[hobbit] Graphs missing titles and data points
moby at mobsternet.com
Thu Jun 5 21:05:05 CEST 2008
Ralph Mitchell wrote:
> On Thu, Jun 5, 2008 at 12:23 PM, Moby <moby at mobsternet.com
> <mailto:moby at mobsternet.com>> wrote:
> I am running three different Hobbit servers at three different
> sites and all work great except one.
> On the one not running great, I see everything fine except that
> all graphs are missing titles and lables along grid lines. Other
> than this missing text on the graphs, the graphs show the data fine.
> For the life of me I cannot figure out the difference between this
> misbehaving installation of Hobbit and the other two that are
> working great. Could anyone offer any hints as to where to look?
> If it's only text missing, you might want to check that the server has
> the same fonts installed as on the other two servers.
> You could also try manually generating the graphs and see if rrdtool
> complains about anything. For example, I have Hobbit on a Gentoo
> server called lorien, so I can generate the cpu load graph manually
> like this:
> rrdtool graph /var/www/localhost/htdocs/la.png \
> "DEF:avg=/home/hobbit/data/rrd/lorien/la.rrd:la:AVERAGE" \
> "CDEF:la=avg,100,/" \
> "AREA:la#00CC00:CPU Load Average"
> rrdtool responds with "481x168" which is the pixel size of the
> image generated. I can then load that image in a browser at
> http://localhost/la.png. The DEF, CDEF & AREA lines come from the
> server/etc/hobbitgraph.cfg file.
> Ralph Mitchell
Many thanks Ralph, running rrdtool like you mention showed it barfing
about a missing dejavu font. After installing the dejavu fonts package,
it works perfectly. Thanks again,
They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. -- Benjamin Franklin
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