Re: [Nagios-devel] Difference in CPU time with and without ePN
Posted: Fri Jan 11, 2008 9:05 pm
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On 11/01/08 11:00 AM, Thomas Guyot-Sionnest wrote:
> Andreas Ericsson wrote:
>> Thomas Guyot-Sionnest wrote:
>>> 1. Kill and restart Nagios instead of HUP'ing it (Why don't nagios
>>> execve itself on HUPs BTW?)
>> I have no idea. It would definitely make it easier to write modules
>> for it, as each new load is 100% certain to provide a clean slate.
>
> Eh, I just flashed back on this. I know why; it's simply because Nagios
> opens the resource file (usually readable only by root) before dropping
> privileges. The only way it can restart by itself without loosing access
> to that file is what it does right now.
Oops I though It was that but apparently it's not the case (at least on
Nagos 3); if the file is only readable by root Nagios fails on HUP's.
Sorry for the spam (actually for not verifying my claims...)
Thomas
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This post was automatically imported from historical nagios-devel mailing list archives
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On 11/01/08 11:00 AM, Thomas Guyot-Sionnest wrote:
> Andreas Ericsson wrote:
>> Thomas Guyot-Sionnest wrote:
>>> 1. Kill and restart Nagios instead of HUP'ing it (Why don't nagios
>>> execve itself on HUPs BTW?)
>> I have no idea. It would definitely make it easier to write modules
>> for it, as each new load is 100% certain to provide a clean slate.
>
> Eh, I just flashed back on this. I know why; it's simply because Nagios
> opens the resource file (usually readable only by root) before dropping
> privileges. The only way it can restart by itself without loosing access
> to that file is what it does right now.
Oops I though It was that but apparently it's not the case (at least on
Nagos 3); if the file is only readable by root Nagios fails on HUP's.
Sorry for the spam (actually for not verifying my claims...)
Thomas
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=VWYM
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This post was automatically imported from historical nagios-devel mailing list archives
Original poster: [email protected]