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Installation

gem install fluentd
Install Fluentd using Ruby Gems

td-agent-gem install
Install plugins in td-agent (enterprise version)

fluent-gem install
Install plugins in OSS version

Configuration

fluentd -c /path/to/config.conf
Start Fluentd with a specific configuration file

fluentd --dry-run -c /path/to/config.conf
Check configuration file syntax without starting

fluentd -s /path/to/config.conf
Show configuration file after parsing

Service Management

systemctl start td-agent
Start the td-agent service

systemctl stop td-agent
Stop the td-agent service

systemctl restart td-agent
Restart the td-agent service

systemctl status td-agent
Check the status of td-agent service

Logging and Debugging

tail -f /var/log/td-agent/td-agent.log
View live td-agent logs

fluentd -v
Display Fluentd version

fluentd -vv
Display verbose debug information

Plugin Management

fluent-gem list
List all installed Fluentd plugins

fluent-gem install fluent-plugin-
Install a specific plugin

fluent-gem uninstall fluent-plugin-
Remove a specific plugin

Testing

curl -X POST -d 'json={"message":"test"}' http://localhost:8888/
Send a test message to Fluentd HTTP input

echo '{"message":"test"}' | fluent-cat
Send a test message using fluent-cat command