[squid-users] SQUID memory error after vm.swappines changed from 60 to 10

[Marcus Kool]

On 13/11/17 10:46, Bike dernikov1 wrote:
> On Mon, Nov 13, 2017 at 12:15 PM, Marcus Kool
> <marcus.kool at urlfilterdb.com> wrote:
>>
>>
>> On 13/11/17 07:46, Bike dernikov1 wrote:
>>
>>>> are you saying that you have
>>>>      cache_mem 14G
>>>> If yes, you should read the memory FAQ and reduce this.
>>>> 'cache_mem 14G' explains that Squid starts 'small' and grows over time.
>>>
>>>
>>> For our case, what do you recomend.  10GB or even lower ?
>>> Plan reading today, i hope that I will have peace, to concentrate.
>>
>>
>> cache_mem does NOT define the total memory use of Squid.
>> The FAQ explains it.
>> On a 24G system you can start with 7 GB and only after 3 days of running
>> without issues and verifying that the cache is 100% utilised (if not, Squid
>> can grow) and there is sufficient free memory, you can increase it.
>>
> 
> Read FAQ.
> Now  trying to pass trough squid-internal-mgr/ reports/statistics.
> For now we will stay at cache_mem 14GB, because we are modifying too
> many settings at same time. Now at 99% used at 14GB if i read correctly.
> Thanks for sugestions and help.
> 
> 
> squid-internal-mgr/info output:
> Cache information for squid:
> Hits as % of all requests: 5min: 5.8%, 60min: 6.4%
> Hits as % of bytes sent: 5min: 16.8%, 60min: 18.7%
> Memory hits as % of hit requests: 5min: 64.1%, 60min: 64.9%
> Disk hits as % of hit requests: 5min: 0.0%, 60min: 0.1%
> Storage Swap size: 0 KB
> Storage Swap capacity: 0.0% used,  0.0% free
> Storage Mem size: 14195856 KB
> Storage Mem capacity: 99.0% used,  1.0% free
> Mean Object Size: 0.00 KB
> Requests given to unlinkd: 0

Beware that he storage mem size is not the same as total memory used.