[Hawkular-dev] Garbage collection of outdated Servers/Metrics - especially with (orchestrated) containers

[Joel Takvorian]

>
>
>
> For inventory-new we could use the expiration feature of
> Hawkular-metrics for datapoints, where e.g. the agent would regularly
> sync data and thus refresh the last-seen time to keep an entry "alive".
>

If datapoints expire (that is, inventory "blobs"), their underlying metrics
will still be present in the database, even with no data associated. We may
want to delete them as well.
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