Install by DEB Package (Debian/Ubuntu)

This article explains how to install the td-agent deb package, the stable Fluentd distribution package maintained by Treasure Data, Inc.

What is td-agent?

Fluentd is written in Ruby for flexibility, with performance sensitive parts written in C. However, some users may have difficulty installing and operating a Ruby daemon.

That's why Treasure Data, Inc is providing the stable distribution of Fluentd, called td-agent. The differences between Fluentd and td-agent can be found here.

This installation guide is for td-agent v3, the new stable version. td-agent v3 uses fluentd v1.0 in the core. See this page for the comparison between v2 and v3.

Step 0: Before Installation

Please follow the Preinstallation Guide to configure your OS properly. This will prevent many unnecessary problems.

Step 1: Install from Apt Repository

For Ubuntu, we currently support "Ubuntu 18.04 LTS / Bionic 64bit", "Ubuntu 16.04 LTS / Xenial 64bit", "Ubuntu 14.04 LTS / Trusty 64bit". For Debian, we currently provide "Debian 10 Buster 64bit", "Debian 9 Stretch 64bit", "Debian 8 Jessie 64bit".

Note: If td-agent doesn't support your OS, consider gem installation instead.

Note: treasure data doesn't verify debian packages. If you have a problem with debian packages, send a patch to omnibus-td-agent repository.

A shell script is provided to automate the installation process for each version. The shell script registers a new apt repository at /etc/apt/sources.list.d/treasure-data.list and installs the td-agent deb package.

For Ubuntu Bionic,

curl -L | sh

For Ubuntu Xenial,

curl -L | sh

For Ubuntu Trusty,

curl -L | sh

For Debian Buster,

curl -L | sh

For Debian Stretch,

curl -L | sh

For Debian Jessie,

curl -L | sh

It's HIGHLY recommended that you set up ntpd on the node to prevent invalid timestamps in your logs. Please check the Preinstallation Guide.

Step 2: Launch Daemon


The /lib/systemd/system/td-agent script is provided to start, stop, or restart the agent.

$ sudo systemctl start td-agent.service
$ sudo systemctl status td-agent.service
● td-agent.service - td-agent: Fluentd based data collector for Treasure Data
Loaded: loaded (/lib/systemd/system/td-agent.service; disabled; vendor preset: enabled)
Active: active (running) since Thu 2017-12-07 15:12:27 PST; 6min ago
Process: 53192 ExecStart = /opt/td-agent/embedded/bin/fluentd --log /var/log/td-agent/td-agent.log --daemon /var/run/td-agent/ (code = exited, statu
Main PID: 53198 (fluentd)
CGroup: /system.slice/td-agent.service
├─53198 /opt/td-agent/embedded/bin/ruby /opt/td-agent/embedded/bin/fluentd --log /var/log/td-agent/td-agent.log --daemon /var/run/td-agent/td-agent
└─53203 /opt/td-agent/embedded/bin/ruby -Eascii-8bit:ascii-8bit /opt/td-agent/embedded/bin/fluentd --log /var/log/td-agent/td-agent.log --daemon /v
Dec 07 15:12:27 ubuntu systemd[1]: Starting td-agent: Fluentd based data collector for Treasure Data...
Dec 07 15:12:27 ubuntu systemd[1]: Started td-agent: Fluentd based data collector for Treasure Data.

If you want to customize systemd behaviour, put your td-agent.service into /etc/systemd/system


The /etc/init.d/td-agent script is provided to start, stop, or restart the agent.

$ sudo /etc/init.d/td-agent restart
$ sudo /etc/init.d/td-agent status
td-agent (pid 21678) is running...

The following commands are supported:

$ sudo /etc/init.d/td-agent start
$ sudo /etc/init.d/td-agent stop
$ sudo /etc/init.d/td-agent restart
$ sudo /etc/init.d/td-agent status

Please make sure your configuration file is located at /etc/td-agent/td-agent.conf.

Step 3: Post Sample Logs via HTTP

By default, /etc/td-agent/td-agent.conf is configured to take logs from HTTP and route them to stdout (/var/log/td-agent/td-agent.log). You can post sample log records using the curl command.

$ curl -X POST -d 'json={"json":"message"}' http://localhost:8888/debug.test

Next Steps

You're now ready to collect your real logs using Fluentd. Please see the following tutorials to learn how to collect your data from various data sources.

Please refer to the resources below for further steps.

If this article is incorrect or outdated, or omits critical information, please let us know. Fluentd is a open source project under Cloud Native Computing Foundation (CNCF). All components are available under the Apache 2 License.