[squid-users] Two questions about stored objects

[Sebastian Goicochea]

Amos, your answer was very helpful. Purge looks exactly like the 
solution I'm looking for, but I might be not using it correctly. I'm 
getting loads of 404s like these ones:

purge  -p localhost:3080 -c /etc/squid/squid.conf -e 
'.*video\.squidinternal.*' -P 1

/cache/2/00/E9/0000E95B 404   321477 
http://video.squidinternal/140/6584817-6905732/1CSDuPCBf10
/cache/1/00/E9/0000E93E 404  1790312 
http://video.squidinternal/135/89497600-91287551/o01E_GZ1_mM
/cache/2/00/E9/0000E9A3 404   123367 
http://video.squidinternal/251/377034-499838/dl_yFFX8xk0


Is that 404 code ok? Is squid deleting the object? I don't know how to 
interpretate the output


Thanks again
Sebastian


El 08/07/15 a las 18:33, Amos Jeffries escribió:
> On 9/07/2015 5:17 a.m., Sebastian Goicochea wrote:
>> Hello everyone, I have been making some modifications (size, object max
>> size) in some cache dirs and I have a couple of questions:
>>
>> 1) If I lower de maximum object size for a certain cache_dir and
>> reconfigure (I did a squid -z without squid running), what happens to
>> the files that are no longer in the cache_dir size limits but are
>> already stored?
> No. It only affects new objects being stored to disk.
>
> There is one caveat however. Sometimes objects get "promoted" from disk
> to memory caching. When those cycle back to disk they will not go to the
> original cache_dir. Which may leave you with an un-deleted but nolonger
> indexed file on disk.
>
>> 2) If I change the min and max times in refresh_patterns, what happens
>> to the objects that are already stored? Where they stored with the "old"
>> times or are they going to be re-evaluated the next time they are
>> requested by a user?
> Have no effect except on active traffic. That does include "active" in
> the sense of being saved to disk. But not objects just sitting there
> already.
>
>
> Overall, if you change settings like these the state does slowly
> migrates to the new values as cached content expires. But that is not
> fast, could take minutes or weeks depending on your initial state.
>
> To make immediate administrative changes to on-disk AUFS/UFS/diskd cache
> content use the squid-purge tool which is bundled with recent Squid
> versions.
>
> Amos
>
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