Re: [squid-users] A simple external helper error

On 30/11/2012 7:46 p.m., John Xue wrote:
> Hi,
>
> I try to write a simple external helper for test.
>
> #!/bin/bash
> while read ip ; do
> if [ -e /tmp/test.err ] ; then
> echo "ERR"
> else
> echo "OK"
> fi
> done
>
> squid.conf
>
> external_acl_type test_helper ttl=0 negative_ttl=0 grace=0 %SRC
> /usr/lib64/squid/test.sh
> acl testacl external test_helper
>
> acl site1 dst 10.1.6.1
>
> cache_peer proxy1.example.com parent 3128 0 name=P1 no-digest no-query
> cache_peer proxy2.example.com parent 3128 0 name=P2 no-digest no-query
>
> cache_peer_access P1 deny site1 testacl
> cache_peer_access P1 allow all
> cache_peer_access P2 allow all
>
> My plan is let site1 go through P1 proxy when exist /tmp/test.err
> file. But I'm fail because I found squid didn't check testacl.
> 0 requests in External ACL Statistics
> # FD PID # Requests # Pending Flags Time Offset Request
> 1 38 21919 0 0 0.000 0 (none)
> 2 39 21920 0 0 0.000 0 (none)
>
> But I configure like this:
>
> external_acl_type test_helper ttl=0 negative_ttl=0 grace=0 %SRC
> /usr/lib64/squid/test.sh
> acl testacl external test_helper
> http_access testacl all
> .
> .
> cache_peer_access P1 deny site1 testacl
> cache_peer_access P1 allow all
>
> It work. so, I think maybe external helper can't work first with
> cache_peer_access?

Please read http://wiki.squid-cache.org/SquidFaq/SquidAcl#Fast_and_Slow_ACLs

"dst" and "external" type ACLs are both async/'slow' ACLs.

Amos
Received on Fri Nov 30 2012 - 07:00:16 MST