Setup JavaMelody for Quarkus
How to setup JavaMelody for Quarkus
Background
JavaMelody is a good profiling tool for Java backend related services exposing web content like REST and/or Servlets. Follow open-source project https://github.com/javamelody/javamelody
Quarkus is a Kubernetes Native Java stack crafted from Java libraries and standards. More info at https://quarkus.io/
In Maven pom.xml file add Undertow and JavaMelody dependencies:
…
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-undertow</artifactId>
</dependency>
<dependency>
<groupId>net.bull.javamelody</groupId>
<artifactId>javamelody-core</artifactId>
<version>1.90.0</version>
</dependency>
…
You need to exclude JavaMelody for ARC by defining property, for example in application.properties:
quarkus.arc.exclude-types=net.bull.javamelody.*
Now JavaMelody should be set up and URL “/monitoring” should be available.
Since dataSource bean isn’t available you need to enable profiling of the database in another way for Quarkus. Could be done by setting up / changing some properties for example in application.properties:
quarkus.datasource.db-kind=other
quarkus.datasource.jdbc.driver=net.bull.javamelody.JdbcDriver
quarkus.datasource.jdbc.url=jdbc:h2:mem:default;DB_CLOSE_DELAY=-1?driver=org.h2.Driver
Now also the database and possible SQL executions should be seen in JavaMelody.
Enjoy profiling using JavaMelody also in Quarkus! Happy coding!
Fredrik
22-02-16
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