Since there is a bug in the store.log this a fixed version of the tool: http://paste.ngtech.co.il/pll97qera
The bug is that the cache_mem should not be reported on each memory store object release inside the store.log since the store.log is for cache_dir only. The difference between a cache_dir and a memory object release is the file number(the 4 argument in a log line) which is "FFFFFFFF" for memory object and lower for a regular cache_dir such as ufs.
Eliezer * Thanks to Amos and Alex for their help to understand the issue. On 01/10/2015 16:21, Eliezer Croitoru wrote:
I already had a plan to write something like that in the past and I had some time so I wrote this store.log tool: http://paste.ngtech.co.il/pr3kbbf4q The tool is written in ruby and what it does is "estimating" what is in the cache_dir now based on reading the store.log. Since I have not spent too much time on understanding the store.log but I had a basic idea of whats in it that seems to give some results for now. The tool gets only one argument and it's the location of squid store.log and reads it like the store "journal" which takes view from nothing to what should exit now. Each line in the store.log represents one operation and it is expected to be logger in the order of execution. Due to this expectation we can predict that if a certain file was written to the disk(using SWAPOUT) and until the end of the log(which should represent now) it was not reported to be removed(RELEASE) from the cache it is still there but there is no guarantee that it will be used as a cache HIT. The tool needs more functionality to be more accurate and to display the estimated cache_dir size. For now running the script piping it with "wc -l"(reduce 1 line) will give you the result of how many objects you have in all your cache_dir on the server from the start time of the store.log. Any suggestions and requests regarding the tool are welcome. Eliezer _______________________________________________ squid-users mailing list squid-users@lists.squid-cache.org http://lists.squid-cache.org/listinfo/squid-users
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