How does Nagios determine that a host recovers?

[Brandon Amundson]

I posted a message similar to this last week and did not receive a response.
My question was, When a service goes down the status of the host also is
shown
as down. And when the service recovers, the status of the host is still
shown as down.
So, according to the message below, host status should return to the ok
state once the
service comes up?  What if it doesn't? What should I look at, what could be
misconfigured.

I also was wondering what causes this error in my alert email?

Info: check_ping: %s: Warning threshold must be integer or percentage!

No, it continues on with the normally scheduled service checks at
whatever interval the normal_check_interval is set at.  It doesn't do
the retries at the retry_check_interval since the service is already in
a Hard Non-OK state.  Whenever Nagios sees that a service is OK on a
host that is currently "Down", the host state will return to OK.


Thanks



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