27 messages in ru.sysoev.nginxRe: Feature request: Run a script whe...
FromSent OnAttachments
Rt IbmerApr 28, 2008 8:44 am 
Cliff WellsApr 28, 2008 10:20 am 
mikeApr 28, 2008 11:53 am 
Rt IbmerApr 28, 2008 2:02 pm 
Cliff WellsApr 28, 2008 2:18 pm 
Manlio PerilloApr 28, 2008 2:37 pm 
Rt IbmerApr 28, 2008 6:10 pm 
Rt IbmerApr 28, 2008 6:19 pm 
Manlio PerilloApr 29, 2008 1:18 am 
Manlio PerilloApr 29, 2008 1:25 am 
Rt IbmerApr 29, 2008 8:11 am 
François BattailApr 29, 2008 10:46 am 
Rt IbmerApr 29, 2008 1:41 pm 
Manlio PerilloApr 29, 2008 1:57 pm 
François BattailApr 29, 2008 2:27 pm 
Aleksandar LazicApr 29, 2008 2:36 pm 
François BattailApr 29, 2008 11:20 pm 
Mansoor PeerbhoyApr 30, 2008 1:46 am 
Manlio PerilloApr 30, 2008 2:36 am 
François BattailApr 30, 2008 3:54 am 
Mansoor PeerbhoyApr 30, 2008 5:03 am 
Grzegorz NosekApr 30, 2008 5:18 am 
Cliff WellsApr 30, 2008 10:40 am 
Manlio PerilloApr 30, 2008 12:16 pm 
Manlio PerilloMay 1, 2008 2:42 am 
Grzegorz NosekMay 1, 2008 11:28 am 
Manlio PerilloMay 1, 2008 12:02 pm 
Actions with this message:
Paste this link in email or IM:
Paste this link in email or IM:
Atom feed for this thread
Paste this URL into your reader:
Subject:Re: Feature request: Run a script when upstream detected down/upActions...
From:Cliff Wells (clif@public.gmane.org)
Date:Apr 30, 2008 10:40:41 am
List:ru.sysoev.nginx

On Wed, 2008-04-30 at 05:03 -0700, Mansoor Peerbhoy wrote:

Manlio,

Yes, I see what you're saying. It is always going to be a problem if the listener cannot consume the data fast enough.

I think if Nginx only updated counters (similar to OpenVZ's bean counters) this would not be an issue and would work well with the shared memory/virtual file approach (and fits better with the idea of event monitoring vs logging/post-mortem). Rather than a stream of data you have a "file" of fixed size that's constantly updated. It also simplifies the parsing of the data by an external application.

If a virtual file system (like /proc) were used, then it should also be possible to use inotify (or similar) from external apps to be notified of events (although this might be too busy).

Regards, Cliff