that's what i did.. rrdtool dump (or fetch) ... gives me only nan's
in the dump i see in <last ds> (?) an extended value (eg. 4.000000e+10)
but for AVERAGE, MIN, MAX i get only nan. which is weird.
the only diffs i see between my implementation and roys' is that he uses
perl extensions and i use shell script outputted by a c program that
gathers data from tc and compares the classes with a config file to get
the name of the clients. my program is an extension to htb-utils.
On Sat, 2004-07-31 at 02:58, Tadas wrote:
> I dont see anything wrong with your script,
> but you did not show the part which displays graphs.
>
> For testing you can try to dump your database as xml it helps to test if
> you create and update it correctly.
> if all data is good, then you are incorrectly displaying it.
>
>
>
> ----- Original Message -----
> From: "Adrian Vasile" <adi@xxxxxxxxxx>
> To: "Roy" <roy@xxxxxx>
> Sent: Saturday, July 31, 2004 2:20 AM
> Subject: Re: tc &amp; rrd question
>
>
> > thanks for the info. i'll try implementing it as soon as
> > possible.
> >
> > i've been using this line: for creating the db's:
> >
> > $RRDTOOL create /var/rrd/eth0/upload.rrd \
> > DS:Speed:GAUGE:600:0:U \
> > DS:Bytes:COUNTER:600:0:U \
> > RRA:AVERAGE:0.5:1:288
> > RRA:MIN:0.5:1:24 \
> > RRA:MAX:0.5:1:24
> > i see some diffs i don't set the step size (man page says default is 300
> > aka 5min) and heartbeat double. the avg is set to 24h with 12 points per
> > hour.i realize it's not too exact but for testing purposes works :)
>
> Do you log only last 24 points of min and max?
>
> if you want one point per hour you should use
> 60min/5min =12
> RRA:MIN:0.5:12:24
>
>
> >
> > and i use crontab to periodically run the update script:
> >
> > $RRDTOOL update /var/rrd/eth0/upload.rrd N:57:1202599
> > i use N: for now time (as per the man page)
> >
> > the problem appears when i fetch the data i get only 'nan'. i'm thinking
> > that i may be putting the data the wrong way or something but i've been
> > hitting a stone wall searching on this problem (docs, mailing lists).
> >
> > On Fri, 2004-07-30 at 16:53, Roy wrote:
> > > Basicaly it is easy to use rrd tool, the hardest part for me
> > was to setup
> > > rrd database correctly
> > > here is example
> > >
> > > RRDs::create('"'$rrd'"','"'-s'"',$period,
> > > '"'DS:TR:GAUGE:300:0:U'"',
> > > '"'RRA:AVERAGE:0.5:1:1440'"', # 0.5-
> > uaualy leave as is : 1-
> > > for first entry use 1 :1440 number of points
> > > '"'RRA:AVERAGE:0.5:15:3072'"'); #: 0.5: 15
> > needs 15 updates to
> > > create one average database entry :3072
> > >
> > >
> > > Complete example for perl, probably will be good for you too.
> > have
> > > resolution of 1 min for 1 day and 15 min resolution for 1
> > month. uopdates
> > > should be done each minute
> > > $time=time;
> > > $rrd='"'./data/$ip.rrd'"'; #$rrd is filename
> > > if (!(-e '"'$rrd'"')) { print '"'creating
> > $rrd\n'"';
> > >
> > RRDs::create('"'$rrd'"','"'-s'"',$period,
> > > '"'DS:TR:GAUGE:300:0:U'"',
> > > '"'RRA:AVERAGE:0.5:1:1440'"',
> > > '"'RRA:AVERAGE:0.5:15:3072'"');
> > > if (my $error=RRDs::error()) {print '"'Cannot create
> > $rrd: $error\n'"';}
> > > }
> > >
> > > RRDs::update('"'$rrd'"','"'$time:$tr'"'); #
> > $tr is the data you want to add to
> > > database
> > >
> > > if (my $error=RRDs::error()) {print '"'Cannot update $rrd:
> > $error\n'"';}
> > >
> > > }
> > > ##################
> > > example for view script. shows load graph and total traffic per
> > $period
> > > $period is in seconds
> > >
> > > $period=3600*24; #(for one day)
> > >
> > > $start=time-$period; #starts from current time.
> > > $rrd='"'./data/$ip.rrd'"';
> > > RRDs::graph
> > ('"'$cache/$name.png'"','"'--start=$start'"','"'--width=720'"',
> > > '"'DEF:d=$rrd:TR:AVERAGE'"',
> > > '"'CDEF:down=d,UN,0,d,IF,$period,*'"',
> > > '"'LINE1:d#6600cc'"',
> > > '"'GPRINT:down:AVERAGE:%1.1lf%sB Download'"',
> > > );
> > >
> > > if (my $error=RRDs::error()) {print '"'Cannot graph
> > $rrd: $error\n'"';}
> > >
> > > print '"'<img src=\'"'$cache/$name.png\'"'>
> > \n'"';
> > > print '"'$name $ip<br>\n'"';
> > > }
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO:
> http://lartc.org/
> > > >
> > >
> > > _______________________________________________
> > > LARTC mailing list / LARTC@xxxxxxxxxxxxxxx
> > > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/
> > >
> >
> >
>
>
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