[Xymon] graph shows incorrect data

Naveen Kumar Venkatesh naveen20 at gmail.com
Tue Sep 10 15:51:59 CEST 2013


Hi,
 I am new to Xymon. I have setup Xymon to monitor my performance servers. I
have written custom scripts to collect some specific data, and added it to
clientlaunch.cfg to run at every 5 second interval

[gc]
        ENVFILE $XYMONCLIENTHOME/etc/xymonclient.cfg
        CMD $XYMONCLIENTHOME/ext/gc_stats.sh
        LOGFILE $XYMONCLIENTHOME/tmp/msg.gc_stats.log
        INTERVAL 5

gc_stats.sh looks like this.
======================
 pid=`pgrep rdu`
#Fact=1024.0
Fact=0.0009765
gc=`/opt/jdk1.6.0_24/bin/jstat -gc ${pid} |tail -1`
IFS=' '
read -a array <<< "$gc"
EdenCap=${array[4]}
EdenUsed=${array[5]}
OldCap=${array[6]}
OldUsed=${array[7]}
PermCap=${array[8]}
PermUsed=${array[9]}

EdenCap=`echo "$EdenCap * $Fact"|bc`
EdenUsed=`echo "$EdenUsed * $Fact"|bc`
OldCap=`echo "$OldCap * $Fact"|bc`
OldUsed=`echo "$OldUsed * $Fact"|bc`
PermCap=`echo "$PermCap * $Fact"|bc`
PermUsed=`echo "$PermUsed * $Fact"|bc`

 COLOR=green
 COLUMN=HeapStats

 MSG="EdenCapacity: ${EdenCap}
   EdenUsed: ${EdenUsed}
   OldCapacity: ${OldCap}
   OldUsed: ${OldUsed}
   PermCapacity: ${PermCap}
   PermUsed: ${PermUsed}
      "

   # Tell Xymon about it
   $XYMON $XYMSRV "status $MACHINE.$COLUMN $COLOR `date`

   ${MSG}
   "

   exit 0
========================================
On the server side, I have added the following in xymonserver.cfg
-------------------------
TEST2RRD="cpu=la,disk,inode,qtree,memory,$PINGCOLUMN=tcp,http=tcp,dns=tcp,dig=tcp,time=ntpstat,vmstat,iostat,netstat,temperature,apache,bind,sendmail,mailq,nmailq=mailq,socks,bea,iishealth,citrix,bbgen,bbtest,bbproxy,hobbitd,files,procs=processes,ports,clock,lines,ops,stats,cifs,JVM,JMS,HitCache,Session,JDBCConn,ExecQueue,JTA,TblSpace,RollBack,MemReq,InvObj,snapmirr,snaplist,snapshot,if_load=devmon,temp=devmon,paging,mdc,mdchitpct,cics,dsa,getvis,maxuser,nparts,xymongen,xymonnet,xymonproxy,xymond,HeapStats=ncv"

NCV_HeapStats="EdenCapacity:GAUGE,EdenUsed:GAUGE,OldCapacity:GAUGE,OldUsed:GAUGE,PermCapacity:GAUGE,PermUsed:GAUGE"

GRAPHS="la,disk,inode,qtree,files,processes,memory,users,vmstat,iostat,tcp.http,tcp,ncv,netstat,ifstat,mrtg::1,ports,temperature,ntpstat,apache,bind,sendmail,mailq,socks,bea,iishealth,citrix,bbgen,bbtest,bbproxy,hobbitd,clock,lines,ops,stats,cifs,JVM,JMS,HitCache,Session,JDBCConn,ExecQueue,JTA,TblSpace,RollBack,MemReq,InvObj,snapmirr,snaplist,snapshot,devmon::1,if_load::1,temp,paging,mdc,mdchitpct,cics,dsa,getvis,maxuser,nparts,xymongen,xymonnet,xymonproxy,xymond,HeapStats"
----------------------------

I have added the below in graphs.cfg
==============================
      [HeapStats]
        TITLE HeapStats info
        YAXIS MegaBytes
        -l 0.000
        DEF:EdenUsed=HeapStats.rrd:EdenUsed:AVERAGE
        DEF:EdenCapacity=HeapStats.rrd:EdenCapacity:AVERAGE
        DEF:OldCapacity=HeapStats.rrd:OldCapacity:AVERAGE
        DEF:OldUsed=HeapStats.rrd:OldUsed:AVERAGE
        DEF:PermCapacity=HeapStats.rrd:PermCapacity:AVERAGE
        DEF:PermUsed=HeapStats.rrd:PermUsed:AVERAGE
        LINE1:EdenCapacity#FF0000: EdenCapacity
        LINE2:EdenUsed#808080: EdenUsed
        LINE3:OldCapacity#00CC00: OldCapacity
        LINE4:OldUsed#00CCCC: OldUsed
        LINE5:PermCapacity#FFFF00: PermCapacity
        LINE6:PermUsed#CFFFF0: PermUsed
        COMMENT:\n
        GPRINT:EdenCapacity:LAST:EdenCapacity \: %5.1lf (cur)
        GPRINT:EdenCapacity:MAX: \: %5.1lf (max)
        GPRINT:EdenCapacity:MIN: \: %5.1lf (min)
        GPRINT:EdenCapacity:AVERAGE: \: %5.1lf (avg)\n
        COMMENT:\n
        GPRINT:EdenUsed:LAST:EdenUsed \: %5.1lf (cur)
        GPRINT:EdenUsed:MAX: \: %5.1lf (max)
        GPRINT:EdenUsed:MIN: \: %5.1lf (min)
        GPRINT:EdenUsed:AVERAGE: \: %5.1lf (avg)\n
        COMMENT:\n
        GPRINT:OldCapacity:LAST:OldCapacity \: %5.1lf (cur)
        GPRINT:OldCapacity:MAX: \: %5.1lf (max)
        GPRINT:OldCapacity:MIN: \: %5.1lf (min)
        GPRINT:OldCapacity:AVERAGE: \: %5.1lf (avg)\n
        COMMENT:\n
        GPRINT:OldUsed:LAST:OldUsed \: %5.1lf (cur)
        GPRINT:OldUsed:MAX: \: %5.1lf (max)
        GPRINT:OldUsed:MIN: \: %5.1lf (min)
        GPRINT:OldUsed:AVERAGE: \: %5.1lf (avg)\n
        COMMENT:\n
        GPRINT:PermCapacity:LAST:PermCapacity \: %5.1lf (cur)
        GPRINT:PermCapacity:MAX: \: %5.1lf (max)
        GPRINT:PermCapacity:MIN: \: %5.1lf (min)
        GPRINT:PermCapacity:AVERAGE: \: %5.1lf (avg)\n
        COMMENT:\n
        GPRINT:PermUsed:LAST:PermUsed \: %5.1lf (cur)
        GPRINT:PermUsed:MAX: \: %5.1lf (max)
        GPRINT:PermUsed:MIN: \: %5.1lf (min)
        GPRINT:PermUsed:AVERAGE: \: %5.1lf (avg)\n
============================

In the HeapStats (column) page, I see the latest values obtained in the
text message like this.
=========
Tue Sep 10 12:15:48 IST 2013

   EdenCapacity: 1080.8058240
   EdenUsed: 1053.1013472
   OldCapacity: 2744.8243200
   OldUsed: 91.4092861
   PermCapacity: 44.9346240
   PermUsed: 44.7480148


============

But, when it comes to graph it is showing stale data always. It is not
reflecting the latest data
[image: xymongraph ncv:HeapStats]
======

Sorry for the long mail. Could some one help me with this? I want all
the data being collected to be persisted in the rrd files.

Any help is very much appreciated.

Thanks,

NV
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