Re: [SQU] HELP: cache too big!

From: Nathan Lewis <[email protected]>
Date: Wed, 13 Dec 2000 20:49:26 -0600

This is a documented bug in 2.3Stable3. It is described along with a patch at:

http://www.squid-cache.org/Versions/v2/2.3/bugs/#squid-2.3.stable3-storeExpi
redReferenceAge

or you can just upgrade to 2.3Stable4

At 08:02 PM 12/13/2000 -0600, Joe Cooper wrote:
>Markus Stumpf wrote:
>
>>On Tue, Dec 12, 2000 at 02:14:52PM -0600, Joe Cooper wrote:
>>
>>>I've found that if Squid 2.2.STABLE5 (I don't know about later versions)
>>>is being shut down improperly or crashes (due to load, for example) on a
>>>regular basis the cache object store will grow, because Squid will
>>>'lose' objects in the store. The objects will still be present, as
>>>files, but the store index will not know about them. Deleting your
>>>swap.state file(s), starting squid, and giving it a few minutes/hours to
>>>rebuild it's swap.state fixes this problem.
>>
>>No, it doesn't :( At least it doesn't for me.
>>I have shut down squid the first time it happend (in the meantime I did
>>this 3 or 4 times) and gone through the "nightmare" of a 12 hours full
>>rebuild of 50 GB cache data.
>>I do monitor my squid with Duanes scripts (vitals graphs). These show
>>that squid knows about 60 GB data on the disks, clains to reduce it
>>(the graphs and the output of mgr:storedir tell me so) but the DISK
>>space remains the same (and grows further).
>>Squid uses a LRU max-age of about 20 days.
><SNIP>
>>Here's some more info:
>>------------------------------------------------------------------------
>>cache_dir ufs /share/zuse2/disk02/squid/cache 12000 32 256
>>cache_dir ufs /share/zuse2/disk03/squid/cache 12000 32 256
>>cache_dir ufs /share/zuse2/disk05/squid/cache 12000 32 256
>>cache_dir ufs /share/zuse2/disk06/squid/cache 12000 32 256
>
> From this cache_dir line (ufs FS type option is available in 2.2), as
> someone else mentioned regarding Matt Ashfield's posts, it is very clear
> that both of you seeing this problem are using some version of Squid
> later than 2.2STABLE5 (which has no known disk usage overage issues).
> Some version of 2.3, presumably. There /is/ a version of 2.3STABLE that
> does not keep the disk usage in check, and it is documented on the
> releases page in the known bugs section for 2.3--and the two or three
> versions since then have not had the bug.
>
>What version of Squid are you guys using? I cannot speak with knowledge
>of 2.3 because we gave up on shipping with it due to async i/o issues, so
>stopped testing it, and skipped straight on to 2.4. 2.2STABLE5+hno
>definitely has no issues of this sort (other than in the case of a crash).
> --
> Joe Cooper <joe@swelltech.com>
> Affordable Web Caching Proxy Appliances
> http://www.swelltech.com
>
>--
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Received on Wed Dec 13 2000 - 19:49:07 MST

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