Re: [squid-users] Squid does not respond to TCP SYN when there are thousands of connection

On 8/03/2013 3:25 a.m., dahanhsi wrote:
> hi all,
> in Squid 2.7, should --with-maxfd not be necessary if I set the
> max_filedescriptors?
>
> thanks

The build-time --with option sets the default value for the
configuration file directive.
If the --with option is not provided the compiler will set a low number
usually 1K-4K based on the build machine settings.

PS. Please seriously consider upgrading to a current stable (today that
is 3.3.2). We are not even porting security vulnerability fixes back to
2.7 any more.

Amos

> 2013/2/16 dahanhsi:
>> 2013/2/15 Amm:
>>>
>>>> ulimit -n must be run as the same user that the proxy is running.
>>>>
>>>> In debian/ubuntu that user is proxy, and if you type ulimit as root you
>>>> will get a different answer that if you type ulimit logged in as proxy user.
>>>>
>>>> Be sure to check the ulimit for the right user
>>> Or you can check current limits using:
>>>
>>> /proc/SQUIDPID/limits
>>>
>> Hi,
>>
>> I set my /etc/security/limit.conf:
>> * soft nofile 655360
>> * hard nofile 655360
>>
>> so user squid also has limit in 655360:
>> # cat /proc/SQUIDPID/limits
>> Limit Soft Limit Hard Limit Units
>> Max cpu time unlimited unlimited seconds
>> Max file size unlimited unlimited bytes
>> Max data size unlimited unlimited bytes
>> Max stack size 10485760 unlimited bytes
>> Max core file size unlimited unlimited bytes
>> Max resident set unlimited unlimited bytes
>> Max processes 257742 257742 processes
>> Max open files 655360 655360 files
>> Max locked memory 65536 65536 bytes
>> Max address space unlimited unlimited bytes
>> Max file locks unlimited unlimited locks
>> Max pending signals 257742 257742 signals
>> Max msgqueue size 819200 819200 bytes
>> Max nice priority 0 0
>> Max realtime priority 0 0
>> Max realtime timeout unlimited unlimited us
>>
>> and my fd.file-max is 655360 too:
>> # cat /proc/sys/fs/file-max
>> 655360
Received on Thu Mar 07 2013 - 21:02:02 MST