[squid-users] Squid 5.2 Peer parent TCP connection to x.x.x.x/x failed

[Alex Rousskov]

On 11/1/21 7:55 AM, David Touzeau wrote:

> The Squid uses the loopback as a parent.
> 
> The same problem occurs:
> 06:19:47 kid1| TCP connection to 127.0.0.1/2320 failed
> 06:15:13 kid1| TCP connection to 127.0.0.1/2320 failed
> 06:14:41 kid1| TCP connection to 127.0.0.1/2320 failed
> 06:14:38 kid1| TCP connection to 127.0.0.1/2320 failed
> 06:13:15 kid1| TCP connection to 127.0.0.1/2320 failed
> 06:11:23 kid1| TCP connection to 127.0.0.1/2320 failed

> cache_peer 127.0.0.1 parent 2320 0 name=Peer11 no-query default
> connect-timeout=3 connect-fail-limit=5 no-tproxy

It is impossible to tell for sure what is going on because Squid does
not (unfortunately; yet) report the exact reason behind these connection
establishment failures or even the context in which a failure has
occurred. You may be able to tell more by collecting/analyzing packet
captures. Developers may be able to tell more if you share, say, ALL,5
debugging logs that show what led to the failure report.

Alex.