Push event: 368
Gollum event: 18
Pull request review comment event: 289
Pull request review event: 607
Create event: 154

Last Year

Release event: 2
Delete event: 66
Pull request event: 183
Fork event: 14
Discussion event: 5
Issues event: 72
Watch event: 168
Issue comment event: 172
Push event: 143
Pull request review comment event: 51
Gollum event: 8
Pull request review event: 158
Create event: 67

Committers metadata

Last synced: 3 days ago

Total Commits: 5,548
Total Committers: 282
Avg Commits per committer: 19.674
Development Distribution Score (DDS): 0.828

Commits in past year: 181
Committers in past year: 15
Avg Commits per committer in past year: 12.067
Development Distribution Score (DDS) in past year: 0.591

Name	Email	Commits
TAGOMORI Satoshi	t**s@g**m	952
Masahiro Nakagawa	r**y@g**m	929
Yuta Iwama	g**s@g**m	613
Hiroshi Hatake	h**e@c**m	414
Kenji Okimoto	o**o@c**m	398
FURUHASHI Sadayuki	f**i@u**p	359
Takuro Ashie	a**e@c**m	323
Daijiro Fukuda	f**a@c**m	178
dependabot[bot]	4****]	137
Shizuo Fujita	f**a@c**m	125
Kentaro Hayashi	h**i@c**m	118
Yuki Ito	y**i@g**t	87
sonots	s**s@g**m	77
okahashi117	n**i@j**p	66
NARUSE, Yui	n**e@a**p	46
Kiyoto	me@k****m	24
Fujimoto Seiji	f**o@c**m	23
Fujimoto Seiji	f**o@c**t	23
Kazuki Ohta	k**a@g**m	23
Masahiro Sano	s**a@g**m	21
Eduardo Silva	e**o@t**m	18
abetomo	a**e@e**o	16
Ryuma Yoshida	r**7@g**m	16
abicky	t**i@g**m	14
Yuichi TANIKAWA	t**1@g**m	13
Christian Menges	c**s@o**m	12
Ritta Narita	n**n@g**m	12
Yuichi Tateno	h**h@g**m	11
Kentaro Kuribayashi	k**k@g**m	11
Šimon Lukašík	i**k@f**g	10
and 252 more...

Committer domains:

Issue and Pull Request metadata

Last synced: 3 days ago

Total issues: 353
Total pull requests: 878
Average time to close issues: 9 months
Average time to close pull requests: 15 days
Total issue authors: 260
Total pull request authors: 49
Average comments per issue: 4.35
Average comments per pull request: 1.78
Merged pull request: 684
Bot issues: 0
Bot pull requests: 199

Past year issues: 39
Past year pull requests: 153
Past year average time to close issues: 16 days
Past year average time to close pull requests: 1 day
Past year issue authors: 26
Past year pull request authors: 21
Past year average comments per issue: 3.36
Past year average comments per pull request: 0.76
Past year merged pull request: 98
Past year bot issues: 0
Past year bot pull requests: 63

More stats: https://issues.ecosyste.ms/repositories/lookup?url=https://github.com/fluent/fluentd

Top Issue Authors

Watson1978 (25)
daipom (22)
tagomoris (6)
khteh (6)
ashie (5)
kenhys (4)
deepaksb2 (4)
mlasevich (3)
Garfield96 (3)
RamHaridas (3)
qingling128 (3)
harshitasao (3)
cosmo0920 (3)
LukasJerabek (2)
amanmahajan26 (2)

Top Pull Request Authors

daipom (199)
dependabot[bot] (192)
Watson1978 (183)
kenhys (162)
ashie (35)
Athishpranav2003 (11)
cosmo0920 (9)
github-actions[bot] (7)
repeatedly (6)
egemenkus (6)
isimluk (5)
Garfield96 (5)
orgads (4)
yugeeklab (4)
harshitasao (3)

Top Issue Labels

waiting-for-triage (75)
enhancement (65)
bug (57)
stale (42)
waiting-for-user (38)
Non fluentd issue (18)
CI (15)
feature request (12)
work-in-progress (10)
memory (9)
v1 (5)
moreinfo (4)
v0.14 (3)
windows (3)
work_in_progress (2)
v2 (2)
good first issue (2)
pending (2)
document (1)
help wanted (1)
ipv6 (1)
plugin issue (1)

Top Pull Request Labels

dependencies (192)
github_actions (94)
CI (68)
backport to LTS (63)
backported (50)
enhancement (22)
backport to v1.19 (11)
bug (10)
stale (10)
pending (5)
moreinfo (2)
backport to v1.16 (1)
memory (1)

Package metadata

Total packages: 7
Total downloads:
- conda: 92,128 total
- rubygems: 123,470,593 total
Total docker downloads: 2,367,565,198
Total dependent packages: 1,194 (may contain duplicates)
Total dependent repositories: 3,045 (may contain duplicates)
Total versions: 1,172
Total maintainers: 10
Total advisories: 3

gem.coop: fluentd

Fluentd is an open source data collector designed to scale and simplify log management. It can collect, process and ship many kinds of data in near real-time.

Homepage: https://www.fluentd.org/
Documentation: http://www.rubydoc.info/gems/fluentd/
Licenses: Apache-2.0
Latest release: 1.19.2 (published 4 months ago)
Last Synced: 2026-06-14T20:02:57.939Z (1 day ago)
Versions: 428
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 61,723,089 Total
Docker Downloads: 1,183,782,599
Rankings:
- Dependent repos count: 0.0%
- Dependent packages count: 0.0%
- Docker downloads count: 0.075%
- Average: 0.134%
- Downloads: 0.46%
Maintainers (10)
- kenhys
- ganmacs
- tagomoris
- cosmo0920
- ashie
- daipom
- ceptord
- Watson
- frsyuki
- repeatedly

rubygems.org: fluentd

Fluentd is an open source data collector designed to scale and simplify log management. It can collect, process and ship many kinds of data in near real-time.

Homepage: https://www.fluentd.org/
Documentation: http://www.rubydoc.info/gems/fluentd/
Licenses: Apache-2.0
Latest release: 1.19.2 (published 4 months ago)
Last Synced: 2026-06-15T16:20:21.368Z (about 14 hours ago)
Versions: 428
Dependent Packages: 1,194
Dependent Repositories: 3,044
Downloads: 61,747,504 Total
Docker Downloads: 1,183,782,599
Rankings:
- Dependent packages count: 0.043%
- Docker downloads count: 0.099%
- Stargazers count: 0.101%
- Forks count: 0.17%
- Average: 0.233%
- Downloads: 0.419%
- Dependent repos count: 0.568%
Maintainers (10)
- kenhys
- ganmacs
- tagomoris
- daipom
- ceptord
- cosmo0920
- ashie
- frsyuki
- repeatedly
- Watson
Advisories:

proxy.golang.org: github.com/fluent/fluentd

Homepage:
Documentation: https://pkg.go.dev/github.com/fluent/fluentd#section-documentation
Licenses: apache-2.0
Latest release: v1.19.2 (published 4 months ago)
Last Synced: 2026-06-14T20:02:54.978Z (1 day ago)
Versions: 240
Dependent Packages: 0
Dependent Repositories: 1
Rankings:
- Stargazers count: 0.581%
- Forks count: 0.701%
- Average: 3.632%
- Dependent repos count: 4.79%
- Dependent packages count: 8.456%

conda-forge.org: rb-fluentd

Homepage: https://rubygems.org/gems/fluentd
Licenses: Apache-2.0
Latest release: 1.11.3 (published over 5 years ago)
Last Synced: 2026-04-01T16:12:14.562Z (3 months ago)
Versions: 16
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 92,128 Total
Rankings:
- Stargazers count: 2.336%
- Forks count: 3.903%
- Average: 22.86%
- Dependent repos count: 34.025%
- Dependent packages count: 51.175%

artifacthub.io: openstack-helm/fluentd

OpenStack-Helm Fluentd

Homepage: https://www.fluentd.org/
Documentation: https://artifacthub.io/packages/helm/openstack-helm/fluentd
Licenses: Unknown
Latest release: 0.1.2 (published about 5 years ago)
Last Synced: 2026-06-14T20:02:55.581Z (1 day ago)
Versions: 3
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 0 Total
Rankings:
- Downloads: 0.0%
- Dependent repos count: 0.0%
- Dependent packages count: 0.0%
- Average: 100%

artifacthub.io: fluent/fluentd

A Helm chart for Kubernetes

Homepage: https://www.fluentd.org/
Documentation: https://artifacthub.io/packages/helm/fluent/fluentd
Licenses: Unknown
Latest release: 0.5.3 (published about 1 year ago)
Last Synced: 2026-06-14T20:02:52.528Z (1 day ago)
Versions: 38
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 0 Total
Rankings:
- Downloads: 0.0%
- Dependent repos count: 0.0%
- Dependent packages count: 0.0%
- Average: 100%

artifacthub.io: helm/fluentd

A Helm chart for fluentd

Homepage: https://www.fluentd.org/
Documentation: https://artifacthub.io/packages/helm/helm/fluentd
Licenses: Unknown
Latest release: 0.2.16 (published about 4 years ago)
Last Synced: 2026-06-14T20:02:52.528Z (1 day ago)
Versions: 19
Dependent Packages: 0
Dependent Repositories: 0
Downloads: 0 Total
Rankings:
- Downloads: 0.0%
- Dependent repos count: 0.0%
- Dependent packages count: 0.0%
- Average: 100%

Dependencies

.github/workflows/test-ruby-head.yml actions

actions/checkout v3 composite
ruby/setup-ruby v1 composite

.github/workflows/test.yml actions

actions/checkout v3 composite
ruby/setup-ruby v1 composite

.github/workflows/stale-actions.yml actions

actions/stale v8 composite

Gemfile rubygems

fluentd.gemspec rubygems

async ~> 1.23 development
async-http >= 0.50.0 development
flexmock ~> 2.0 development
oj >= 2.14, < 4 development
parallel_tests ~> 0.15.3 development
rake ~> 13.0 development
rr ~> 3.0 development
simplecov ~> 0.7 development
test-unit ~> 3.3 development
test-unit-rr ~> 1.0 development
timecop ~> 0.9 development
bundler >= 0
certstore_c ~> 0.1.7
cool.io >= 1.4.5, < 2.0.0
http_parser.rb >= 0.5.1, < 0.9.0
msgpack >= 1.3.1, < 2.0.0
serverengine >= 2.3.2, < 3.0.0
sigdump ~> 0.2.5
strptime >= 0.2.4, < 1.0.0
tzinfo >= 1.0, < 3.0
tzinfo-data ~> 1.0
webrick ~> 1.4
win32-event ~> 0.6.3
win32-ipc ~> 0.7.0
win32-service ~> 2.3.0
yajl-ruby ~> 1.0

templates/new_gem/Gemfile rubygems

Score: 36.80182000354242