On Jun 17, 2009, at 1:27 PM, [email protected] wrote:
> I'm reading the Nagios docs (a rather long trip - thanks for the
> great docs!)
Good deal... =)
> and I'm seeing plenty of references to retention. I'm new to this
> and it isn't clicking.
>
> Why would I want retention?
>
> What's it for?
Retention is useful in at least a couple of cases --
- When nagios is restarted hosts and services are normally put into a
PENDING state until they are actually checked again. With retention,
information in the retention file will be used to set the initial
status of hosts and services to the last known state. It makes
restarts essentially transparent.
- Several program-wide and host and service specific things can be
changed via the GUI (whether checks are enabled, notifications are
enabled, etc...). Without retention, those changes are reverted back
to their config-file settings on restart. With retention, they are
maintained seamlessly across restarts.
--
Marc
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