[squid-users] Possible to user reply_header_add directive with acl random access list ?

[--Ahmad--]

Hi Alex, 
acl half10000 random 1/10
acl half10001 random 1/9
acl half10002 random 1/8
acl half10003 random 1/7
acl half10004 random 1/6
acl half10005 random 1/5
acl half10006 random 1/4
acl half10007 random 1/3
acl half10008 random 1/2
acl half10009 random 1/1
########################################
reply_header_add start "A" half10000
reply_header_add start "B" half10001
reply_header_add start "C" half10002
reply_header_add start "D" half10003
reply_header_add start "E" half10004
reply_header_add start "F" half10005
reply_header_add start "G" half10006
reply_header_add start "H" half10007
reply_header_add start "I" half10008
reply_header_add start "J" half10009
##############################
tcp_outgoing_address 12.13.100.1 half10000
tcp_outgoing_address 12.13.100.2 half10001
tcp_outgoing_address 12.13.100.3 half10002
tcp_outgoing_address 12.13.100.4 half10003
tcp_outgoing_address 12.13.100.5 half10004
tcp_outgoing_address 12.13.100.6 half10005
tcp_outgoing_address 12.13.100.7 half10006
tcp_outgoing_address 12.13.100.8 half10007
tcp_outgoing_address 12.13.100.9 half10008
tcp_outgoing_address 12.13.100.10 half10009



 curl -x 12.13.100.250:2000    -U hi:hi  ifconfig.io  -v

* Rebuilt URL to: ifconfig.io/
*   Trying 12.13.100.250...
* TCP_NODELAY set
* Connected to 12.13.100.250 (12.13.100.250) port 2000 (#0)
* Proxy auth using Basic with user 'hi'
> GET http://ifconfig.io/ HTTP/1.1
> Host: ifconfig.io
> Proxy-Authorization: Basic YmVuOmJlbg==
> User-Agent: curl/7.54.0
> Accept: */*
> Proxy-Connection: Keep-Alive
> 
< HTTP/1.1 200 OK
< Date: Wed, 17 Jul 2019 09:34:57 GMT
< Content-Type: text/plain; charset=utf-8
< Content-Length: 40
< Connection: keep-alive
< start: G
< start: F
< start: E
< start: E
< 
12.13.100.2 
* Connection #0 to host 12.13.100.250 left intact



another Hit :


 curl -x 12.13.100.250:2000    -U hi:hi  ifconfig.io  -v

* Rebuilt URL to: ifconfig.io/
*   Trying 12.13.100.250...
* TCP_NODELAY set
* Connected to 12.13.100.250 (12.13.100.250) port 2000 (#0)
* Proxy auth using Basic with user 'hi'
> GET http://ifconfig.io/ HTTP/1.1
> Host: ifconfig.io
> Proxy-Authorization: Basic YmVuOmJlbg==
> User-Agent: curl/7.54.0
> Accept: */*
> Proxy-Connection: Keep-Alive
> 
< HTTP/1.1 200 OK
< Date: Wed, 17 Jul 2019 09:34:57 GMT
< Content-Type: text/plain; charset=utf-8
< Content-Length: 40
< Connection: keep-alive
< start: F
< start: A
< start: J
< start: I
< 
12.13.100.6



so as you see above , i have multiple replied headers not single one .
and the replied header even are wrong .
so wrong multiple results i do recieve .


my questions is :

1- why mutiple replies do we recieve not single reply ?
2- why the recieved replies are wrong , i expect single reply based on my random acls we setup . ?

do we need other stuff with random acl to have it work with header directive ?




Thank You 


> On 17 Jul 2019, at 7:10, Alex Rousskov <rousskov at measurement-factory.com> wrote:
> 
> On 7/16/19 6:11 PM, --Ahmad-- wrote:
> 
>> Possible to user reply_header_add directive with acl random access list?
> 
> Yes, it is possible.
> 
> 
>> i read that reply_header_add only need fast acl and im not sure if random acl is fast/slow
> 
> The random ACL is fast. GitHub pull requests that add that missing info
> to the random ACL documentation in src/cf.data.pre are welcomed.
> https://wiki.squid-cache.org/MergeProcedure
> 
> Alex.
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