目的：测试Haproxy压测情况
环境：
Ha服务器：8核16G虚机，后端6个2核4G，压测客户端3个2核4G
安装和优化：
一、Haproxy
#cd /opt/soft
#wget http://www.haproxy.org/download/1.8/src/haproxy-1.8.14.tar.gz
#tar zxvf haproxy-1.8.14.tar.gz
#cd haproxy-1.8.14
安装：
#make TARGET=linux2628 ARCH=X86_64 PREFIX=/usr/local/haproxy
#make install PREFIX=/usr/local/haproxy
添加用户：
#useradd -s /sbin/nologin -M haproxy
id haproxy
#mkdir /etc/haproxy/
配置systemctl
#cp /opt/soft/haproxy-1.8.14/examples/haproxy.init /etc/init.d/haproxy
#chmod +x /etc/init.d/haproxy
#vi /etc/init.d/haproxy
/etc/init.d/haproxy
#!/bin/sh
#
# chkconfig: - 85 15
# description: HA-Proxy is a TCP/HTTP reverse proxy which is particularly suited \
# for high availability environments.
# processname: haproxy
# config: /etc/haproxy/haproxy.cfg
# pidfile: /var/run/haproxy.pid # Source function library.
if [ -f /etc/init.d/functions ]; then
. /etc/init.d/functions
elif [ -f /etc/rc.d/init.d/functions ] ; then
. /etc/rc.d/init.d/functions
else
exit 0
fi # Source networking configuration.
. /etc/sysconfig/network # Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0 # This is our service name
BASENAME=`basename $0`
if [ -L $0 ]; then
BASENAME=`find $0 -name $BASENAME -printf %l`
BASENAME=`basename $BASENAME`
fi BIN=/usr/sbin/$BASENAME CFG=/etc/$BASENAME/$BASENAME.cfg
[ -f $CFG ] || exit 1 PIDFILE=/var/run/$BASENAME.pid
LOCKFILE=/var/lock/subsys/$BASENAME RETVAL=0 start() {
quiet_check
if [ $? -ne 0 ]; then
echo "Errors found in configuration file, check it with '$BASENAME check'."
return 1
fi echo -n "Starting $BASENAME: "
daemon $BIN -D -f $CFG -p $PIDFILE
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch $LOCKFILE
return $RETVAL
} stop() {
echo -n "Shutting down $BASENAME: "
killproc $BASENAME -USR1
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f $LOCKFILE
[ $RETVAL -eq 0 ] && rm -f $PIDFILE
return $RETVAL
} restart() {
quiet_check
if [ $? -ne 0 ]; then
echo "Errors found in configuration file, check it with '$BASENAME check'."
return 1
fi
stop
start
} reload() {
if ! [ -s $PIDFILE ]; then
return 0
fi quiet_check
if [ $? -ne 0 ]; then
echo "Errors found in configuration file, check it with '$BASENAME check'."
return 1
fi
$BIN -D -f $CFG -p $PIDFILE -sf $(cat $PIDFILE)
} check() {
$BIN -c -q -V -f $CFG
} quiet_check() {
$BIN -c -q -f $CFG
} rhstatus() {
status $BASENAME
} condrestart() {
[ -e $LOCKFILE ] && restart || :
} # See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
reload)
reload
;;
condrestart)
condrestart
;;
status)
rhstatus
;;
check)
check
;;
*)
echo $"Usage: $BASENAME {start|stop|restart|reload|condrestart|status|check}"
exit 1
esac exit $?
Haproxy配置：
global
group root
user root
daemon
nbproc 7
log 127.0.0.1 local3
pidfile /var/run/haproxy/pid/haproxy.pid
ulimit-n 1000000 ##这里增大文件打开数
max-spread-checks 1000ms
maxconn 3000000 ##这里放开限制
maxconnrate 3000000
maxsessrate 3000000
#maxsslconn 3000000
#maxsslrate 3000000
spread-checks 20
stats timeout 60s
stats maxconn 500
stats socket /var/run/haproxy/sock/haproxy.sock mode 600 level admin process 1 #---------------------------------------------------------------------
# common defaults that all the 'listen' and 'backend' sections will
# use if not designated in their block
#---------------------------------------------------------------------
defaults
mode http
#mode tcp
maxconn 3000000 ##这里最好与上面一致，否则默认限制2000，找了好久
option abortonclose
option redispatch
option forwardfor
balance roundrobin
log 127.0.0.1 local3 err
retries 3
option clitcpka
option srvtcpka
#---------------------------------------------------------------------
# main frontend which proxys to the backends
#---------------------------------------------------------------------
listen 172.28.20.102:81
balance roundrobin
bind *:81
option tcp-check
option httplog
#option dontlognull
#test
timeout http-keep-alive 70s
timeout http-request 70s
timeout connect 100000
timeout queue 100000
timeout client 100000
timeout server 100000
timeout check 100000
cookie SERVERID insert indirect nocache
server 105_1 172.28.20.105:8282 check
server 105_2 172.28.20.105:8283 check
server 105_3 172.28.20.105:8284 check
server 105_4 172.28.20.105:8285 check
server 105_5 172.28.20.105:8286 check
server 105_6 172.28.20.105:8287 check
server 108_1 172.28.20.108:8282 check
server 108_2 172.28.20.108:8283 check
server 108_3 172.28.20.108:8284 check
server 108_4 172.28.20.108:8285 check
server 108_5 172.28.20.108:8286 check
server 108_6 172.28.20.108:8287 check
server 167_1 172.28.16.167:8282 check
server 167_2 172.28.16.167:8283 check
server 167_3 172.28.16.167:8284 check
server 168_1 172.28.16.168:8282 check
server 168_2 172.28.16.168:8283 check
server 168_3 172.28.16.168:8284 check
server 169_1 172.28.16.169:8282 check
server 169_2 172.28.16.169:8283 check
server 169_3 172.28.16.169:8284 check
server 170_1 172.28.16.170:8282 check
server 170_2 172.28.16.170:8283 check
server 170_3 172.28.16.170:8284 check
#内核参数优化（haproxy，后端服务器，客户端均要）
#vi /etc/sysctl.conf
### 系统中所允许的文件句柄的最大数目
fs.file-max = 12553500
### 单个进程所允许的文件句柄的最大数目
fs.nr_open = 12453500
### 内核允许使用的共享内存大 Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296
###单个共享内存段的最大值 Controls the maximum shared segment size, in bytes
kernel.shmmax = 68719476736
### 内核中消息队列中消息的最大值 Controls the maximum size of a message, in bytes
kernel.msgmax = 65536
### 系统救援工具
kernel.sysrq = 0
### 在每个网络接口接收数据包的速率比内核处理这些包的速率快时，允许送到缓存队列的数据包的最大数目
net.core.netdev_max_backlog = 2000000
### 默认的TCP数据接收窗口大小（字节）
net.core.rmem_default = 699040
### 最大的TCP数据接收窗口（字节）
net.core.rmem_max = 50331648
### 默认的TCP数据发送窗口大小（字节）
net.core.wmem_default = 131072
### 最大的TCP数据发送窗口（字节）
net.core.wmem_max = 33554432
### 定义了系统中每一个端口最大的监听队列的长度，这是个全局的参数
net.core.somaxconn = 65535 ### TCP/UDP协议允许使用的本地端口号
net.ipv4.ip_local_port_range = 15000 65000
net.ipv4.ip_nonlocal_bind = 1
### 对于本端断开的socket连接，TCP保持在FIN-WAIT-2状态的时间（秒）
net.ipv4.tcp_fin_timeout = 7
### TCP发送keepalive探测消息的间隔时间（秒），用于确认TCP连接是否有效
net.ipv4.tcp_keepalive_time = 300
net.ipv4.tcp_max_orphans = 3276800
### 对于还未获得对方确认的连接请求，可保存在队列中的最大数目
net.ipv4.tcp_max_syn_backlog = 655360
net.ipv4.tcp_max_tw_buckets = 6000000
### 确定TCP栈应该如何反映内存使用，每个值的单位都是内存页（通常是4KB）
### 第一个值是内存使用的下限；第二个值是内存压力模式开始对缓冲区使用应用压力的上限；第三个值是内存使用的上限.
net.ipv4.tcp_mem = 94500000 915000000 927000000
### 为自动调优定义socket使用的内存。
### 第一个值是为socket接收缓冲区分配的最少字节数；
### 第二个值是默认值（该值会被rmem_default覆盖），缓冲区在系统负载不重的情况下可以增长到这个值；
### 第三个值是接收缓冲区空间的最大字节数（该值会被rmem_max覆盖）
net.ipv4.tcp_rmem = 32768 699040 50331648
### 为自动调优定义socket使用的内存。
### 第一个值是为socket发送缓冲区分配的最少字节数；
### 第二个值是默认值（该值会被wmem_default覆盖），缓冲区在系统负载不重的情况下可以增长到这个值；
### 第三个值是发送缓冲区空间的最大字节数（该值会被wmem_max覆盖）
net.ipv4.tcp_wmem = 32768 131072 33554432
net.ipv4.tcp_slow_start_after_idle = 0
net.ipv4.tcp_synack_retries = 2
### 表示是否打开TCP同步标签（syncookie），同步标签可以防止一个套接字在有过多试图连接到达时引起过载
### 内核必须打开了CONFIG_SYN_COOKIES项进行编译，
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_syn_retries = 2
### 表示开启TCP连接中TIME-WAIT sockets的快速回收，默认为0，表示关闭
net.ipv4.tcp_tw_recycle = 1
### 允许将TIME-WAIT sockets重新用于新的TCP连接，默认为0，表示关闭
net.ipv4.tcp_tw_reuse = 1
### 启用RFC 1323定义的window scaling，要支持超过64KB的TCP窗口，必须启用该值（1表示启用），
### TCP窗口最大至1GB，TCP连接双方都启用时才生效，默认为1
net.ipv4.tcp_window_scaling = 1
### 最大限度使用物理内存
vm.swappiness = 0
生效下
#/sbin/sysctl -p
vi /etc/security/limits.conf
* soft nofile 65535
* hard nofile 65535
* soft nproc 65535
* hard nproc 65535
二、后端服务端
服务器优化，参考haproxy修改sysctl.conf和limits.conf
简单写了个springboot web端，创建springboot工程，加入以下两个类，编译成jar包。每个服务器运行3个实例
启动脚本runhellos.sh
#!/bin/sh
counter=0
while [ $counter -le 2 ]
do
port=$((8282+$counter))
java -jar helloworld-0.0.1-SNAPSHOT.jar --server.port=$port 2>&1 >/dev/null &
((counter++))
done
echo "all servers create"
关闭：pkill java
主程序HelloController.class
：
package com.wwd; import javax.servlet.http.HttpServletRequest; import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody; @Controller
@EnableAutoConfiguration
@SpringBootApplication
public class HelloController { @RequestMapping("/hello")
@ResponseBody
String home(HttpServletRequest request) {
String sleep = request.getHeader("sleep");
if(!"".equals(sleep) && null != sleep){
System.out.println("sleeptime:"+(long)((Math.random()*Integer.parseInt(sleep))));
try {
Thread.sleep((long)((Math.random()*Integer.parseInt(sleep))));
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
} return "Hello ,spring boot!";
} public static void main(String[] args) throws Exception {
SpringApplication.run(HelloController.class, args);
//运行之后在浏览器中访问：http://localhost:8080/hello
} /* @Override
public void customize(ConfigurableEmbeddedServletContainer configurableEmbeddedServletContainer) { }*/ }
tomcat参数调整（因为要保持连接，设置的超时连接时间较长，不然压不上去。）
/*
* Project: helloworld
*
* File Created at 2018年10月11日
*
* Copyright 2016 CMCC Corporation Limited.
* All rights reserved.
*
* This software is the confidential and proprietary information of
* ZYHY Company. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license.
*/
package com.wwd; import org.apache.catalina.connector.Connector;
import org.apache.coyote.http11.Http11NioProtocol;
import org.springframework.boot.context.embedded.EmbeddedServletContainer;
import org.springframework.boot.context.embedded.ServletContextInitializer;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.stereotype.Component; @Component()
public class MyEmbeddedServletContainerFactory extends TomcatEmbeddedServletContainerFactory {
public EmbeddedServletContainer getEmbeddedServletContainer(ServletContextInitializer... initializers) {
// 设置端口
// this.setPort(8081);
return super.getEmbeddedServletContainer(initializers);
} protected void customizeConnector(Connector connector) {
super.customizeConnector(connector);
Http11NioProtocol protocol = (Http11NioProtocol) connector.getProtocolHandler();
// 设置最大连接数
protocol.setMaxConnections(8000);
// 设置最大线程数
protocol.setMaxThreads(400);
protocol.setConnectionTimeout(3000000);
}
} /**
* Revision history
* -------------------------------------------------------------------------
*
* Date Author Note
* -------------------------------------------------------------------------
* 2018年10月11日 WWD create
*/
三、压测工具
开始用jmeter和ab去压测，只能测试tps信息，连接数压不上去。
ab -c 300 -n 100000 http://172.28.20.102:81/hello
引入贝吉塔Vegeta
wget https://github.com/tsenart/vegeta/releases/download/v8.0.0/vegeta-8.0.0-linux-amd64.tar.gz
tar zxvf vegeta-8.0.0-linux-amd64.tar.gz
ln -s /opt/soft/vegeta /usr/local/sbin/vegeta
2核4G，压测命令和参数如下，
echo "GET http://172.28.20.102:81/hello" | vegeta -cpus=2 attack -duration=10m -header="sleep:60000" -rate=2000 -workers=200 -timeout=1800s | tee reports.bin | vegeta report
-duration 10m为持续时间
-rate 2000为每秒2000个请求
-workers 200个线程
sleep为设置后端随机响应时间，以保持连接。
四、测试对比结果
调整sleep时间和增加压测客户端数量，查看estab数量
查看命令： ss -s&&free -g
能到24W的连接数
但内存和CPU使用率不高，有待 进一步测试。