squid: DNS tuning

[chef.git] / cookbooks / squid / templates / default / squid.conf.erb

diff --git a/cookbooks/squid/templates/default/squid.conf.erb b/cookbooks/squid/templates/default/squid.conf.erb
index 2861daa92a9d4b739a4a2c40ff2288d89c3a4899..f752fc5bdda43be48eb0469393e5a9d0c0947d96 100644 (file)
--- a/cookbooks/squid/templates/default/squid.conf.erb
+++ b/cookbooks/squid/templates/default/squid.conf.erb
@@ -1,36 +1,49 @@
 # DO NOT EDIT - This file is being maintained by Chef
 
 # DO NOT EDIT - This file is being maintained by Chef
 

-#configure host name
+# configure host name

 visible_hostname <%= node.name %>
 
 visible_hostname <%= node.name %>
 

-#FIXME - configurable

 cache_mem  <%= node[:squid][:cache_mem] %>
 cache_mem  <%= node[:squid][:cache_mem] %>

+<% if node[:squid][:version] > 2 -%>
+
+workers <%= node[:cpu][:total] %>
+
+error_log_languages off
+<% end -%>

 
 max_filedescriptors 98304
 
 
 max_filedescriptors 98304
 

-#used by squidclient / munin
+<% if node[:squid][:version] > 3 -%>
+# Use RFC6891 recommended max size
+dns_packet_max 4096
+# Use low initial retry interval (backoff start)
+dns_retransmit_interval 2 seconds
+# Set low timeout
+dns_timeout 15 seconds
+<% end -%>
+
+# used by squidclient / munin

 http_port 3128
 http_port 3128

-#ICP
+# HTCP
+htcp_port 4827
+# ICP

 icp_port 3130
 log_icp_queries off
 
 icp_port 3130
 log_icp_queries off
 

-#FIXME - configurable
+# FIXME - configurable

 <% if node[:squid][:version] < 3 -%>
 http_port 80 accel defaultsite=tile.openstreetmap.org tcpkeepalive=60,10,6 http11
 <% else -%>
 http_port 80 accel no-vhost defaultsite=tile.openstreetmap.org tcpkeepalive=60,10,6
 <% if node[:squid][:version] < 3 -%>
 http_port 80 accel defaultsite=tile.openstreetmap.org tcpkeepalive=60,10,6 http11
 <% else -%>
 http_port 80 accel no-vhost defaultsite=tile.openstreetmap.org tcpkeepalive=60,10,6

-
-#prefer IPv4 until everything is upgraded
-dns_v4_first on

 <% end -%>
 
 cache_effective_user proxy
 cache_effective_group proxy
 
 <% end -%>
 
 cache_effective_user proxy
 cache_effective_group proxy
 

-#FIXME - configurable

 <% Array(node[:squid][:cache_dir]).each do |cache_dir| -%>
 cache_dir <%= cache_dir %>
 <% end -%>
 <% Array(node[:squid][:cache_dir]).each do |cache_dir| -%>
 cache_dir <%= cache_dir %>
 <% end -%>

+

 <% if node[:squid][:version] < 3 -%>
 cache_swap_log /var/spool/squid/%s
 <% end -%>
 <% if node[:squid][:version] < 3 -%>
 cache_swap_log /var/spool/squid/%s
 <% end -%>


@@ -42,21 +55,25 @@ quick_abort_max 0 KB
 
 read_ahead_gap 64 KB
 
 
 read_ahead_gap 64 KB
 

-maximum_object_size 1048576 bytes
+maximum_object_size 256 KB

 maximum_object_size_in_memory 64 KB
 
 cache_replacement_policy heap LFUDA
 memory_replacement_policy heap GDSF
 
 server_persistent_connections on
 maximum_object_size_in_memory 64 KB
 
 cache_replacement_policy heap LFUDA
 memory_replacement_policy heap GDSF
 
 server_persistent_connections on

+<% if node[:squid][:version] < 3 -%>

 persistent_request_timeout 1 minutes
 persistent_request_timeout 1 minutes

+<% else -%>
+client_idle_pconn_timeout 1 minutes
+<% end -%>
+<% if node[:squid][:version] > 3 -%>
+pconn_lifetime 5 minutes
+<% end -%>

 
 negative_ttl 15 seconds
 
 negative_ttl 15 seconds

-half_closed_clients off

 <% if node[:squid][:version] < 3 -%>
 pipeline_prefetch on
 <% if node[:squid][:version] < 3 -%>
 pipeline_prefetch on

-<% else -%>
-pipeline_prefetch 1

 <% end -%>
 
 read_timeout 90 seconds
 <% end -%>
 
 read_timeout 90 seconds


@@ -64,15 +81,12 @@ request_timeout 90 seconds
 connect_timeout 20 seconds
 client_lifetime 1 hours
 
 connect_timeout 20 seconds
 client_lifetime 1 hours
 

-<% if node[:squid][:version] < 4 -%>
-collapsed_forwarding on
-<% end -%>

 <% if node[:squid][:version] < 3 -%>
 refresh_stale_hit 300 seconds
 <% end -%>
 
 <% if node[:squid][:version] < 3 -%>
 refresh_stale_hit 300 seconds
 <% end -%>
 

-#Recommended minimum configuration:
-#----------------------------------
+# Recommended minimum configuration:
+# ----------------------------------

 <% if node[:squid][:version] < 3 -%>
 acl all src all
 acl manager proto cache_object
 <% if node[:squid][:version] < 3 -%>
 acl all src all
 acl manager proto cache_object


@@ -98,7 +112,7 @@ http_access allow manager
 http_access deny manager
 http_access deny !Safe_ports
 http_access deny CONNECT !SSL_ports
 http_access deny manager
 http_access deny !Safe_ports
 http_access deny CONNECT !SSL_ports

-#----------------------------------
+# ----------------------------------

 
 acl purge_hosts src 127.0.0.0/8
 acl PURGE method purge
 
 acl purge_hosts src 127.0.0.0/8
 acl PURGE method purge


@@ -132,16 +146,16 @@ digest_generation on
 
 refresh_pattern .              0       50%     8640
 
 
 refresh_pattern .              0       50%     8640
 

-#ZERO required for logrotate to work properly
+# ZERO required for logrotate to work properly

 logfile_rotate 0
 
 <% Dir.glob("/etc/squid/squid.conf.d/*.conf") do |file| -%>
 <%= File.read(file) %>
 <% end -%>
 
 logfile_rotate 0
 
 <% Dir.glob("/etc/squid/squid.conf.d/*.conf") do |file| -%>
 <%= File.read(file) %>
 <% end -%>
 

-#MUST BE LAST ACL
-#--------------
+# MUST BE LAST ACL
+# --------------

 http_access deny all
 http_access deny all

+htcp_access deny all

 icp_access deny all
 icp_access deny all

-#--------------
-
+# --------------