【22.03SP2】【redis】使用redis-benchmark进行10000连接测时通过ctrl+c退出，服务端还会残留约2000+连接，约等5分钟左右才会断开

【环境信息】
双端虚拟机环境
openeulerversion=openEuler-22.03-LTS-SP2
compiletime=2023-06-29-19-26-48
gccversion=10.3.1-37.oe2203sp2
kernelversion=5.10.0-153.12.0.92.oe2203sp2
openjdkversion=1.8.0.372.b07-1.oe2203sp2
[root@openEuler mysql]# rpm -q gazelle
gazelle-1.0.2-20.aarch64
[root@openEuler ~]# rpm -q dpdk
dpdk-21.11-50.oe2203sp2.aarch64

【问题复现步骤】，请描述具体的操作步骤
1.启动redis-server   LD_PRELOAD=/usr/lib64/liblstack.so GAZELLE_BIND_PROCNAME=redis-server  /root/redis-server redis.conf --protected-mode no --save ""

gazelle配置如下
```
dpdk_args=["--socket-mem", "2048,0,0,0", "--huge-dir", "/mnt/hugepages-lstack", "--proc-type", "primary", "--legacy-mem", "--map-perfect"]

stack_thread_mode="run-to-wakeup"

use_ltran=0
kni_switch=0

low_power_mode=0
 
#needed mbuf count = tcp_conn_count * mbuf_count_per_conn
tcp_conn_count=1500
mbuf_count_per_conn=270 #138

# send ring size, default is 32, max is 2048
send_ring_size = 32

# 0: when send ring full, send return
# 1: when send ring full, alloc mbuf from mempool to send data
expand_send_ring = 0
 
#protocol stack thread per loop params
#read data form protocol stack into recv_ring
read_connect_number = 4
#process rpc msg number
rpc_number = 4
#read nic pkts number
nic_read_number = 128

nic_rxqueue_size = 4096
nic_txqueue_size = 2048

#each cpu core start a protocol stack thread.
num_cpus="2"

#app worker thread bind to numa in epoll/poll.
app_bind_numa=1
#app main thread affinity set by dpdk.
main_thread_affinity=0

host_addr="124.88.98.247"
mask_addr="255.255.0.0"
gateway_addr="124.88.0.1"
devices="52:54:00:4a:b7:71"

#0: use rss rule
#1: use tcp tuple rule to specify packet to nic queue
tuple_filter=0

#tuple_filter=1, below cfg valid
num_process=1
process_numa="0,1"
process_idx=0

#tuple_filer=0, below cfg valid
listen_shadow=0

#vlan mode; only support 0~4094, 0 is disabled
nic_vlan_mode=0

```

2.客户端使用redis-benchemark测试测试的命令如下
```
redis-benchmark -h 124.88.98.247 -p 6379 -c 10000 -n 100000000 -d 1024 -t set -r 100000
```
3.连接完全建立之后，使用ctrl+c退出benchmark，查看服务端的连接状态

【实际结果】，请描述出问题的结果和影响
会残留约2000左右的连接，约等5min之后残留连接才全部断开
![输入图片说明](https://foruda.gitee.com/images/1702901919374925100/edec0ea9_11534493.png "屏幕截图")
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