Treasure Data provides td-agent to collect server-side logs and events and to seamlessly import the data from Perl applications.
Continue to the following topics:
Basic knowledge of Perl and CPAN.
Basic knowledge of Treasure Data, including the latest installed version of the TD Toolbelt.
Perl 5.10 or higher (for local testing).
td-agenton your application servers. td-agent sits within your application servers, focusing on uploading application logs to the cloud.
The fluent-logger-perl library enables Perl applications to post records to their local td-agent. td-agent, in turn, uploads the data to the cloud every 5 minutes. Because the daemon runs on a local node, the logging latency is negligible.
td-agent Install Options
td-agent, run one of the following commands based on your environment. The agent program is installed automatically when you use the package management software for each platform like rpm/deb/dmg.
Ubuntu and Debian
Legacy support for EOL versions is still available
You can choose Amazon Linux 1 or Amazon Linux 2. Refer to Installing td-agent on Amazon Linux.
MacOS X 10.11+
MacOS X 10.11.1 (El Capitan) introduces some security changes. After the td-agent is installed, edit the /Library/LaunchDaemons/td-agent.plist file to change /usr/sbin/td-agent to /opt/td-agent/usr/sbin/td-agent.
Windows Server 2012+
The Windows installation requires the steps detailed in:
Opscode Chef Repository
AWS Elastic Beanstalk is also supported. Windows is currently NOT supported.
Specify your API key by setting thee your API key by setting the
apikey option. You can view your API key from your profiles in TD Console. Set the
apikey option in your td-agent.conf file.
YOUR_API_KEY should be your actual apikey string. Using a [write-only API key](access-control#rest-apis-access) is recommended.
Restart your agent when the following lines are in place.
td-agent now accepts data via port 24224, buffers the data (var/log/td-agent/buffer/td), and automatically upload the data into the cloud.
First, install the Fluent::Logger library via CPAN.
Next, initialize and post the records as follows.
Confirming Data Import
First, execute the preceding program.
Sending a SIGUSR1 signal flushed td-agent’s buffer. Upload starts immediately.
To confirm that your data has been uploaded successfully, issue the td tables command as follows:
The first argument of post() determines the database name and table name. If you specify `td.test_db.test_table`, the data is imported into the table *test_table* within the database *test_db*. They are automatically created at upload time.
High-Availability Configurations of td-agent
For high-traffic websites (more than 5 application nodes), use a high availability configuration of td-agent to improve data transfer reliability and query performance.
Monitoring td-agent itself is also important. For general monitoring methods for td-agent see the following:
td-agent is fully open-sourced under the Fluentd project.
We offer a schema mechanism that is more flexible than that of traditional RDBMSs. For queries, we leverage the Hive and Presto Query Languages.