Re: [squid-users] assertion failed: store_swapout.cc:315: "mem->swapout.sio == self

Well it happens that 8GB of memory will not be enough for 240GB of ufs
disk cache as far as I can tell.
Lets try to fix it one step at a time.
Since you are getting into a position which squid get's stuck we can go
from step A to B and then to C.

First decrease the number of ufs directories to something like 1...
The cache_dir can handle more then what some can imagine.
What is the cache_dir number of objects?
You can use the cache_mgr interface to get some statistics on the cache_dir.
It's version 3.1.20 so basically you should be able to access it using
"squidclient mgr:menu"
I do not remember the exact name but it has something about the cache_dir.
After you will have one cache_dir which fits your number of files in a
form of for example 64 top directories and 256 upper directories you
might see something else.
note that 50M (million right?)json objects are huge but you might have a
limit from the INODE limit of the FS way before squid limits.

The machine basically doesn't meet the basic specs to store 50Million files.

Eliezer

On 05/04/2014 08:27 PM, viral shah wrote:
> Hi Eliezer,
>
> Thanks for your response, please find the answers below.
>
> what are the machine specs?
> Machine on which Squid is running, is VM having 2 cores and 8 GB of memory.
>
> why are you using so many ufs cache dirs? is there a reason?
> Yes, our purpose is to cache more than 50M json objects.
> Tried running with single cache directory. that didn't work,
> after 10-15 days Squid will stop responding with below error in
> cahce.log.
> "assertion failed: filemap.cc:76: "fm->max_n_files <= (1 << 24)"
> I came across work around for the above issue on internet, that
> mentioned having multiple cache directories.
>
>
> Viral
>
>
>
> On Sat, May 3, 2014 at 11:01 AM, Eliezer Croitoru <eliezer_at_ngtech.co.il> wrote:
>> Hey,
>>
>> couple questions:
>> - what are the machine specs?
>> - why are you using so many ufs cache dirs? is there a reason?
>>
>> Mainly this squid version is old and I suspect it's not supported anymore.
>> 64 doubles 5.1 is above 240GB of cache which requires lots of memory.
>>
>> Eliezer
>>
>>
>> On 05/03/2014 01:39 AM, viral shah wrote:
>>>
>>> Hello,
>>>
>>> I am running squid as http caching server, after running for few days
>>> our squid server will stop responding to client requests.
>>>
>>> When this occurs, I see below errors in cache.log.
>>
>>
Received on Sun May 04 2014 - 19:56:54 MDT