Jörg Hoh created SLING-2597:
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Summary: Provide interface for monitoring services
Key: SLING-2597
URL: https://issues.apache.org/jira/browse/SLING-2597
Project: Sling
Issue Type: New Feature
Reporter: Jörg Hoh
There should be an interface which one can query to get information about the
status of a service implementing this interface.
eg.
public interface HealthCheckable {
public int getStatus();
}
For the return value for this method we could use:
static int OK = 0;
static int WARNING = 1;
static int CRITICAL = 2;
static int UNKNOWN = 3;
(these are the values which Nagios uses as return values for its plugins, see
http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN76).
The decision what value is returned is delegated to the service, so maybe they
need to have some configuration to define the points, where a "OK" becomes
"WARNING".
Via OSGI whiteboard pattern we can collect then all services providing status
information and calculate an overall status of the system.
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