[jira] [Resolved] (FELIX-6400) Reduce resource consumption during component checks

["Carsten Ziegeler (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FELIX-6400?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carsten Ziegeler resolved FELIX-6400.
-------------------------------------
    Resolution: Fixed

Implemented in https://github.com/apache/felix-dev/commit/5f8217865be229eb915fd99f2be2a83b4b8868bd by using a simple cache that gets cleared whenever a change in the ds runtime happens

> Reduce resource consumption during component checks
> ---------------------------------------------------
>
>                 Key: FELIX-6400
>                 URL: https://issues.apache.org/jira/browse/FELIX-6400
>             Project: Felix
>          Issue Type: Improvement
>          Components: Health Checks
>    Affects Versions: healthcheck.generalchecks 2.0.6
>            Reporter: Carsten Ziegeler
>            Assignee: Carsten Ziegeler
>            Priority: Major
>             Fix For: healthcheck.generalchecks 2.0.8
>
>
> the components health check is each time (every 5 secs) iteration over all DS components just to check for a few. The iteration includes access to the service registry which (in Felix framework 6.x) has a lock
> There are two optimizations:
> - components check should only check for the configured ones instead of iterating over all components just to find the ones interested in
> - the resultcan be cached until an event occurs (service changed event of the SCR runtime as the runtime has a change count property to exactly avoid polling)



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