Re: Squid 7.1 workers options without kernel SO_REUSEPORT param

On 2025-08-04 09:02, Clément Paulet wrote:

> We use SQUID 6.3 with enable-workers option, 16 workers for our traffic.

Squid has no "enable-workers" configuration option. I assume you meant 
the "worker-queues" option that comes with http_port and similar 
listening port directives. I also assume that you use "workers 16" in 
your squid.conf. Please correct any wrong assumptions.


> How can we update to 7.1 without change our OS Kernel (based on RedHat 9) ?

If your OS configuration stays the same, then, bugs notwithstanding, you 
should be able to upgrade Squid from v6 to v7 without adding or removing 
the worker-queues option.


> Seems option SO_REUSEPORT mandatory since 7.x.

For Squids configured with the "worker-queues" port option, SO_REUSEPORT 
support in OS TCP stack is mandatory since the "worker-queues" port 
option was added in Squid v5.

For Squids configured without the "worker-queues" port option, 
SO_REUSEPORT support is unnecessary (and unused/ignored) in all Squids.

I see no relevant changes between Squid v6 and v7.


Please detail the problem you are experiencing while upgrading; it is 
not clear (to me) what prevents you from upgrading Squid while keeping 
your squid.conf the same.


Thank you,

Alex.

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