3 # This is a munin plugin which pulls data from the server in
4 # misc/operations_helpers/spacetime/diskwatcher.tac . It produces a graph of how much disk space
5 # is being used per unit time. The plugin should be configured with env_url=
6 # pointing at the diskwatcher.tac webport.
8 import os, sys, urllib, simplejson
10 if len(sys.argv) > 1 and sys.argv[1] == "config":
12 graph_title Tahoe Disk Usage Measurement
13 graph_vlabel bytes per second
15 graph_info This graph shows the estimated disk usage per unit time, totalled across all storage servers
16 graph_args --lower-limit 0 --rigid
17 rate_1hr.label (one hour sample)
19 rate_1day.label (one day sample)
21 rate_2wk.label (two week sample)
23 rate_4wk.label (four week sample)
24 rate_4wk.draw LINE2"""
27 url = os.environ["url"]
28 timespans = simplejson.load(urllib.urlopen(url))["rates"]
30 data = dict([(name, growth)
31 for (name, timespan, growth, timeleft) in timespans])
32 # growth is in bytes per second
34 print "rate_1hr.value", data["1hr"]
36 print "rate_1day.value", data["1day"]
38 print "rate_2wk.value", data["2wk"]
40 print "rate_4wk.value", data["4wk"]