[squid-users] Squid File descriptors warning

Amos Jeffries squid3 at treenet.co.nz
Tue Aug 7 08:26:27 UTC 2018

On 07/08/18 19:45, Alex K wrote:
> Hi all,
> I observed the following warning at squid cache logs:
> WARNING! Your cache is running out of filedescriptors
> Googling around I tried to increase the default file descriptors of the
> system (I am runnign Debian9 x64 bit), by setting at /etc/sysctl.conf:
> I am running a compiled version 3.5.23.
> I am not sure I have done the correct steps or if I need to tweak the
> ulimits also.
> Any experience from your side?

The init script installed with Squid 3.x on Debian sets the limit to 64K
file descriptors.

What is Squid startup logging for file descriptors available?
 Probably in the system /var/log/messages log, if not cache.log.


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