[squid-users] Reloading squid service results in connection resets

[Alex Rousskov]

On 6/13/22 18:35, Toler, Matt wrote:

> That said, it was our understanding that reloading the service would not 
> disturb any old connections 

That is an oversimplified and somewhat optimistic view. Said that, most 
old connections indeed survive reconfiguration in most environments.


> and new connections would receive the new configuration.

That is correct only _after_ Squid starts listening for new connections 
again (as your experience can demonstrate).


> We were wondering if anyone else has encountered any 
> issues with connection resets of client traffic during squid service 
> reload? Or may otherwise have any thoughts on this issue.

The lack of smooth reconfiguration support is a known problem that has 
been discussed and is being addressed. Here are a few recent related 
discussions:

http://lists.squid-cache.org/pipermail/squid-users/2022-March/024675.html

http://lists.squid-cache.org/pipermail/squid-users/2022-May/024778.html


HTH,

Alex.