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Re: No Graph for Source
Posted: Thu Sep 10, 2015 1:07 pm
by ryanb
So, I figured out what the issue is. In initialize_source.py where rrdtool is called, there is no check for exceptions:
Code: Select all
46 def create_bandwidth_db(directory, name='bandwidth.rrd'):
47 '''Creates the bandwidth DB for the source'''
48 rrdtool.create( os.path.join(directory, name),
49 '--no-overwrite',
50 '--step', '300',
51 'DS:flows:GAUGE:600:0:U',
52 'DS:bytes:GAUGE:600:0:U',
53 'DS:packets:GAUGE:600:0:U',
54 'DS:bps:GAUGE:600:0:U',
55 'DS:pps:GAUGE:600:0:U',
56 'DS:bpp:GAUGE:600:0:U',
57 'RRA:AVERAGE:0.5:1:17531',
58 'RRA:AVERAGE:0.5:12:4380',
59 'RRA:AVERAGE:0.5:288:365',
60 'RRA:HWPREDICT:1440:0.1:0.0035:288' )
It seems that the --no-overwrite option is not valid:
Code: Select all
ERROR:root:unknown option '--no-overwrite'
Traceback (most recent call last):
File "./test_init.py", line 61, in create_bandwidth_db
'RRA:HWPREDICT:1440:0.1:0.0035:288' )
error: unknown option '--no-overwrite'
RRD Tool failed: unknown option '--no-overwrite'
When I remote that option from the command, it works.
Re: No Graph for Source
Posted: Thu Sep 10, 2015 1:14 pm
by ryanb
So, interestingly, I have rrdtool installed on my system and it does seem to support that option:
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$ rrdcreate --help
RRDtool 1.4.9 Copyright by Tobi Oetiker, 1997-2010
Usage: rrdcreate <filename>
[--start|-b start time]
[--step|-s step]
[--no-overwrite]
[DS:ds-name:DST:dst arguments]
[RRA:CF:cf arguments]
ERROR: unknown option '--help'
However, that isn't what the script is using. It seems to be using a Python module, and according to pydoc rrdtool, that option is not supported:
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<stuff deleted>
FUNCTIONS
create(...)
create(args..): Set up a new Round Robin Database
create filename [--start|-b start time] [--step|-s step] [DS:ds-name:DST:heartbeat:min:max] [RRA:CF:xff:steps:rows]
<more irrelevant stuff deleted>
VERSION
1.4.9
Please advise.
Re: No Graph for Source
Posted: Thu Sep 10, 2015 3:35 pm
by ssax
What is the output of this command?
Re: No Graph for Source
Posted: Thu Sep 10, 2015 3:36 pm
by ssax
Also, what specific distro/version are you running?
Re: No Graph for Source
Posted: Thu Sep 10, 2015 4:55 pm
by ryanb
Running CentOS- fresh install from within the last few weeks. The only thing I installed has been NagiosXI, NA and Log Server. And also TCPDump for troubleshooting.
Code: Select all
# find /usr/local -name py_rrd*
/usr/local/lib64/python2.6/site-packages/py_rrdtool-0.2.2-py2.6.egg-info
# cat /etc/redhat-release
CentOS release 6.7 (Final)
Is rrdtool.create called on these files again at any time once they are created? If I have to manually create them using rrdtool from the commandline (or editing that script),that's fine. As long as it won't cause me a problem down the line.
Re: No Graph for Source
Posted: Thu Sep 10, 2015 4:58 pm
by jdalrymple
ryanb wrote:The only thing I installed has been NagiosXI, NA and Log Server.
On 1 host?
If so I think we found your problem... Our pieces of software integrate, but don't coexist well
Re: No Graph for Source
Posted: Fri Sep 11, 2015 8:55 am
by ryanb
Oh, I see. Yeah, they are all on the same server. It's not an option for me to move these to separate servers, but if I have to make a few tweaks here and there it is not a big deal. Do you have any documentation that will tell me what I need to look for and do to solve any other glitches like this?
Also, if I just create the bandwidth.rrd files manually using rrdtool from the commandline, should everything work properly? Or will this issue crop up down the road?
Thanks,
Ryan
Re: No Graph for Source
Posted: Fri Sep 11, 2015 10:20 am
by ssax
It should work just fine as long as it's created with the same options and you set the permissions properly.
Re: No Graph for Source
Posted: Fri Sep 11, 2015 12:32 pm
by ryanb
OK, that works. I created a couple rrd files- in one case I used the script and just commented out the offending option, and in the other I copied and pasted the options into the commandline version of rrdtool. Both seem to be working fine.
Thanks for your help. Feel free to close this out.