Re: [squid-users] Re: slow browsing in centos 6.3 with squid 3 !!

From: Amos Jeffries <squid3_at_treenet.co.nz>
Date: Tue, 26 Feb 2013 12:32:28 +1300

On 26/02/2013 6:34 a.m., Marcus Kool wrote:
>
>
> On 02/25/2013 01:51 PM, Ahmad wrote:
>> hi
>> Marcus ,
>> u must be correct ,
>> i have 32 G total memory ,
>> ive confiured in cache_mem =20000 M which is 20 G !!
>> ive noticed that squid hanged and got down after some hours of
>> operating !!
>>
>> i looked at all logs of squid and squidguard ,
>> i didnt find any errors from squid !
>>
>> i looked at free memory by
>> #free -m
>> ==>it was only 600 M free of memory
>> the # of process in squid was increasing gradually ,
>> as i remember it reached 890 process when squid go down !!
>>
>> i rebooted the server and squid is working fine now !! i wish i
>> found the
>> solution of the problem
>> now i decreased the cache_mem value to 10000 M instead of 20000 M
>> also i will try to increase the memory to 64 G as soon as possible .
>>
>> any other suggestions ?
>>
>> with my best regards
>
> cache_mem is 10 GB,
> the in-memory index for 1500 GB disk cache is 21 GB,
> Squid uses 64 KB buffers for each connection....
> And the system has 32 GB of real memory.
>
> I suggest to reduce the disk cache and make sure that Squid
> does not use more than 28 GB.
>
> Marcus

Also, the hours long "hang" on startup is an artifact of Squid loading
the cache indexes into memory. This is a well known problem in older
Squid and the behaviour has been improved (but not fully) in the
Squid-3.3 series performance optimizations.

Amos
Received on Mon Feb 25 2013 - 23:32:34 MST

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