./gradlew distZip
Usage: jmx-health-check -U <service_url> -O <object_name>
-o <operation_name> [--username <username>] [--password <password>] [-h]
Options are:
-h
Help page, this page.
-U
JMX URL; default: "service:jmx:rmi://localhost:1234/jmxrmi"
-O
Object name to be checked, for default: "org.springframework.boot:type=Endpoint,name=healthEndpoint"
-o
Operation to invoke on MBean after querying value, default: "getData"
--username
Username, if JMX access is restricted; for example "monitorRole"
--password
Password
First, start your spring boot process with JMX remote agent enabled. See http://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html
Spring Boot by default exposes its actuator endpoint for health checks on the
JMX object org.springframework.boot with type=Endpoint and name=healthEndpoint.
The JMX domain can be changed by setting the spring.jmx.default-domain property.
Then, access the jmx port (1234 in the example below) from this command-line client. You can use the result printed out on STDOUT, but for health checking it is more advisable to use the process exit code. Here is an example:
jmx-health-check -U service:jmx:rmi:///jndi/rmi://localhost:1234/jmxrmi -O org.springframework.boot:type=Endpoint,name=healthEndpoint -o getData
Result:
status=DOWN, diskSpace={status=UP, total=190163431424, free=16598224896, threshold=10485760}, rabbit={status=DOWN, error=org.springframework.amqp.AmqpConnectException: java.net.ConnectException: Connection refused}, refreshScope={status=UP}, configServer={status=UNKNOWN, error=no property sources located}
Process exit codes:
- 0=OK - The JMX result does not have a "status", or the status is "UP".
- 1=CRITICAL - The JMX result has a "status" property, and it is not "UP".
- 2=UNKNOWN - The command-line arguments are incorrect.
- Code derived from nagios JMX plugin. See https://sourceforge.net/projects/nagioscheckjmx/
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