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

[Emily Chouinard]

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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