Java
This article explains how to use the fluent-logger-java library.
- Basic knowledge of Java
- Basic knowledge of Fluentd
- Java 6 or higher
Please refer to the following documents to install fluentd.
<source>
@type forward
port 24224
</source>
<match fluentd.test.**>
@type stdout
</match>
Please restart your agent once these lines are in place.
# for rpm/deb only
$ sudo /etc/init.d/td-agent restart
First, please add the following lines to pom.xml. The logger's revision information can be found in CHANGES.txt.
<dependencies>
...
<dependency>
<groupId>org.fluentd</groupId>
<artifactId>fluent-logger</artifactId>
<version>${logger.version}</version>
</dependency>
...
</dependencies>
Next, please insert the following lines into your application. Further information regarding the API can be found here.
import java.util.HashMap;
import java.util.Map;
import org.fluentd.logger.FluentLogger;
public class Main {
private static FluentLogger LOG = FluentLogger.getLogger("fluentd.test");
public void doApplicationLogic() {
// ...
Map<String, Object> data = new HashMap<String, Object>();
data.put("from", "userA");
data.put("to", "userB");
LOG.log("follow", data);
// ...
}
}
Executing the script will send the logs to Fluentd.
$ java -jar test.jar
The logs should be output to
/var/log/td-agent/td-agent.log or stdout of the Fluentd process via the stdout Output plugin.- List of Plugin References
For high-traffic websites (more than 5 application nodes), we recommend using a high availability configuration of td-agent. This will improve data transfer reliability and query performance.
Monitoring Fluentd itself is also important. The article below describes general monitoring methods for td-agent.
If this article is incorrect or outdated, or omits critical information, please let us know.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.
Last modified 3yr ago