What do the Meta Data entries mean?
StoreEntry Entry describing an object in the cache. IPCacheEntry An entry in the DNS cache. Hash link Link in the cache hash table structure. URL strings The strings of the URLs themselves that map to an object number in the cache, allowing access to the StoreEntry. Basically just like the log file in your cache directory: • PoolMemObject structures • Info about objects currently in memory, (eg, in the process of being transferred). • Pool for Request structures • Information about each request as it happens. • Pool for in-memory object • Space for object data as it is retrieved. If squid is much smaller than this field, run for cover! Something is very wrong, and you should probably restart squid.