The default graceful shutdown config value is greater than timeout in script's

In conf/write_proxy.conf :
server_graceful_shutdown_period_ms=35000

In bin/dlog-daemon.sh :
DLOG_STOP_TIMEOUT=${DLOG_STOP_TIMEOUT:-30}

so by default, every stop server request will be finished with an ungraceful shutdown behavior.

should we change the default server_graceful_shutdown_period_ms to a smaller one , i.e. 20000 ? any suggestions are welcomed.