@Override
        public void run() {
            if (shutdownHooked.compareAndSet(false, true)) {
                TMaster.this.stop("TMaster shutdown hooked.");
            }
        }
check bdb meta-data path, create it if not exist

@throws Exception
inlong-tubemq/tubemq-server/src/main/java/org/apache/inlong/tubemq/server/master/TMaster.java