On 22.12.09 17:45, Manjusha Maddala wrote: > Using LRU replacement policy, I hope you use at least "heap LRU" which is more effective. > I see many of the cached webpages for my > site getting evicted. Could someone here tell me: > > 1. How often is the replacement done? when the percentage of configured cache_dir size crosses the cache_swap_high value. > 2. Lets say the cache low water mark is set to 95, I understand that > once the disk usage exceeds 95%, cache replacement kicks in. Once the > process is completed, what would the disk usage drop to? the cleaning stops after cache usage falls under cache_swap_low value. > 3. I notice some pages in the cache_dir which are over a month old. > Doing a "curl" to the squid cache with the URL of the cached page causes > a TCP_REFRESH_MISS/FIRST_UP_PARENT entry to be logged in the access log. > Which means, the page has become stale (by the refresh pattern rules) on > the web cache and a new page is fetched from the parent site. From this, > I infer that the page hasn't been referenced in the last one month and > yet hasn't been marked for cache replacement while other newer cached > pages have been flushed out. Why's that? apparently nobody asked for it and previous cleanings removed older objects. -- Matus UHLAR - fantomas, uhlar@xxxxxxxxxxx ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Windows 2000: 640 MB ought to be enough for anybody
