haproxy启动失败Jul 26 10:37:55 centos7 haproxy-systemd-wrapper: [ALERT] 207/103755 (

admin

Jul 26 10:37:55 centos7 haproxy-systemd-wrapper: [ALERT] 207/103755 (2730) : Starting proxy Stats: cannot bind socket [0.0.0.0:10000]
修改内核参数 增加一条语句 启动haproxy的时候，允许忽视VIP的存在
vim /etc/sysctl.conf
  b2 o9 w- v! z4 o. p4 a& ], o4 Hnet.ipv4.ip_nonlocal_bind = 1

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admin

执行命令，让其生效：
sysctl -p
' a. v! M% N  j$ Pnet.ipv4.ip_nonlocal_bind = 1

admin

Jul 26 10:46:26 centos7 systemd[1]: Started HAProxy Load Balancer.
2 G" C, ?8 ?) d3 |Jul 26 10:46:26 centos7 systemd[1]: Starting HAProxy Load Balancer...
9 t0 |9 Z' l1 J! S7 fJul 26 10:46:26 centos7 haproxy-systemd-wrapper[2744]: haproxy-systemd-wrapper: executing /usr/sbin/haproxy ...-Ds
Jul 26 10:46:26 centos7 haproxy-systemd-wrapper[2744]: [WARNING] 207/104626 (2745) : config : 'option forwar...de.
  f* H0 f. c9 {8 H- s- y; wJul 26 10:46:26 centos7 haproxy-systemd-wrapper[2744]: [ALERT] 207/104626 (2745) : Starting proxy Stats: can...00]
# G7 d+ v+ X* ~; @Jul 26 10:46:26 centos7 haproxy-systemd-wrapper[2744]: [ALERT] 207/104626 (2745) : Starting proxy mariadb_cl...06]
% a- y9 p% V% I9 \4 }Jul 26 10:46:26 centos7 haproxy-systemd-wrapper[2744]: haproxy-systemd-wrapper: exit, haproxy RC=1
Jul 26 10:46:26 centos7 systemd[1]: haproxy.service: main process exited, code=exited, status=1/FAILURE
0 x' o9 @+ ^2 QJul 26 10:46:26 centos7 systemd[1]: Unit haproxy.service entered failed state.
6 k7 ?6 Y7 d9 O  {* |Jul 26 10:46:26 centos7 systemd[1]: haproxy.service failed.
Hint: Some lines were ellipsized, use -l to show in full.
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主要是修改内核参数进行限制：
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在sysctl.conf文件中加入些参数：

net.ipv4.ip_nonlocal_bind = 1
( `$ P( e4 C: {" u4 a) h, hnet.nf_conntrack_max=1048576
net.ipv4.tcp_keepalive_intvl = 3
& |, Z" ?0 b7 y( m! h6 lnet.ipv4.tcp_keepalive_time = 60
4 q- i/ K; ?3 I# a1 X, Snet.ipv4.tcp_keepalive_probes = 8



& S( Z6 F1 a6 _% y) T: T0 L8 S执行下
+ S! i/ L$ H* vsysctl -p
+ E* k# B' |0 f3 n) ?8 ]
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重启haproxy服务即可
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