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 918c7b5314d5fed1a35f1bd2de1345f4addd47ba..f752fc5bdda43be48eb0469393e5a9d0c0947d96 100644 (file)
--- a/cookbooks/squid/templates/default/squid.conf.erb
+++ b/cookbooks/squid/templates/default/squid.conf.erb
@@ -1,32 +1,50 @@
 # DO NOT EDIT - This file is being maintained by Chef
 
-#FIXME - configurable
+# configure host name
+visible_hostname <%= node.name %>
+
 cache_mem  <%= node[:squid][:cache_mem] %>
+<% if node[:squid][:version] > 2 -%>
+
+workers <%= node[:cpu][:total] %>
+
+error_log_languages off
+<% end -%>
 
 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
-#ICP
+# HTCP
+htcp_port 4827
+# ICP
 icp_port 3130
 log_icp_queries off
 
-#FIXME - configurable
-<% if node[:squid][:version] == "2" -%>
+# 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
-
-#prefer IPv4 until everything is upgraded
-dns_v4_first on
 <% end -%>
 
 cache_effective_user proxy
 cache_effective_group proxy
 
-#FIXME - configurable
-cache_dir <%= node[:squid][:cache_dir] %>
-<% if node[:squid][:version] == "2" -%>
+<% 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 -%>
 
@@ -37,21 +55,25 @@ quick_abort_max 0 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
+<% if node[:squid][:version] < 3 -%>
 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
-half_closed_clients off
-<% if node[:squid][:version] == "2" -%>
+<% if node[:squid][:version] < 3 -%>
 pipeline_prefetch on
-<% else -%>
-pipeline_prefetch 1
 <% end -%>
 
 read_timeout 90 seconds
@@ -59,14 +81,13 @@ request_timeout 90 seconds
 connect_timeout 20 seconds
 client_lifetime 1 hours
 
-collapsed_forwarding on
-<% if node[:squid][:version] == "2" -%>
+<% if node[:squid][:version] < 3 -%>
 refresh_stale_hit 300 seconds
 <% end -%>
 
-#Recommended minimum configuration:
-#----------------------------------
-<% if node[:squid][:version] == "2" -%>
+# Recommended minimum configuration:
+# ----------------------------------
+<% if node[:squid][:version] < 3 -%>
 acl all src all
 acl manager proto cache_object
 acl localhost src 127.0.0.1/32
@@ -91,7 +112,7 @@ http_access allow manager
 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
@@ -101,7 +122,7 @@ http_access deny purge
 forwarded_for on
 follow_x_forwarded_for allow localhost
 
-<% if node[:squid][:version] == "2" -%>
+<% if node[:squid][:version] < 3 -%>
 logformat openstreetmap %ts.%03tu %tr %>a %Ss/%03Hs %<st %rm %rp %Sh/%<A %mt "%{Referer}>h" "%{User-Agent}>h"
 access_log <%= node[:squid][:access_log] %>
 <% else -%>
@@ -113,7 +134,7 @@ cache_store_log none
 buffered_logs on
 client_db off
 strip_query_terms off
-<% if node[:squid][:version] == "3" -%>
+<% if node[:squid][:version] > 2 -%>
 # Work around bug in squid 3 that causes log_fqdn to be
 # turned on by some of the (unused by us) default formats:
 # http://lists.squid-cache.org/pipermail/squid-users/2016-February/thread.html#8999
@@ -125,16 +146,16 @@ digest_generation on
 
 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 -%>
 
-#MUST BE LAST ACL
-#--------------
+# MUST BE LAST ACL
+# --------------
 http_access deny all
+htcp_access deny all
 icp_access deny all
-#--------------
-
+# --------------