graphs missing text
list Mark T Mark Simon Simon
Hello Brothers and Big Sisters, I love the new name (guess why). I just converted my Hobbit Server to a Xymon Server. I copied over the histlogs and rrd files and everything is working with one small annoyance, my graphs have no text. The graphs are generated with data, grids, arrows, and lines but no labels or legends. I know this can happen if the fonts are not installed but it works fine when running Hobbit on the same server. I also manually generated a graph with rrdtool and it came out fine. This happens for rrd files I copied from Hobbit and on ones newly generated by Xymon. I built Xymon on an HP-UX 11.23 IA64 server. I am using rrdtool ver 1.2.23 that I built on this same server. The only build issue I had was I had to make a link /usr/local/pcre/lib -> ../lib/hpux32 so pcre.sh could find the lib files. Mark Simon Verizon USE-HP Support 2400 N Glenville Dr Richardson, TX 75082 (972)729-5674 v777-5674
list Henrik Størner
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In <user-647cdcf45a2e@xymon.invalid> "Simon, Mark T (Mark Simon)" <user-b88e47e11774@xymon.invalid> writes:
Hello Brothers and Big Sisters, I love the new name (guess why). I just converted my Hobbit Server to a Xymon Server. I copied over the histlogs and rrd files and everything is working with one small annoyance, my graphs have no text. The graphs are generated with data, grids, arrows, and lines but no labels or legends. I know this can happen if the fonts are not installed but it works fine when running Hobbit on the same server. I also manually generated a graph with rrdtool and it came out fine. This happens for rrd files I copied from Hobbit and on ones newly generated by Xymon.
I built Xymon on an HP-UX 11.23 IA64 server. I am using rrdtool ver 1.2.23 that I built on this same server.
RRDtool uses an external font (ttf) file when it renders the text.
It sounds as if the hobbitgraph.cgi binary picks up a version of
the rrdtool library which has a built in filename for this ttf-file
that doesn't match the actual location. Usually this happens if
the rrdtool library was built on another machine.
I don't know how to do this in HP-UX, but on Linux or Solaris I'd use
the "ldd" utility to see which rrdtool library is used:
$ ldd ~xymon/server/bin/hobbitgraph.cgi
linux-gate.so.1 => (0xb80b8000)
libpcre.so.3 => /lib/libpcre.so.3 (0xb805e000)
librrd.so.2 => /usr/lib/librrd.so.2 (0xb8015000)
(If there's no librrd listed, then it's probably linked statically.
In that case, the next step is done againt the hobbitgraph.cgi binary).
Next, do a "strings" and "grep" on /usr/lib/librrd.so.2 to see what
ttf-file it references:
$ strings /usr/lib/librrd.so.2 |grep ttf
@/usr/share/rrdtool/librrd2/DejaVuSansMono-Roman.ttf
Does that file exist ? It is readable by the webserver userid ?
$ ls -l /usr/share/rrdtool/librrd2/DejaVuSansMono-Roman.ttf
-rw-r--r-- 1 root root 60444 2008-02-17 11:26 /usr/share/rrdtool/librrd2/DejaVuSansMono-Roman.ttf
NB: This is only for RRDtool 1.2.x - the 1.3.x handling of fonts is
quite different.
Regards,
Henrik
list Mark T Mark Simon Simon
Thanks Henrik, My problem turned out to be permissions on some of the lib files. Everything is working great now. Mark Simon VIPS USE-HP Support 2400 N Glenville Dr Richardson, TX 75082 (972)729-5674 v777-5674 Re: [hobbit] graphs missing text * To: user-ae9b8668bcde@xymon.invalid * Subject: Re: [hobbit] graphs missing text * From: Henrik "Størner" <user-ce4a2c883f75@xymon.invalid> * Date: Tue, 30 Dec 2008 22:30:26 +0000 (UTC) * Newsgroups: lists.hobbit * Organization: Linux Users Inc. * References: <user-647cdcf45a2e@xymon.invalid> * User-agent: nn/6.7.3
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In <user-647cdcf45a2e@xymon.invalid> "Simon, Mark T (Mark Simon)" <user-b88e47e11774@xymon.invalid> writes:
Hello Brothers and Big Sisters, I love the new name (guess why). I just converted my Hobbit Server to a Xymon Server. I copied over the histlogs and rrd files and everything is working with one small annoyance, my graphs have no text. The graphs are generated with data, grids, arrows, and lines but no labels or legends. I know this can happen if the fonts are not installed but it works fine when running Hobbit on the same server. I also manually generated a graph with rrdtool and it came out fine. This happens for rrd files I copied from Hobbit and on ones newly generated by Xymon.
I built Xymon on an HP-UX 11.23 IA64 server. I am using rrdtool ver 1.2.23 that I built on this same server.
RRDtool uses an external font (ttf) file when it renders the text.
It sounds as if the hobbitgraph.cgi binary picks up a version of
the rrdtool library which has a built in filename for this ttf-file
that doesn't match the actual location. Usually this happens if
the rrdtool library was built on another machine.
I don't know how to do this in HP-UX, but on Linux or Solaris I'd use
the "ldd" utility to see which rrdtool library is used:
$ ldd ~xymon/server/bin/hobbitgraph.cgi
linux-gate.so.1 => (0xb80b8000)
libpcre.so.3 => /lib/libpcre.so.3 (0xb805e000)
librrd.so.2 => /usr/lib/librrd.so.2 (0xb8015000)
(If there's no librrd listed, then it's probably linked statically.
In that case, the next step is done againt the hobbitgraph.cgi binary).
Next, do a "strings" and "grep" on /usr/lib/librrd.so.2 to see what
ttf-file it references:
$ strings /usr/lib/librrd.so.2 |grep ttf
@/usr/share/rrdtool/librrd2/DejaVuSansMono-Roman.ttf
Does that file exist ? It is readable by the webserver userid ?
$ ls -l /usr/share/rrdtool/librrd2/DejaVuSansMono-Roman.ttf
-rw-r--r-- 1 root root 60444 2008-02-17 11:26 /usr/share/rrdtool/librrd2/DejaVuSansMono-Roman.ttf
NB: This is only for RRDtool 1.2.x - the 1.3.x handling of fonts is
quite different.
Regards,
Henrik