Amesh connect to xds control plane failed will stuck nginx work process

[chunlinwu]

Start amesh apisix when xds control plane is unavailable will stuck nginx work process, the result is that no work process, all are master process, and there are no log, as follows:

[mwopr@1a01vlc0386zzzz apisix]$ ps -ef UID PID PPID C STIME TTY TIME CMD mwopr 1 0 0 17:39 ? 00:00:00 nginx: master process /usr/local/openresty/nginx/sbin/nginx -p /usr/local/apisix -c conf/nginx.conf mwopr 39 1 1 17:39 ? 00:00:00 nginx: master process /usr/local/openresty/nginx/sbin/nginx -p /usr/local/apisix -c conf/nginx.conf mwopr 40 1 1 17:39 ? 00:00:00 nginx: master process /usr/local/openresty/nginx/sbin/nginx -p /usr/local/apisix -c conf/nginx.conf mwopr 41 1 1 17:39 ? 00:00:00 nginx: master process /usr/local/openresty/nginx/sbin/nginx -p /usr/local/apisix -c conf/nginx.conf mwopr 42 1 1 17:39 ? 00:00:00 nginx: master process /usr/local/openresty/nginx/sbin/nginx -p /usr/local/apisix -c conf/nginx.conf mwopr 43 1 0 17:39 ? 00:00:00 nginx: cache manager process mwopr 44 1 0 17:39 ? 00:00:00 nginx: cache loader process mwopr 45 1 1 17:39 ? 00:00:00 nginx: master process /usr/local/openresty/nginx/sbin/nginx -p /usr/local/apisix -c conf/nginx.conf mwopr 75 53 0 17:39 pts/0 00:00:00 ps -ef