Need Help with cacti?

[ajeetraina]

We want to monitor java heap size of remote machine using cacti. Any one who have any tutorial or hint how can I do that?

[gandalf]

We do so in our company by using cgi-scripts on that host.
Please see 1st link of my sig to learn how to implement custom scripts with cacti
R.

[ajeetraina]

Please do help me with the same.
Can you please forward the requisite script pls?

[gandalf]

No, I can't. They are very company-dependant.
R.

[ajeetraina]

I have installed cacti on our local environemnt and configured remote host monitoring.We want to monitor java heap size of remote machine using cacti.I am able to import the tempate and made the JVM changes .But still it's not plotting the graph.

[ajeetraina]

Code: Select all

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=1260368340 \
--end=1260454740 \
--title="10.236.70.50 - JVM Heap Utilization" \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
COMMENT:"From 2009/12/09 09\:19\:00 To 2009/12/10 09\:19\:00\c" \
COMMENT:"  \n" \
--vertical-label="" \
--slope-mode \
--font TITLE:12: \
--font AXIS:8: \
--font LEGEND:10: \
--font UNIT:8: \
DEF:a="/usr/local/apache_msa/cacti/rra/10_236_70_50_jvmmemoryheapmaxsiz_67.rrd":jvmMemoryHeapMaxSiz:AVERAGE \
DEF:b="/usr/local/apache_msa/cacti/rra/10_236_70_50_jvmmemoryheapcommit_66.rrd":jvmMemoryHeapCommit:AVERAGE \
DEF:c="/usr/local/apache_msa/cacti/rra/10_236_70_50_jvmmemoryheapused_68.rrd":jvmMemoryHeapUsed:AVERAGE \
LINE1:a#FF0000FF:"Max"  \
GPRINT:a:LAST:"      Current\:%8.2lf %s"  \
GPRINT:a:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:a:MAX:"Maximum\:%8.2lf %s\n"  \
LINE1:b#00FF00FF:"Committed"  \
GPRINT:b:LAST:"Current\:%8.2lf %s"  \
GPRINT:b:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:b:MAX:"Maximum\:%8.2lf %s\n"  \
AREA:c#0000FFFF:"Used"  \
GPRINT:c:LAST:"     Current\:%8.2lf %s"  \
GPRINT:c:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:c:MAX:"Maximum\:%8.2lf %s\n" 

The above is source code near the JVM Heap Cacti Graph but the graph is not displaying anything.

I did tried constructing the Memory Usage graph too and it is working.

Code: Select all

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=1260368623 \
--end=1260455023 \
--title="10.236.70.50 - Memory Usage" \
--rigid \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
COMMENT:"From 2009/12/09 09\:23\:43 To 2009/12/10 09\:23\:43\c" \
COMMENT:"  \n" \
--vertical-label="kilobytes" \
--slope-mode \
--font TITLE:12: \
--font AXIS:8: \
--font LEGEND:10: \
--font UNIT:8: \
DEF:a="/usr/local/apache_msa/cacti/rra/10_236_70_50_mem_buffers_25.rrd":mem_buffers:AVERAGE \
DEF:b="/usr/local/apache_msa/cacti/rra/10_236_70_50_mem_swap_26.rrd":mem_swap:AVERAGE \
CDEF:cdefa=a,1024,* \
CDEF:cdefe=b,1024,* \
AREA:cdefa#FF4105FF:"Free"  \
GPRINT:cdefa:LAST:"Current\:%8.2lf %s"  \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf %s\n"  \
AREA:cdefe#FFC73BFF:"Swap":STACK \
GPRINT:cdefe:LAST:"Current\:%8.2lf %s"  \
GPRINT:cdefe:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:cdefe:MAX:"Maximum\:%8.2lf %s\n" 

Pls Help me with the same.

[ajeetraina]

I think no one has ever configured JVM Heap with Cacti..
thats pretty amazing !!!
If there is someone pls help me with the issue..
I know there are lots of Cacti Freaker and wont let me down.

[gandalf]

Did you verify, that the OIDs, when polled via snmpwalk from command line, return valid data? I'm quite sure, that you will have to tell your JVM to answer SNMP requests.
R.