[squid-users] Filemap bits in use problem

I'm running 2.5.STABLE1-20030317 on a Sun Cobalt Linux box. Downloaded and installed it just before 2.5 stable 2 was released, doh what timing I have. Looking in cachemgr.cgi in the store directory stats I'm seeing something strange. Filemap bits in use seems excessively high compared to the % capacity used. This is a copy of the cachemgr.cgi screen.

Store Directory Statistics:
Store Entries : 125975
Maximum Swap Size : 12863488 KB
Current Store Swap Size: 1178513 KB
Current Capacity : 9% used, 91% free

Store Directory #0 (ufs): /home/squid2/cache
FS Block Size 1024 Bytes
First level subdirectories: 16
Second level subdirectories: 256
Maximum Size: 12863488 KB
Current Size: 1178513 KB
Percent Used: 9.16%
Filemap bits in use: 125828 of 131072 (96%)
Filesystem Space in use: 1415920/17671528 KB (8%)
Filesystem Inodes in use: 134728/4621888 (3%)
Flags: SELECTED
Removal policy: lru
LRU reference age: 9.72 days

The two relevant sections in squid.conf are

cache_dir ufs /home/squid2/cache 12562.548 16 256
store_avg_object_size 9 KB

the 9k figure for the store_avg_object_size I chose from the following section of General Runtime Information in cachemgr.cgi

Cache information for squid:
        Request Hit Ratios: 5min: 39.8%, 60min: 35.0%
        Byte Hit Ratios: 5min: 9.5%, 60min: 41.4%
        Request Memory Hit Ratios: 5min: 1.3%, 60min: 1.2%
        Request Disk Hit Ratios: 5min: 19.8%, 60min: 31.2%
        Storage Swap size: 1181892 KB
        Storage Mem size: 19076 KB
        Mean Object Size: 9.36 KB
        Requests given to unlinkd: 668

According to the faq, the filemap bits in use should be equal to 2 * swap size / avg object size, so my filemaps should be 2,858,553 filemap bits, instead of the 131,072 which is listed?

What can I do to increase the number of filemap bits in use, I don't want to see what will happen when it hits 100%

Also, is there a quick and easy way to update from 2.5 stable 1, to 2.5 stable 2?

Eric

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Received on Wed Mar 26 2003 - 19:28:32 MST