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Re: [hobbit] Custom Graph

I've now successfully created dozens of custom graphs, but even still, if I
haven't done it in a while, it always takes me a while to get it working
again to add new ones.  You may have done some of this already, but here is
a checklist of some items to test (roughly in order):

1) The script that is generating the data is outputting letter-for-letter
what you think it is
   [it looks like this is correct in your case]
2) The proper NCV entries (if appropriate; I've only made NCV graphs) are
made in hobbitserver.cfg
   [again, this looks good]
3) The two hobbitd_rrd processes have been restarted (kill -9 on them works;
hobbit restarts them automatically)
4) The RRD file is being generated [in your case, check]
   a) When in doubt, it doesn't hurt to delete the RRD files and let hobbit
recreate them if you see
       some weirdness in them
5) The appropriate entry is made in hobbitgraph.cfg
6) If you're getting "hobbit graph ncv:<blah>", it usually means that there
is some typo or bad
   reference in the hobbitgraph.cfg definition for the graph

The most common problem I've run into is human error on my part in making a
typo in the hobbitgraph.cfg file.  It looks like in your case, it is
probably because the data doesn't appear to be getting into the RRD file
properly.  The fact that you're getting the "hobbit graph ncv:<blah>" on the
graph page means you're mostly there.  Keep in mind that hobbitgraph.cfg is
case-sensitive.  The nice thing is, changes made to this file are immediate,
so as soon as you make a change, you can see the effect in the graph.

Also, you don't need unique "<name>"s in the "DEF:<name>" line, so in your
example above, you could use "DEF:lat . . ." for all of the 3 graphs
defined.  These variables are limited in scope to the graph definition they
are used with.


Hi, 

I've tried a few times to get the custom graphs to work, but have had no
joy getting them to work.  Invariably, I get the data into the rrd, but
the graph is never drawn.

Here is a sample of the data I send to hobbit:


--->
Fri Mar 23 10:39:23 EDT 2007 - TIB RV Latency monitoring

latency : 3.291

Status unchanged in 1 days,12 hours, 9 minutes
Status message received from 146.121.201.35
<---

My TEST2RRD line has "...,GCM=ncv,RTE=ncv,SWAP=ncv"

My GRAPHS line has "...,GCM,RTE,SWAP"

I have 3 lines for NCV:

NCV_GCM="latency:GAUGE"
NCV_RTE="latency:GAUGE"
NCV_SWAP="latency:GAUGE"


I generate RRD's for each of my tests, and it looks like there is data,
but not exactly as in the example in on Henrik's web site:

<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
        <step> 300 </step> <!-- Seconds -->
        <lastupdate> 1174661992 </lastupdate> <!-- 2007-03-23 10:59:52
EDT -->

        <ds>
                <name> latency </name>
                <type> GAUGE </type>
                <minimal_heartbeat> 600 </minimal_heartbeat>
                <min> 0.0000000000e+00 </min>
                <max> NaN </max>

                <!-- PDP Status -->
                <last_ds> UNKN </last_ds>
                <value> 1.0409800000e+03 </value>
                <unknown_sec> 0 </unknown_sec>
        </ds>

<!-- Round Robin Archives -->   <rra>
                <cf> AVERAGE </cf>
                <pdp_per_row> 1 </pdp_per_row> <!-- 300 seconds -->

                <params>
                <xff> 5.0000000000e-01 </xff>
                </params>
                <cdp_prep>
                        <ds>
                        <primary_value> 3.7080000000e+00
</primary_value>
                        <secondary_value> 3.4782000000e+00
</secondary_value>
                        <value> NaN </value>
                        <unknown_datapoints> 0 </unknown_datapoints>
                        </ds>
                </cdp_prep>
                <database>
                        <!-- 2007-03-21 11:00:00 EDT / 1174489200 -->
<row><v> NaN </v></row>
                        <!-- 2007-03-21 11:05:00 EDT / 1174489500 -->
<row><v> NaN </v></row>
..
..                      <!-- 2007-03-23 10:05:00 EDT / 1174658700 -->
<row><v> 3.1933733333e+00 </v></row>
                        <!-- 2007-03-23 10:10:00 EDT / 1174659000 -->
<row><v> 3.6878266667e+00 </v></row>
                        <!-- 2007-03-23 10:15:00 EDT / 1174659300 -->
<row><v> 3.6010800000e+00 </v></row>
                        <!-- 2007-03-23 10:20:00 EDT / 1174659600 -->
<row><v> 3.1187333333e+00 </v></row>
                        <!-- 2007-03-23 10:25:00 EDT / 1174659900 -->
<row><v> 3.3115000000e+00 </v></row>
                        <!-- 2007-03-23 10:30:00 EDT / 1174660200 -->
<row><v> 3.6026266667e+00 </v></row>
                        <!-- 2007-03-23 10:35:00 EDT / 1174660500 -->
<row><v> 3.7042866667e+00 </v></row>
                        <!-- 2007-03-23 10:40:00 EDT / 1174660800 -->
<row><v> 3.6735733333e+00 </v></row>
                        <!-- 2007-03-23 10:45:00 EDT / 1174661100 -->
<row><v> 3.7481866667e+00 </v></row>
                        <!-- 2007-03-23 10:50:00 EDT / 1174661400 -->
<row><v> 3.1970000000e+00 </v></row>
                        <!-- 2007-03-23 10:55:00 EDT / 1174661700 -->
<row><v> 3.7080000000e+00 </v></row>
                </database>
        </rra>



I have the following in my hobbitgrpah.cfg:


[GCM]
        TITLE GCM Latency Monitor
        YAXIS Micro Seconds (uSec)
        DEF:lat=GCM.rrd:latency:AVERAGE
        LINE2:lat#00CCCC:uSeconds
        COMMENT:\n
        GPRINT:lat:LAST:Latency \: %5.11f%s (cur)
        GPRINT:lat:MAX: \: %5.11f%s (max)
        GPRINT:lat:MIN: \: %5.11f%s (min)
        GPRINT:lat:AVERAGE: \: %5.11f%s (avg)\n

[RTE]
        TITLE RTE Latency Monitor
        YAXIS Micro Seconds (uSec)
        DEF:latency=RTE.rrd:latency:AVERAGE
        LINE2:latency#00CCCC:uSeconds
        COMMENT:\n
        GPRINT:latency:LAST:Latency \: %5.11f%s (cur)
        GPRINT:latency:MAX: \: %5.11f%s (max)
        GPRINT:latency:MIN: \: %5.11f%s (min)
        GPRINT:latency:AVERAGE: \: %5.11f%s (avg)\n
[SWAP]
        TITLE SWAP Latency Monitor
        YAXIS Micro Seconds (uSec)
        DEF:foo=SWAP.rrd:latency:AVERAGE
        LINE2:foo#00CCCC:uSeconds
        COMMENT:\n
        GPRINT:foo:LAST:Latency \: %5.11f%s (cur)
        GPRINT:foo:MAX: \: %5.11f%s (max)
        GPRINT:foo:MIN: \: %5.11f%s (min)
        GPRINT:foo:AVERAGE: \: %5.11f%s (avg)\n


No matter which way I configure it the graphs do not generate, but
instead I get a small box that says:

"hobbit graph ncv:GCM"

I am currently running on a BL25P blade, RHAS4, rrdtool 1.2.15, hobbit
4.3.0-20061124.

I monitor several hundred hosts with no problem (Thanks Henrik!), but
have never been able to get this to work.  Any help is appreciated...

Larry




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