[SLING-3278] Provide a HealthCheckExecutor service

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Health Check Core 1.1.0, Health Check webconsole 1.1.0
• Component/s: Health Check
• Assignee: Carsten Ziegeler
• Reporter: Georg Henzler
• Created: 11/Dec/13 07:45
• Updated: 31/Jan/14 08:04
• Resolved: 15/Jan/14 11:13

Description

Goals:

• Be able to get an overall (aggregated) result as quickly as possible (ideally <2sec)
• Whenever possible, return most current results (e.g. for a memory check)
• Provide a declarative way for async checks (async checks should be the exception though)

Approach

• Run checks in parallel
• Make sure long running (or even stuck) checks are timed out
• If a health check must run asynchronously (because its execution time cannot be optimized), it should be enough to just specify a service property (e.g. "hc.async").

See also
http://apache-sling.73963.n3.nabble.com/Health-Check-Improvements-td4029330.html#a4029402
http://apache-sling.73963.n3.nabble.com/Health-checks-execution-service-td4028477.html