# mqtt

**Repository Path**: kannon01/mqtt

## Basic Information

- **Project Name**: mqtt
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-06-12
- **Last Updated**: 2024-08-20

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README


修改`/etc/sysctl.conf` 文件
```azure

echo "
    # 星号表示所有用户，noproc代表最大进程数，nofile代表最大打开文件数
* soft nofile 12000000
* hard nofile 12000000
* soft nproc 12000000
* hard nproc 12000000
" >> /etc/security/limits.conf && \
echo "
net.ipv4.tcp_wmem = 4096 87380 4161536
net.ipv4.tcp_rmem = 4096 87380 4161536
net.ipv4.tcp_mem = 786432 2097152 3145728
net.core.somaxconn=65536 
fs.file-max = 12000000
fs.nr_open=12000000  
kernel.pid_max = 655360
" >> /etc/sysctl.conf
    
echo 12000000 > /proc/sys/fs/nr_open
sysctl -p
ulimit -n
```
`
./go_build_cp7_bench_sub_go_linux -workers=1000000 -cid=tqy -topic=null -qos=0 -url=tcp://192.168.1.236:1883 -keepalive=60000s -clear=true

/sbin/sysctl -p` 生效
docker run -d --name emqx  --network=host  emqx/emqx:5.5.0
## 客户端设置

```azure
-- ifconfig ens192:0 192.168.1.100 netmask 255.255.255.0 up
ifconfig ens192:1 192.168.1.101 netmask 255.255.255.0 up
ifconfig ens192:2 192.168.1.102 netmask 255.255.255.0 up
ifconfig ens192:3 192.168.1.103 netmask 255.255.255.0 up
ifconfig ens192:4 192.168.1.104 netmask 255.255.255.0 up
ifconfig ens192:5 192.168.1.105 netmask 255.255.255.0 up
ifconfig ens192:6 192.168.1.106 netmask 255.255.255.0 up
ifconfig ens192:7 192.168.1.107 netmask 255.255.255.0 up
ifconfig ens192:8 192.168.1.108 netmask 255.255.255.0 up
ifconfig ens192:9 192.168.1.109 netmask 255.255.255.0 up
ifconfig ens192:10 192.168.1.110 netmask 255.255.255.0 up
ifconfig ens192:11 192.168.1.111 netmask 255.255.255.0 up
ifconfig ens192:12 192.168.1.112 netmask 255.255.255.0 up
ifconfig ens192:13 192.168.1.113 netmask 255.255.255.0 up
ifconfig ens192:14 192.168.1.114 netmask 255.255.255.0 up
ifconfig ens192:15 192.168.1.115 netmask 255.255.255.0 up
ifconfig ens192:16 192.168.1.116 netmask 255.255.255.0 up
ifconfig ens192:17 192.168.1.117 netmask 255.255.255.0 up
ifconfig ens192:18 192.168.1.118 netmask 255.255.255.0 up
ifconfig ens192:19 192.168.1.119 netmask 255.255.255.0 up

    
    ifconfig ens192:20 192.168.1.120 netmask 255.255.255.0 up
    ifconfig ens192:21 192.168.1.121 netmask 255.255.255.0 up
    ifconfig ens192:22 192.168.1.122 netmask 255.255.255.0 up
    ifconfig ens192:23 192.168.1.123 netmask 255.255.255.0 up
    ifconfig ens192:24 192.168.1.124 netmask 255.255.255.0 up
    ifconfig ens192:25 192.168.1.125 netmask 255.255.255.0 up
    ifconfig ens192:26 192.168.1.126 netmask 255.255.255.0 up
    ifconfig ens192:27 192.168.1.127 netmask 255.255.255.0 up
    ifconfig ens192:28 192.168.1.128 netmask 255.255.255.0 up
    ifconfig ens192:29 192.168.1.129 netmask 255.255.255.0 up


ifconfig ens192:0 del  192.168.1.100 
ifconfig ens192:21 del  192.168.1.122 
ifconfig ens192:2 del  192.168.1.102 
ifconfig ens192:3 del  192.168.1.103 
ifconfig ens192:4 del  192.168.1.104 
ifconfig ens192:5 del  192.168.1.105 
ifconfig ens192:6 del  192.168.1.106 
ifconfig ens192:7 del  192.168.1.107 
ifconfig ens192:8 del  192.168.1.108 
ifconfig ens192:9 del  192.168.1.109 
    
n=$1

for (( i=0; i<$n; i++ ))
do
ifconfig ens192:$((20+i)) del 192.168.1.$((120+i))
done

./emqtt_bench -h 192.168.1.236 -c 60000 --ifaddr 192.168.1.100 


./emqtt_bench pub -t t  -s 16 -q 0  -I 10000 -h 192.168.1.236 -c 60000 --ifaddr 192.168.1.100 


```

修改`/etc/sysctl.conf` 文件
```azure

echo "
    # 星号表示所有用户，noproc代表最大进程数，nofile代表最大打开文件数
* soft nofile 12000000
* hard nofile 12000000
* soft nproc 12000000
* hard nproc 12000000
" >> /etc/security/limits.conf && \
echo "
fs.file-max = 12000000
fs.nr_open = 12000000
net.ipv4.ip_local_port_range = 1024 65535
" >> /etc/sysctl.conf
    
echo 12000000 > /proc/sys/fs/nr_open
sysctl -p
    ulimit -n 12000000

```
netstat -nat|grep -i "1883"|wc -l

pin