env PATH_PREFIX can set the buffer path, different paths are equivalent to multiple clients
server path
build.sh compiling script
bootstrap.sh first start server script
bootstrap_hot_restart.sh hot restart server script
env IS_HOT_RESTART value is true hot restart
env HOT_RESTART_EPOCH epoch id of the server, each hot restart needs to be different
The hot restart test requires bootstrap.sh to start the server first,bootstrap_hot_restart.sh hot restart the new server by change the value of HOT_RESTART_EPOCH