HAproxy增長日誌記錄功能和自定義日誌輸出內容、格式
一.增長haproxy日誌記錄功能html
1.1 因爲數據分析的須要，咱們必須打開haproxy日誌，記錄相關信息。linux
在配置前，咱們先來了解一下日誌的level:local0～local7 16～23保留爲本地使用nginx
emerg 0 系統不可用
alert 1 必須立刻採起行動的事件
crit 2 關鍵的事件
err 3 錯誤事件
warning 4 警告事件
notice 5 普通但重要的事件
info 6 有用的信息
debug 7 調試信息redis
1.2 實際配置：瀏覽器
########################################bash
vi haproxy.conf(在default處添加以下信息)
defaults
log global
option httplog
log 127.0.0.1 local3
########################################服務器
#######################################cookie
vi /etc/rsyslog.conf(添加以下內容)
local3.* /data/logs/haproxy.log
#######################################session
#######################################app
vi /etc/sysconfig/rsyslog
把SYSLOGD_OPTIONS="-m 0"
改爲 SYSLOGD_OPTIONS="-r -m 0 -c 2"
#######################################
相關解釋說明:
-r:打開接受外來日誌消息的功能,其監控514 UDP端口;
-x:關閉自動解析對方日誌服務器的FQDN信息,這能避免DNS不完整所帶來的麻煩;
-m:修改syslog的內部mark消息寫入間隔時間(0爲關閉),例如240爲每隔240分鐘寫入一次"--MARK--"信息;
-h:默認狀況下,syslog不會發送從遠端接受過來的消息到其餘主機,而使用該選項,則把該開關打開,全部
接受到的信息均可根據syslog.conf中定義的@主機轉發過去
配置完畢後重啓rsyslogd和haproxy便可.
日誌內容以下：
Sep 18 15:48:11 localhost haproxy[12124]: Proxy html-server started. Sep 18 15:48:11 localhost haproxy[12124]: Proxy html-server started. Sep 18 15:48:29 localhost haproxy[12125]: 10.69.112.139:59244 [18/Sep/2016:15:48:29.027] http-in html-server/html-A 0/0/0/0/0 200 254 - - --NI 0/0/0/0/0 0/0 "GET / HTTP/1.1" Sep 18 15:48:29 localhost haproxy[12125]: 10.69.112.139:59244 [18/Sep/2016:15:48:29.027] http-in html-server/html-A 0/0/0/0/0 200 254 - - --NI 0/0/0/0/0 0/0 "GET / HTTP/1.1" Sep 18 15:48:29 localhost haproxy[12125]: 10.69.112.139:59244 [18/Sep/2016:15:48:29.027] http-in html-server/html-A 0/0/0/0/0 200 254 - - --NI 0/0/0/0/0 0/0 "GET / HTTP/1.1"
但日誌可讀性不好，咱們須要顯示更多的信息，但默認的都捕獲不到，只能自定義須要顯示的內容了。
二.定義haproxy日誌輸出內容和格式
2.1自定義haproxy日誌。直接上配置文件。
global log 127.0.0.1 local3 info maxconn 4096 chroot /gomeo2o/haproxy uid haproxy gid haproxy daemon nbproc 1 description haproxy pidfile /var/run/haproxy.pid defaults log global # option httplog balance roundrobin mode http maxconn 4096 retries 3 option redispatch option forceclose option dontlognull option abortonclose stats uri /haproxy frontend http-in bind 0.0.0.0:80 mode http log global option httplog option httpclose acl html url_reg -i \.html$ use_backend html-server if html default_backend html-server #(( capture request header Host len 64 capture request header User-Agent len 128 capture request header X-Forwarded-For len 100 capture request header Referer len 200 capture response header Server len 40 capture response header Server-ID len 40 #capture捕獲信息 log-format %ci:%cp\ %si:%sp\ %B\ %U\ %ST\ %r\ %b\ %f\ %bi\ %hrl\ %hsl\ #log-forcat定義日誌需顯示內容(變量) #利用capture捕獲信息，log-forcat定義變量 #詳解請見2.1和2.2 #)) backend html-server mode http balance roundrobin option httpchk GET /index.html cookie SERVERID insert indirect nocache server html-A 10.69.112.150:80 weight 1 cookie 3 check inter 2000 rise 2 fall 5 server html-B 10.69.112.148:80 weight 1 cookie 4 check inter 2000 rise 2 fall 5
其餘參數在此不作過多解釋，主要查看兩個中括號之間的內容。
2.2 capture捕獲
haproxy利用capture捕獲請求(request)和響應(response)信息，具體需捕獲內容能夠作以下操做：
用瀏覽器訪問一個網站(我用的google),好比www.gomeplus.com,按F12，內容以下(注意我紅色框起來的部分)：
找到response headers項，這裏就是你能夠捕獲的信息。好比捕獲server和server-id：
capture response header Server len 40 capture response header Server-ID len 40
備註：2.1配置文件當中的capture基本的信息都能捕獲到了，若有特別需求，請查閱官網(capture到底能捕獲多少信息，多詳細，我也在查詢當中)。
2.3 定義log-format變量
定義示例：
log-format %T\ %t\ Some\ Text
log-format %{+Q}o\ %t\ %s\ %{-Q}r
請參閱下面的表爲定義的變量(轉自官方文檔)：
+---+------+-----------------------------------------------+-------------+
| R | var | field name (8.2.2 and 8.2.3 for description) | type |
+---+------+-----------------------------------------------+-------------+
| | %o | special variable, apply flags on all next var | |
+---+------+-----------------------------------------------+-------------+
| | %B | bytes_read (from server to client) | numeric |
| H | %CC | captured_request_cookie | string |
| H | %CS | captured_response_cookie | string |
| | %H | hostname | string |
| H | %HM | HTTP method (ex: POST) | string |
| H | %HP | HTTP request URI without query string (path) | string |
| H | %HQ | HTTP request URI query string (ex: ?bar=baz) | string |
| H | %HU | HTTP request URI (ex: /foo?bar=baz) | string |
| H | %HV | HTTP version (ex: HTTP/1.0) | string |
| | %ID | unique-id | string |
| | %ST | status_code | numeric |
| | %T | gmt_date_time | date |
| | %Tc | Tc | numeric |
| | %Td | Td = Tt - (Tq + Tw + Tc + Tr) | numeric |
| | %Tl | local_date_time | date |
| H | %Tq | Tq | numeric |
| H | %Tr | Tr | numeric |
| | %Ts | timestamp | numeric |
| | %Tt | Tt | numeric |
| | %Tw | Tw | numeric |
| | %U | bytes_uploaded (from client to server) | numeric |
| | %ac | actconn | numeric |
| | %b | backend_name | string |
| | %bc | beconn (backend concurrent connections) | numeric |
| | %bi | backend_source_ip (connecting address) | IP |
| | %bp | backend_source_port (connecting address) | numeric |
| | %bq | backend_queue | numeric |
| | %ci | client_ip (accepted address) | IP |
| | %cp | client_port (accepted address) | numeric |
| | %f | frontend_name | string |
| | %fc | feconn (frontend concurrent connections) | numeric |
| | %fi | frontend_ip (accepting address) | IP |
| | %fp | frontend_port (accepting address) | numeric |
| | %ft | frontend_name_transport ('~' suffix for SSL) | string |
| | %lc | frontend_log_counter | numeric |
| | %hr | captured_request_headers default style | string |
| | %hrl | captured_request_headers CLF style | string list |
| | %hs | captured_response_headers default style | string |
| | %hsl | captured_response_headers CLF style | string list |
| | %ms | accept date milliseconds (left-padded with 0) | numeric |
| | %pid | PID | numeric |
| H | %r | http_request | string |
| | %rc | retries | numeric |
| | %rt | request_counter (HTTP req or TCP session) | numeric |
| | %s | server_name | string |
| | %sc | srv_conn (server concurrent connections) | numeric |
| | %si | server_IP (target address) | IP |
| | %sp | server_port (target address) | numeric |
| | %sq | srv_queue | numeric |
| S | %sslc| ssl_ciphers (ex: AES-SHA) | string |
| S | %sslv| ssl_version (ex: TLSv1) | string |
| | %t | date_time (with millisecond resolution) | date |
| | %ts | termination_state | string |
| H | %tsc | termination_state with cookie status | string |
+---+------+-----------------------------------------------+-------------+
最後查看定義以後的日誌內容輸出：
Sep 20 17:06:12 localhost haproxy[16372]: 10.69.112.139:39957 10.69.112.148:80 2614 179 200 GET / HTTP/1.1 html-server http-in 10.69.112.151 www.qiang999.com curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2 - - nginx/1.9.8 -\ Sep 20 17:06:12 localhost haproxy[16372]: 10.69.112.139:39957 10.69.112.148:80 2614 179 200 GET / HTTP/1.1 html-server http-in 10.69.112.151 www.qiang999.com curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2 - - nginx/1.9.8 -\ Sep 20 17:06:12 localhost haproxy[16372]: 10.69.112.139:39966 10.69.112.150:80 254 179 200 GET / HTTP/1.1 html-server http-in 10.69.112.151 www.qiang999.com curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2 - - nginx/1.9.8 -\ Sep 20 17:06:12 localhost haproxy[16372]: 10.69.112.139:39966 10.69.112.150:80 254 179 200 GET / HTTP/1.1 html-server http-in 10.69.112.151 www.qiang999.com curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2 - - nginx/1.9.8 -\ Sep 20 17:06:13 localhost haproxy[16372]: 10.69.112.139:39974 10.69.112.148:80 2614 179 200 GET / HTTP/1.1 html-server http-in 10.69.112.151 www.qiang999.com curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2 - - nginx/1.9.8 -\
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