Hit counter persistent variables

Manlio Perillo manlio_perillo at libero.it
Wed Aug 20 14:56:46 MSD 2008

Chris Savery ha scritto:
> Hello,
> Is there a way to have hit counter variables that would save every hour 
> or persist across restarts?
> I'm working on a photography site that I expect to be serving a huge 
> number of thumbnail (static) images. I don't need full logging of the 
> thumbnails so I've turned if off for that location but it sure would be 
> nice to keep some tracking of how many are served and perhaps at what 
> rate. I thought maybe just a counter variable that increments on each 
> hit in that location but it wouldn't be too useful unless it could save 
> to file from time to time, or perhaps append a count to a file every 
> hour so there is a time series log.

You can write an Nginx module that use, as an example, gdbm to store 
data, protected with a lock.

Manlio Perillo

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