如何确定某个counter对应的rrd文件

info.py

#!/usr/bin/env python

import requests
import json
import sys

d = [
        {
            "endpoint": sys.argv[1],
            "counter": sys.argv[2],
        },
]
url = "http://127.0.0.1:9966/graph/info"
r = requests.post(url, data=json.dumps(d))
print r.text

执行：
python info.py master feng-count

[{"endpoint":"master","counter":"feng-count","consolFun":"GAUGE","step":60,"filename":"/data/6070/c0/c0c426be18bf40971d0f2b6cc4331818_GAUGE_60.rrd","addr":"172.16.230.169:6070"}]