[rrd-users] Still trying to create a graph from multiple sources in RRDtool

[Matthew M. Boedicker]

It think it doesn't like the leading space in the arguments.

It also expects each argument to a complete "part" (a complete DS, RRA, etc.),
like this:

rrdtool.create('usr.rrd',
    'DS:usr_info:COUNTER:%s:U:U' % heartbeat,
    'RRA:AVERAGE:0.5:1:%s' % int(4000 / interval_mins),
    'RRA:AVERAGE:0.5:%d:800' % int(30 / interval_mins),
    'RRA:AVERAGE:0.5:%d:800' % int(120 / interval_mins),
    'RRA:AVERAGE:0.5:%d:800' % int(1440 / interval_mins))

Each part separated by spaces in the command line becomes an argument to the
Python method.

On Mon, Jun 16, 2008 at 10:53:00AM -0400, Emily Chouinard wrote:
> Oh man do I feel silly, well that fixed that problem but now I get this 
> error
> # python mult_rrd.py
> 246304 98112 103618859
> Traceback (most recent call last):
>   File "mult_rrd.py", line 27, in ?
>     ' RRA:AVERAGE:0.5:', str(int(14400 / interval_mins)),':800')
> rrdtool.error: can't parse argument ' DS:usr_info:COUNTER:10:U:U'
> 
> Matthew M. Boedicker wrote:
> > You will have to put the rrd filenames in quotes so Python will interpret
> > them as strings and not Python syntax.
> >
> > On Mon, Jun 16, 2008 at 10:12:09AM -0400, Emily Chouinard wrote:
> >   
> >> Alright so I've tried following everyone advice, thanks by the way, and 
> >> I've got this far and now I can't get the rrdcreate to work when I run 
> >> my code
> >>
> >> import rrdtool
> >> import os
> >> import time
> >>
> >> interval = 5
> >> interval = str(interval)
> >> interval_mins = float(interval) / 60 
> >> heartbeat = str(int(interval) * 2)
> >>
> >> while True:
> >>     infile= open('/proc/stat', 'r')
> >>     #for x in range(0,1): #Reads first line only
> >>     line = infile.readline()
> >>     if line.startswith('cpu'): #Check to make sure in 1st line
> >>     info = line.split()    #Returns a list of the words in the string
> >>     usr_info = info[1]              # These 3 index the specific CPU usages
> >>     sys_info = info[3]
> >>     idle_info = info[4]
> >>     print  usr_info, sys_info, idle_info #Print out so you can see 
> >> what's happening
> >>    
> >>     rrdtool.create (usr.rrd,
> >>         ' DS:usr_info:COUNTER: %s:U:U % heartbeat', 
> >>         ' RRA:AVERAGE:0.5:1:', str(int(4000 / interval_mins)),
> >>             ' RRA:AVERAGE:0.5:', str(int(30 / interval_mins)), ':800',
> >>                ' RRA:AVERAGE:0.5:', str(int(120 / interval_mins)), ':800',
> >>             ' RRA:AVERAGE:0.5:', str(int(1440 / interval_mins)), ':800')
> >>    
> >>     rrdtool.create (sys.rrd,
> >>         ' DS:sys_info:COUNTER: %s:U:U % heartbeat',
> >>         ' RRA:AVERAGE:0.5:1:', str(int(4000 / interval_mins)),
> >>             ' RRA:AVERAGE:0.5:', str(int(30 / interval_mins)), ':800',
> >>             ' RRA:AVERAGE:0.5:', str(int(120 / interval_mins)), ':800',
> >>             ' RRA:AVERAGE:0.5:', str(int(1440 / interval_mins)), ':800')   
> >>    
> >>     rrdtool.create (idle.rrd,
> >>         ' DS:idle_info:COUNTER: %s:U:U % heartbeat', 
> >>         ' RRA:AVERAGE:0.5:1:', str(int(4000 / interval_mins)),
> >>             ' RRA:AVERAGE:0.5:', str(int(30 / interval_mins)), ':800',
> >>             ' RRA:AVERAGE:0.5:', str(int(120 / interval_mins)), ':800',
> >>             ' RRA:AVERAGE:0.5:', str(int(1440 / interval_mins)), ':800')
> >>      
> >> rrdtool.update (usr.rrd, 12322)
> >> rrdtool.update (sys.rrd,12322)
> >> rrdtool.update (idle.rrd,12322)
> >>
> >> rrdtool.graph(test.rrd.png,
> >>     ' --width','400',
> >>     ' --height', '150',
> >>     ' --start', 'now- %s' % (mins * 60),
> >>     ' --end', 'now',
> >>     ' --vertical-label', 'CPU Usuage',
> >>     ' --title', 'EXAMPLE',
> >>     ' COMMENT',time.strftime('%m/%d/%Y %H\:%M\:%S', time.localtime()),
> >>     ' DEF:ds0= usr.rrd:ds0:AVERAGE ',
> >>      ' DEF:ds1 = sys.rrd:ds1:AVERAGE:step=800',
> >>      ' DEF:ds2= idle.rrd:ds2:AVERAGE:step=800',
> >>         ' AREA:ds0#0000FF:"User CPU usuage"',
> >>         ' LINE1: ds1#00FF00:"System CPU usuage" ',
> >>         ' LINE1: ds2#FF0000:"Idle CPU usuage" ')
> >>
> >> I get this error   # python mult_rrd.py
> >> 246176 97876 103312642
> >> Traceback (most recent call last):
> >>   File "mult_rrd.py", line 21, in ?
> >>     rrdtool.create (usr.rrd,
> >> NameError: name 'usr' is not defined
> >>
> >> And this is where I am stuck, I'm not sure why it is giving me this 
> >> error, I thought the rrdtool.create defined the file usr.rrd if not let 
> >> me know what I should do to fix it, also let me know if you see other 
> >> things gone wrong in here (maybe take a peek at my rrdtool.update 
> >> commands), thanks!
> >>     Emily
> >>
> >>        
> >>
> >>
> >> Fabien Wernli wrote:
> >>     
> >>> On Fri, Jun 13, 2008 at 11:40:28AM -0400, Matthew M. Boedicker wrote:
> >>>   
> >>>       
> >>>> For CPU usage you might want to try GAUGE instead of COUNTER. For graphing
> >>>>     
> >>>>         
> >>> no you don't: Emily is pulling /proc/stat values which _are_ counters
> >>> using GAUGE would produce endlessly growing values
> >>>
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> >>>
> >>>   
> >>>       
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> >>     
> >
> >
> >   
> 
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