squid 3キャッシュサーバのコンパイルインストールと高命中率の構成例

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スクウェア3 キャッシュサーバコンパイル設定

今日は私のvarnishに対して小さなストレステストを行いました。40 sの中の8000合併は失敗していません。もっと大きな合併に耐えるかもしれません。varnishはともかく、最近命中率が高いsquidの配置ファイルを見つけました。もちろんsquid 3.0の配置ファイルです。必要なcopyは自分で変えられます。
システム：centos 5.x
必要なソフトウェア：squid-3.0.STABLE 25.5 tar.gz
1.squidをダウンロードする



wget http://www.squid-cache.org/Versions/v3/3.0/squid-3.0.STABLE25.tar.gz

tar zxf squid-3.0.STABLE25.tar.gz && cd squid-3.0.STABLE25

2.squidをコンパイルする



./configure --prefix=/usr/local/squid \

--enable-async-io=100 \

--with-pthreads \

--enable-storeio="aufs,diskd,ufs" \

--enable-removal-policies="heap,lru" \

--enable-icmp \

--enable-delay-pools \

--enable-useragent-log \

--enable-referer-log \

--enable-kill-parent-hack \

--enable-arp-acl \

--enable-default-err-language=Simplify_Chinese \

--enable-err-languages="Simplify_Chinese English" \

--disable-poll \

--disable-wccp \

--disable-wccpv2 \

--disable-ident-lookups \

--disable-internal-dns \

--enable-basic-auth-helpers="NCSA" \

--enable-stacktrace \

--with-large-files \

--disable-mempools \

--with-filedescriptors=65536 \

--enable-ssl \

--enable-x-accelerator-var
make

make install

make install-pinger

3.スクウェアの設定



cp /usr/local/squid/etc/squid.conf /usr/local/squid/etc/squid.conf.old

>/usr/local/squid/etc/squid.conf

ln -s /usr/local/squid/etc/squid.conf /etc/squid.conf

squid.com nfの内容：



#accel listen port

http_port 80 accel vhost vport

#accel domain

cache_peer xx.xx.xx.xx parent 80 0 no-query originserver no-digest name=a

cache_peer_domain a blog.slogra.com

 

#acl

acl manager proto cache_object

acl localhost src 127.0.0.1/255.255.255.255

acl SSL_ports port 443 563

acl Safe_ports port 80       # http

acl Safe_ports port 8080

acl LanSrc src all

acl LanDst dst all

acl LanDstDM dstdomain blog.slogra.com

 

acl CONNECT method CONNECT

http_access allow manager localhost

http_access deny manager

http_access deny !Safe_ports

http_access deny CONNECT !SSL_ports

http_access allow LanSrc

http_access allow LanDst

http_access allow LanDstDM

http_access deny   all

 

#base

visible_hostname blog.slogra.com

cache_mgr [email protected]

cache_effective_user squid

cache_effective_group squid

 

error_directory /usr/local/squid/share/errors/Simplify_Chinese

icon_directory /usr/local/squid/share/icons

mime_table /usr/local/squid/etc/mime.conf

 

cache_replacement_policy lru

#cache_dir

cache_dir aufs /var/cache1 32768 64 64

cache_dir aufs /var/cache2 32768 64 64

cache_mem 2048 MB

max_open_disk_fds 0

#maximum_object_size 512 KB

#maximum_object_size_in_memory 256 KB

maximum_object_size 20 MB

maximum_object_size_in_memory 8 MB

 

#keepalived

client_persistent_connections off

server_persistent_connections on

#persistent_request_timeout 60 seconds

 

#memory_pools on

#memory_pools_limit 64 MB

 

forwarded_for on

log_icp_queries off

 

via off

httpd_suppress_version_string off

 

ie_refresh off

tcp_recv_bufsize 32 KB

 

#acl webservices rep_header Server -i ^linuxtoneWS ^Apache ^nginx

#broken_vary_encoding allow webservices

 

#hidden the squid header

#reply_header_access Server deny all

#reply_header_access X-Cache deny all

#reply_header_access Warning deny all

#reply_header_access Expires deny all

#reply_header_access Cache-Control deny all

#reply_header_access age deny all

#reply_header_access All deny all

 

ipcache_size 1024

ipcache_low 90

ipcache_high 95

 

memory_replacement_policy lru

 

hosts_file /etc/hosts

request_header_max_size 128 KB

 

#deny cache

hierarchy_stoplist cgi-bin ? \.php

acl QUERY urlpath_regex cgi-bin\? \.php

cache deny QUERY

 

#request_body_max_size 0 KB

 

refresh_pattern ^ftp:           60      20%     10080

refresh_pattern ^gopher:        60      0%      1440

refresh_pattern .               0       20%     1440

refresh_pattern -i \.css$       360    50%     2880    reload-into-ims

refresh_pattern -i \.js$        1440    50%     2880    reload-into-ims

refresh_pattern -i \.html$        720   50%     1440    reload-into-ims

refresh_pattern -i \.jpg$       1440    90%     2880    ignore-reload

refresh_pattern -i \.gif$       1440    90%     2880    ignore-reload

refresh_pattern -i \.swf$       1440    90%     2880    ignore-reload

refresh_pattern -i \.jpg$       1440      50%     2880    ignore-reload

refresh_pattern -i \.png$       1440      50%     2880      ignore-reload

refresh_pattern -i \.bmp$       1440      50%     2880      ignore-reload

 

refresh_pattern -i \.doc$ 1440    50%     2880      ignore-reload

refresh_pattern -i \.ppt$ 1440    50%     2880      ignore-reload

refresh_pattern -i \.xls$ 1440    50%     2880      ignore-reload

refresh_pattern -i \.pdf$ 1440    50%     2880      ignore-reload

refresh_pattern -i \.rar$       1440    50%     2880      ignore-reload

refresh_pattern -i \.zip$ 1440    50%     2880      ignore-reload

refresh_pattern -i \.txt$ 1440    50%     2880      ignore-reload

 

quick_abort_min 20 KB

quick_abort_max 20 KB

quick_abort_pct 95

 

connect_timeout 1 minute

negative_ttl 0 minutes

read_timeout 30 seconds

pconn_timeout 120 seconds

shutdown_lifetime 5 seconds

strip_query_terms off

 

#snmp

#snmp_port 3401

#acl snmppublic snmp_orgmunity snsimg

#snmp_access allow snmppublic localhost

#snmp_access deny all

 

icp_port 0

 

# logfile

emulate_httpd_log on

#logformat combined %{X-Forwarded-For}>h %ui %un [%tl] “%rm %ru HTTP/%rv” %Hs %<st “%{Referer}>h” “%{User-Agent}>h” %Ss:%Sh

#access_log none

#access_log /data/logs/access.log combined

logformat squid  %ts.%03tu %6tr %>a %Ss/%03Hs %<st %rm %ru %un %Sh/%<A %mt

access_log /var/log/squid/access.log squid

#cache_store_log /var/log/squid/store.log

cache_store_log /dev/null

cache_log /var/log/squid/cache.log

logfile_rotate 12

 

# MISCELLANEOUS

store_objects_per_bucket 15

client_db off

4.ディレクトリの作成



/usr/sbin/groupadd squid

/usr/sbin/useradd -g squid squid

mkdir -p /var/log/squid

chown -R squid:squid /var/log/squid

mkdir -p /var/{cache1,cache2}

chown -R squid:squid /var/{cache1,cache2}

squidのcacheディレクトリを初期化します。



/usr/local/squid/sbin/squid -z

squidを起動します



/usr/local/squid/sbin/squid -D

このような起动方式が気に入らないなら、自分でsquidの起动台本を探してもいいです。ここでは出しません。squidが起动したら、次のコマンドを使って命中率を调べられます。



/usr/local/squid/bin/squidclient -p 80 mgr:info

はい、具体的に他のスクウェアの使用命令は自分で調べるしかないです。ここに来ます。