The Fluent::Logger library is used to post records from Perl applications to Fluentd.
This article explains how to use it.
- Basic knowledge of Perl
- Basic knowledge of Fluentd
- Perl 5.10 or higher
Please refer to the following document to install Fluentd:
Configure Fluentd to use the forward input plugin as its data source:
<source>
@type forward
port 24224
</source>
<match fluentd.test.**>
@type stdout
</match>
Restart agent after configuring.
# for rpm/deb only
$ sudo /etc/init.d/td-agent restart
# or systemd
$ sudo systemctl restart td-agent.service
Install Fluent::Logger library via CPAN:
$ cpan
cpan[1]> install Fluent::Logger
Create a script to post the records:
# test.pl
use Fluent::Logger;
my $logger = Fluent::Logger->new(
host => '127.0.0.1',
port => 24224,
tag_prefix => 'fluentd.test',
);
$logger->post("follow", { "entry1" => "value1", "entry2" => 2 });
Executing the script will send the logs to Fluentd:
$ perl test.pl
The logs should be output to /var/log/td-agent/td-agent.log or the standard output of the Fluentd process via stdout output plugin.
Various output plugins are available for writing records to other destinations:
- Examples
- List of Plugin References
For high-traffic websites (more than 5 application nodes), we recommend using the high-availability configuration for td-agent. This will improve the reliability of data transfer and query performance.
Monitoring Fluentd itself is also important. The article below describes the general monitoring methods for td-agent.
If this article is incorrect or outdated, or omits critical information, please let us know.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.