Scala
This article explains how to use the fluent-logger-scala library.
- Basic knowledge of Scala and sbt
- Basic knowledge of Fluentd
- Scala 2.9.0 or 2.9.1
- sbt 0.12.0 or later
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 build.sbt. The logger's revision information can be found in the ChangeLog.
resolvers += "Apache Maven Central Repository" at "http://repo.maven.apache.org/maven2/"
libraryDependencies += "org.fluentd" %% "fluent-logger-scala" % "0.3.0"
or
resolvers += "Sonatype Repository" at "http://oss.sonatype.org/content/repositories/releases"
libraryDependencies += "org.fluentd" %% "fluent-logger-scala" % "0.3.0"
Next, please insert the following lines into your application. Further information regarding the API can be found here.
import org.fluentd.logger.scala.FluentLoggerFactory
import scala.collection.mutable.HashMap
object Sample {
val LOG = FluentLoggerFactory.getLogger("fluentd.test")
def main(args: Array[String]): Unit = {
...
val data = new HashMap[String, String](.md);
data.put("from", "userA");
data.put("to", "userB");
LOG.log("follow", data);
...
}
}
Executing the script will send the logs to Fluentd.
$ sbt
> run
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If this article is incorrect or outdated, or omits critical information, please let us know.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