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hobbitgraph.cgi: Attempting to reuse 'mysqlht'

list Arie Skliarouk
Sun, 28 Nov 2010 16:30:39 +0200
Message-Id: <user-ef3804e15491@xymon.invalid>

On Thu, Nov 25, 2010 at 17:59, Henrik Størner <user-ce4a2c883f75@xymon.invalid> wrote:

On Wed, 24 Nov 2010 16:12:07 +0200, Arie Skliarouk wrote:

I created a custom mysql parameters check that shows graphs on one
server, but not on the other. hobbitgraph.sh (hobbitgraph.cgi?) kept
sending following error instead of the actual image:
<html><head><title>Invalid request</title></head> <body>Attempting to
reuse 'mysqlht'</body></html>
This is an error from the rrdtool library. So I would suspect something
dodgy with the graph-definition in hobbit-graphs.cfg, or the RRD file
data is not as you would expect.

Could you show us the graph definition you use ?

See attached. Also attached all files you might require to recreate the
mysql sensor.

Note that the graph works for one machine, but not for the other.


And the layout of the
RRD-file - a command like

       rrdtool info mysql.rrd |grep "type ="

Both files yield identical output:
ds[mysqlht].type = "GAUGE"
ds[mysqlhq].type = "GAUGE"
ds[mysqlhs].type = "GAUGE"

--
Arie

should give us the necessary info about the datasets and their type.

If I request the same image for different server, same service - I get
the image. If I copy the mysql.rrd file from the
/var/lib/hobbit/rrd/atl-db01/mysql.rrd into the
/var/lib/hobbit/rrd/pa04, then the image for pa04 shows graph for the
atl-db01.

Could be that dash in name of that particular server was affecting the
hobbitgraph.cgi somehow? I can attach the hobbitgraph.d/mysql.cfg and
hobbitserver.d/mysql.cfg if that would help.
It shouldn't, and I know I have hostnames with dash'es in them. Haven't
noticed any problems with graphs there, but I'll have a look.


Regards,
Henrik
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