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comparison web/log.py @ 63:43ec670f1b75

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UI tweaks
author Matt Johnston <matt@ucc.asn.au>
date Tue, 26 Jun 2012 21:21:40 +0800
parents 62112fc2af21
children 46c43e13a759
comparison
equal deleted inserted replaced
61:62112fc2af21 63:43ec670f1b75
24 24
25 def create_rrd(sensor_id): 25 def create_rrd(sensor_id):
26 # start date of 10 seconds into 1970 is used so that we can 26 # start date of 10 seconds into 1970 is used so that we can
27 # update with prior values straight away. 27 # update with prior values straight away.
28 if 'voltage' in sensor_id: 28 if 'voltage' in sensor_id:
29 args = [ 'DS:temp:GAUGE:7200:-1:10', 29 args = [
30 'RRA:AVERAGE:0.9999:1:1051200'] 30 '--step', '3600',
31 'DS:temp:GAUGE:7200:1:10',
32 'RRA:AVERAGE:0.5:1:87600']
31 else: 33 else:
32 args = [ 'DS:temp:GAUGE:600:-10:100', 34 args = [
35 '--step', '300',
36 'DS:temp:GAUGE:600:-10:100',
33 'RRA:AVERAGE:0.5:1:1051200'] 37 'RRA:AVERAGE:0.5:1:1051200']
34 38
35 rrdtool.create(sensor_rrd_path(sensor_id), 39 rrdtool.create(sensor_rrd_path(sensor_id),
36 '--start', '10', 40 '--start', 'now-60d',
37 '--step', '300',
38 *args) 41 *args)
39 42
40 # stolen from viewmtn, stolen from monotone-viz 43 # stolen from viewmtn, stolen from monotone-viz
41 def colour_from_string(str): 44 def colour_from_string(str):
42 def f(off): 45 def f(off):
57 continue 60 continue
58 if 'voltage' in sensor: 61 if 'voltage' in sensor:
59 have_volts = True 62 have_volts = True
60 vname = 'scalevolts' 63 vname = 'scalevolts'
61 graph_args = ['DEF:rawvolts=%(rrdfile)s:temp:AVERAGE:step=3600' % locals(), 64 graph_args = ['DEF:rawvolts=%(rrdfile)s:temp:AVERAGE:step=3600' % locals(),
62 'CDEF:scalevolts=rawvolts,0.2,/'] + graph_args 65 'CDEF:scalevolts=rawvolts,2,-,0.1,/'] + graph_args
63 else: 66 else:
64 vname = 'temp%d' % n 67 vname = 'temp%d' % n
65 graph_args.append('DEF:%(vname)s=%(rrdfile)s:temp:AVERAGE' % locals()) 68 graph_args.append('DEF:%(vname)s=%(rrdfile)s:temp:AVERAGE' % locals())
66 width = config.LINE_WIDTH 69 width = config.LINE_WIDTH
67 legend = config.SENSOR_NAMES.get(sensor, sensor) 70 legend = config.SENSOR_NAMES.get(sensor, sensor)
82 '--color', 'MGRID#aaaaaa', 85 '--color', 'MGRID#aaaaaa',
83 '--color', 'BACK#ffffff', 86 '--color', 'BACK#ffffff',
84 'VRULE:%d#ee0000' % time.time(), 87 'VRULE:%d#ee0000' % time.time(),
85 '--imgformat', 'PNG'] \ 88 '--imgformat', 'PNG'] \
86 + graph_args 89 + graph_args
87 if config.GRAPH_FONT: 90 args += ['--font', 'DEFAULT:11:%s' % config.GRAPH_FONT]
88 args += ['--font', 'DEFAULT:11:%s' % config.GRAPH_FONT] 91 args += ['--font', 'WATERMARK:6:%s' % config.GRAPH_FONT]
89 if have_volts: 92 if have_volts:
90 args += ['--right-axis', '0.2:0', # matches the scalevolts CDEF above 93 args += ['--right-axis', '0.1:2', # matches the scalevolts CDEF above
91 '--right-axis-format', '%.2lf', 94 '--right-axis-format', '%.2lf',
92 '--right-axis-label', 'Voltage'] 95 '--right-axis-label', 'Voltage']
93 96
94 rrdtool.graph(*args) 97 rrdtool.graph(*args)
95 return tempf.read() 98 return tempf.read()
108 rrdfile = sensor_rrd_path(sensor_id) 111 rrdfile = sensor_rrd_path(sensor_id)
109 # XXX what to do here when it fails... 112 # XXX what to do here when it fails...
110 for v in values: 113 for v in values:
111 try: 114 try:
112 rrdtool.update(rrdfile, v) 115 rrdtool.update(rrdfile, v)
113 except Exception, e: 116 except rrdtool.error, e:
114 print>>sys.stderr, "Bad rrdtool update '%s'" % v 117 print>>sys.stderr, "Bad rrdtool update '%s'" % v
115 traceback.print_exc(file=sys.stderr) 118 traceback.print_exc(file=sys.stderr)
116 119
117 # be paranoid 120 # be paranoid
118 f = file(rrdfile) 121 f = file(rrdfile)