On Thursday 19 June 2003 16.13, AJ Lemke wrote:
> Just following up on this.  I have not been able to solve this.  I
> have tried changing the cache time to lower values and the site
> caches for the specified time.  I start bringing the times up
> greater than 4 hours and caching becomes irratic.  I have it
> specified for 2 day as of right now.  It seems to caches for about
> 24-30 hours. There seems to be no pattern to to the cache times.
>
> Any help would be appreciated.

Please enable log_mime_hdrs and then show the request history of the 
URL in question, and your refresh_pattern settings.

log_mime_hdrs allows us to see what is going on, but to gain an 
understanding some history of the object is needed

  1) A initial TCP_MISS/TCP_REFRESH_MISS where the object got cached
  2) Maybe some TCP_HIT [remove duplicates if there is many]
  2) The next TCP_MISS/TCP_REFRESH_MISS where you think the object 
should have been a HIT..

This can then be applied to rules about cachable request and your 
refresh_patterns to verify if the object should really have been a 
hit, or if there is a valid reason to why it was processed as a cache 
miss.

Regards
Henrik
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