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我認爲我在HAProxy conf中做了一些錯誤,因爲在使用HAProxy和單個AWS實例完成的實際測試中,吞吐量下降到25%。以下是我的相關(非常簡單)配置:HAProxy遞減吞吐量
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 20000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 30000
frontend localnodes
bind *:80
mode http
default_backend nodes
backend nodes
mode http
balance roundrobin
hash-type consistent
option httpchk /health
server w1 xx.xx.xx.xx:80 check id 1
我已啓用日誌記錄。日誌中的典型條目如下所示:
Dec 2 09:29:05 localhost haproxy[2782]: xx.xx.xx.xx:43908
[02/Dec/2016:09:29:05.940] localnodes nodes/w1 38/0/0/1/41 200 130 - -
---- 36/36/12/2/0 0/0 "GET /ep?key=123&message=XXQSYI HTTP/1.1" Dec 2 09:29:05 localhost haproxy[2782]: xx.xx.xx.xx:43920
[02/Dec/2016:09:29:05.941] localnodes nodes/web01 39/0/0/0/40 200 160
- - ---- 35/35/11/0/0 0/0 "GET /q1?key=123&val=123 HTTP/1.1" Dec 2 09:29:05 localhost haproxy[2782]: xx.xx.xx.xx:43933
[02/Dec/2016:09:29:05.955] localnodes nodes/web01 24/0/0/1/26 200 134
- - ---- 34/34/11/1/0 0/0 "GET /q1?key=123&val=123 HTTP/1.1"
我的吞吐量是我的實例的直接流量的25%。這是糟糕的表現。我做錯了什麼嗎?
編輯 下鄉日誌,一些日誌清楚地顯示,從HAProxy的到達服務器採取時間過高
Dec 2 10:56:59 localhost haproxy[25988]: xx.xx.xx.xx:39789 [02/Dec/2016:10:56:58.729] main app/app1 0/0/1000/1/1002 200 449 - - ---- 13/13/13/7/0 0/0 "GET/HTTP/1.1"
Dec 2 10:56:59 localhost haproxy[25988]: xx.xx.xx.xx:39803 [02/Dec/2016:10:56:58.730] main app/app1 0/0/999/1/1000 200 377 - - ---- 12/12/12/7/0 0/0 "GET/HTTP/1.1"
Dec 2 10:56:59 localhost haproxy[25988]: xx.xx.xx.xx:39804 [02/Dec/2016:10:56:58.730] main app/app1 0/0/999/1/1000 200 277 - - ---- 11/11/11/7/0 0/0 "GET/HTTP/1.1"