Install by RPM Package (Red Hat Linux)
This article explains how to install the
td-agent rpm package, the stable Fluentd distribution package maintained by Treasure Data, Inc.Fluentd is written in Ruby for flexibility, with performance-sensitive parts in C. However, some users may have difficulty installing and operating a Ruby daemon.
That is why Treasure Data, Inc provides the stable distribution of Fluentd, called
td-agent. The differences between Fluentd and td-agent can be found here.Our Calyptia also knows that Fluentd is written in Ruby for flexibility, with performance-sensitive parts in C. However, some users may have difficulty installing and operating a Ruby daemon. And
td-agent is still seated on Ruby 2.7 due to compatibility reasons and Ruby versioning policy, calyptia-fluentd uses Ruby 3 instead of Ruby 2.7 for now.That is why Calyptia, Inc. provides the alternative stable distribution of Fluentd, called
calyptia-fluentd. The differences between td-agent and calyptia-fluentd are bundled and running Ruby versions for now.This installation guide is for
td-agent v3/v4 and calyptia-fluentd v1. td-agent v3/v4 and calyptia-fluentd use fluentd v1 in the core. See this page for the comparison and supported OS.It is highly recommended to set up
ntpd on the node to prevent invalid timestamps in the logs. See Pre-installation Guide.Download and execute the install script with
curl:# td-agent 4
$ curl -L https://toolbelt.treasuredata.com/sh/install-redhat-td-agent4.sh | sh
# td-agent 3
$ curl -L https://toolbelt.treasuredata.com/sh/install-redhat-td-agent3.sh | sh
Executing this script will automatically install
td-agent on your machine. This shell script registers a new rpm repository at /etc/yum.repos.d/td.repo and installs td-agent.We use
$releasever for repository path in the script and $releasever should be the major version only like "7". If your environment uses some other format like "7.2", change it to the major version only or set up TD repository manually.For Amazon Linux 2:
# td-agent 4
$ curl -L https://toolbelt.treasuredata.com/sh/install-amazon2-td-agent4.sh | sh
# td-agent 3
$ curl -L https://toolbelt.treasuredata.com/sh/install-amazon2-td-agent3.sh | sh
td-agent provides two (2) scripts:Use
/usr/lib/systemd/system/td-agent script 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 (/usr/lib/systemd/system/td-agent.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2022-09-27 06:14:36 UTC; 1s ago
Docs: https://docs.treasuredata.com/display/public/PD/About+Treasure+Data%27s+Server-Side+Agent
Process: 33953 ExecStart=/opt/td-agent/bin/fluentd --log $TD_AGENT_LOG_FILE --daemon /var/run/td-agent/td-agent.pid $TD_AGENT_OPTIONS (code=exited, status=0>
Main PID: 33959 (fluentd)
Tasks: 10 (limit: 4958)
Memory: 78.1M
CGroup: /system.slice/td-agent.service
├─33959 /opt/td-agent/bin/ruby /opt/td-agent/bin/fluentd --log /var/log/td-agent/td-agent.log --daemon /var/run/td-agent/td-agent.pid
└─33962 /opt/td-agent/bin/ruby -Eascii-8bit:ascii-8bit /opt/td-agent/bin/fluentd --log /var/log/td-agent/td-agent.log --daemon /var/run/td-agent/td>
To customize
systemd behavior, put your td-agent.service in /etc/systemd/system.NOTE: In
td-agent 4, the path is different i.e. /opt/td-agent/bin instead of /opt/td-agent/embedded/bin.This is for CentOS 6, non-
systemd based system.Use
/etc/init.d/td-agent script to start, stop, or restart the agent:$ sudo /etc/init.d/td-agent start
Starting td-agent: [ OK ]
$ 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 path is:
/etc/td-agent/td-agent.conf
The default configuration (
/etc/td-agent/td-agent.conf) is to receive logs at an HTTP endpoint and route them to stdout. For td-agent logs, see /var/log/td-agent/td-agent.log.You can post sample log records with
curl command:$ curl -X POST -d 'json={"json":"message"}' http://localhost:8888/debug.test
$ tail -n 1 /var/log/td-agent/td-agent.log
2018-01-01 17:51:47 -0700 debug.test: {"json":"message"}
It is highly recommended to set up
ntpd on the node to prevent invalid timestamps in the logs. See Pre-installation Guide.Download and execute the install script with
curl:# calyptia-fluentd 1
$ curl -L https://calyptia-fluentd.s3.us-east-2.amazonaws.com/calyptia-fluentd-1-redhat.sh | sh
Executing this script will automatically install
calyptia-fluentd on your machine. This shell script registers a new rpm repository at /etc/yum.repos.d/Calyptia-Fluentd.repo and installs calyptia-fluentd.We use
$releasever for repository path in the script and $releasever should be the major version only like "7". If your environment uses some other format like "7.2", change it to the major version only or set up TD repository manually.For CentOS Stream 8:
# calyptia-fluentd 1
$ curl -L https://calyptia-fluentd.s3.us-east-2.amazonaws.com/calyptia-fluentd-1-centos-stream.sh
For Amazon Linux 2:
# calyptia-fluentd 1
$ curl -L https://calyptia-fluentd.s3.us-east-2.amazonaws.com/calyptia-fluentd-1-amazon-2.sh | sh
calyptia-fluentd only provides systemd's unit file:Use
/usr/lib/systemd/system/calyptia-fluentd script to start, stop, or restart the agent:$ sudo systemctl start calyptia-fluentd.service
$ sudo systemctl status calyptia-fluentd.service
● calyptia-fluentd.service - calyptia-fluentd: Fluentd based data collector for Calyptia Services
Loaded: loaded (/usr/lib/systemd/system/calyptia-fluentd.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2021-05-31 01:37:47 UTC; 4h 38min ago
Docs: https://docs.fluentd.org/
Process: 694 ExecStart=/opt/calyptia-fluentd/bin/fluentd --log $CALYPTIA_FLUENTD_LOG_FILE --daemon /var/run/calyptia-fluentd/calyptia-fluentd.pid $CALYPTIA_FLUENTD_OPTIONS (code=exited, status=0/SUCCESS)
Main PID: 1365 (fluentd)
CGroup: /system.slice/calyptia-fluentd.service
├─1365 /opt/calyptia-fluentd/bin/ruby /opt/calyptia-fluentd/bin/fluentd --log /var/log/calyptia-fluentd/calyptia-fluentd.log --daem...
└─1368 /opt/calyptia-fluentd/bin/ruby -Eascii-8bit:ascii-8bit /opt/calyptia-fluentd/bin/fluentd --log /var/log/calyptia-fluentd/cal...
To customize
systemd behavior, put your calyptia-fluentd.service in /etc/systemd/system.Please make sure your configuration file path is:
/etc/calyptia-fluentd/calyptia-fluentd.conf
The default configuration (
/etc/calyptia-fluentd/calyptia-faluentd.conf) is to receive logs at an HTTP endpoint and route them to stdout. For calyptia-fluentd logs, see /var/log/calyptia-fluentd/calyptia-fluentd.log.You can post sample log records with
curl command:$ curl -X POST -d 'json={"json":"message"}' http://localhost:8888/debug.test
$ sudo tail -n 1 /var/log/calyptia-fluentd/calyptia-fluentd.log
2021-05-31 06:19:04.415878392 +0000 debug.test: {"json":"message"}
You are now ready to collect real logs with Fluentd. Refer to the following tutorials on how to collect data from various sources:
- Basic Configuration
For further steps, follow these:
If this article is incorrect or outdated, or omits critical information, please let us know. Fluentd is an open-source project under Cloud Native Computing Foundation (CNCF). All components are available under the Apache 2 License.
Last modified 3mo ago