done
		echo "FAILED"
		purge "$WORK_DIR"
		exit 1
	fi

	sleep 1
	if pgrep minio; then
		# forcibly killing, to proceed further properly.
		if ! pkill -9 minio; then
			echo "no minio process running anymore, proceed."
		fi
	fi
}

function check_heal() {
	if ! grep -q 'Status:' ${WORK_DIR}/dist-minio-*.log; then
		return 1
	fi

	for ((i = 0; i < 20; i++)); do

		done
		echo "FAILED"
		purge "$WORK_DIR"
		exit 1
	fi

	sleep 1
	if pgrep minio; then
		# forcibly killing, to proceed further properly.
		if ! pkill -9 minio; then
			echo "no minio process running anymore, proceed."
		fi
	fi
}

function check_online() {
	if ! grep -q 'Status:' ${WORK_DIR}/dist-minio-*.log; then
		echo "1"
	fi
}

function purge() {
	rm -rf "$1"
}

function __init__() {