[alibaba/tengine]tengine-2.3.2 做 TCP 负载均衡，执行 reload 后，worker process 不释放

tengine-2.3.2 做 TCP 负载均衡，执行 reload 后，worker process 不释放（过了一个晚上都没释放）。 配置信息： ----------nginx.conf--------------- user nobody; worker_processes 4; worker_rlimit_nofile 65535; error_log /opt/logs/nginx/error.log info; pid /opt/run/nginx/nginx.pid; events { worker_connections 65535; } stream {

log_format  main  '[$time_local] $remote_addr '
                  '$protocol $status '
                  '$session_time $upstream_addr '
                  '$upstream_connect_time';

access_log  /opt/logs/nginx/access.log main gzip flush=5m;

upstream elasticsearch {
    server 192.168.1.82:9300 max_fails=1 fail_timeout=120s weight=1;
    server 192.168.1.93:9300 max_fails=1 fail_timeout=120s weight=1;
    server 192.168.1.94:9300 max_fails=1 fail_timeout=120s weight=1;
    server 192.168.1.173:9300 max_fails=1 fail_timeout=120s weight=1;
    server 192.168.1.174:9300 max_fails=1 fail_timeout=120s weight=1;
}

server {
    listen 9300;
    error_log /opt/logs/nginx/es_error.log debug;
    access_log /opt/logs/nginx/es.log main gzip flush=10m;

    proxy_timeout 120s;
    proxy_connect_timeout 120s;
    proxy_buffer_size 128k;
    proxy_next_upstream on;
    proxy_next_upstream_timeout 10s;
    proxy_pass elasticsearch;
}

}