Two things:
First change the:
quick_abort_min -1

or remove it since it can do much harm on many cases and is useful only for 
specific ones.
Also try to remove all the refresh_pattern lines except for the defaults just 
to make sure they do not cause the server to move slow.
To understand the size of your service please attach the squid manager info 
page.
Have you checked CPU or memory usage when the service is slow?

using the cache manager can be seen at: 
http://wiki.squid-cache.org/Features/CacheManager#default
And you can use curl with something like 
http://mycache.example.com:3128/squid-internal-mgr/info

Eliezer

----
http://ngtech.co.il/lmgtfy/
Linux System Administrator
Mobile: +972-5-28704261
Email: [email protected]


From: squid-users [mailto:[email protected]] On Behalf 
Of Hardik Dangar
Sent: Saturday, March 4, 2017 11:58 AM
To: Squid Users <[email protected]>
Subject: [squid-users] squid errors in error.log and slow internet from squid

Hello,

I have been facing few squid issues lately. we are about 40 users mostly linux, 
some mac and some windows system.

squid has become very slow for some reason. we can check that by bypassing 
squid and opening same urls. Second thing we are seeing swap mismatch errors 
and only solution we found is to remove swap file and use squid -z that will 
make things work for a day. other than that there are other errors in squid log 
too.

/var/cache/squid directory has became around 80 gb.

Here is our squid version and conf file 

Squid Cache: Version 3.5.23
Service Name: squid
configure options:  '--prefix=/usr' '--localstatedir=/var/squid' 
'--libexecdir=/lib/squid' '--srcdir=.' '--datadir=/share/squid' 
'--sysconfdir=/etc/squid' '--with-default-user=proxy' 
'--with-logdir=/var/log/squid' '--with-pidfile=/var/run/squid.pid' 
'--with-openssl' '--enable-ssl-crtd' '--enable-inline' '--disable-arch-native' 
'--enable-async-io=8' '--enable-storeio=ufs,aufs,diskd,rock' 
'--enable-removal-policies=lru,heap' '--enable-delay-pools' 
'--enable-follow-x-forwarded-for' '--enable-url-rewrite-helpers=fake' 
'--enable-ecap' '--enable-arp-acl' '--disable-translation'


Squid.conf file
https://gist.githubusercontent.com/hardikdangar/44f424e5a0be0a2a12ebc53a25a29629/raw/6e70682601b03732b662094ea7f4e79fb80a3851/squid.conf

Squid error log
http://pastebin.com/raw/J7Ws2WKT
if you see error log file you can see  Error negotiating SSL errors and  
Ignoring malformed cache entry errors frequently.


squid access also have lot of entries like,
1488621158.416   1316 192.168.1.51 TAG_NONE/200 0 CONNECT 
http://35.154.95.34:443 - ORIGINAL_DST/http://35.154.95.34 -
1488621158.416   1315 192.168.1.51 TAG_NONE/200 0 CONNECT 
http://35.154.95.34:443 - ORIGINAL_DST/http://35.154.95.34 
which i believe https requests which have certificate issues. this has became 
growing for mac machines.

Anybody else have similar issues?

We are not sure weather it was the 3.5.23 upgrade or adding Mac systems to our 
network is causing these issues. but squid has certainly become slow for lots 
of people to the point we have to bypass them.


Thank you very much for reading through the post. Let me know if you find any 
issues with our config or anything that can help us figuring out whats the 
issue.

Have a good day.

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