LRP Status Monitor

[ Home ] [ Mirror ] [ Download ] [ Documentation ] [ Install ] [ Troubleshooting ] [ Changelog ] [ Tips ] [ Archive ]

Windows users: Running the application without the Java console-window

To my great embarrasment, Guido Muesch pointed out to me that this "tip" was totally unnecessary - since the jdk includes the jawaw.exe executable, which does exactly that.
So, the short version of this tip is, use javaw.exe instead of java.exe. My Windows installation also includes wjview.exe, which seems to be working just fine as well.
So there's really no need to be "hacking" your java.exe, but I'll leave this tip as an example how it could be done (and also, so it doesn't seem like I'm trying to cover my tracks...)

<OBSOLETE>
Getting this to work requires that you have Microsoft Visual Studio (or rather the editbin-executable that comes with Visual-Studio).
To generate a special java.exe that doesn't show a console, open a command prompt, go to the directory java.exe resides in and do the following:

copy java.exe java_gui.exe
editbin /SUBSYSTEM:WINDOWS java_gui.exe

That's all, you now have a special version of your java.exe (java_gui.exe) that will not open a console-window. Of course, that also means you won't see any error-messages...
</OBSOLETE>

All users: Using the application to monitor several servers at once

Even though this is in the documentation, I wanted to point this out again. It is possible (but only using the application, not by using the applet) to monitor several different servers with one instance of the program.

To do this, all you need to do is to specify several [-configfile htmlFilename] -hostname routername [paramName paramValue] [paramName paramValue] blocks. For example, if you want to monitor router1 and router2, and you have separate html-files for those, the syntax would be:

java LrpStatApplication -hostname router1 -configfile router1.html -hostname router2 -configfile router2.html

All users of non-LRP/LEAF machines: Extended script for the server

This script was sent to my by Andrew Hoying. It will not work with LEAF or LRP machines (at least not without adding awk and maybe also bash).
This is provided "as is", I can't provide any support whatsoever (since I can't test this on my lrp box and also because I know so little shell scripting).

#!/bin/sh -e
trap "exit 1" 1
trap "exit 1" 2

cpu1=`awk '/cpu / {printf "%i %i",$2+$3+$4,$2+$3+$4+$5}' /proc/stat`
ctxt1=`awk '/ctxt/ {print $2}' /proc/stat`
ctxt=0
cpu=0
connects=0
uniq=0
sleep 1

while [ 1 ]
do
  cpu2=`awk '/cpu / {printf "%i %i",$2+$3+$4,$2+$3+$4+$5}' /proc/stat`
  ctxt2=`awk '/ctxt/ {print $2}' /proc/stat`
  cputest=`echo $cpu1' '$cpu2|awk '{printf "%i", (($3-$1)/($4-$2))*100}'`
  cpu=$(($cpu+$cputest))
  cpu1=$cpu2
  ctxttest=$((($ctxt2-$ctxt1)/10))
  ctxt=$(($ctxt+$ctxttest))
  ctxt1=$ctxt2
  connects=$(($connects + `cat /proc/net/ip_conntrack|wc -l`))
  uniq=$(($uniq + `cat /proc/net/ip_conntrack |cut -d= -f 2|cut -d' ' -f 1|sort -u|wc -l`))
  cat /proc/net/dev
  echo cpu0:$cpu $cputest 0 0 0 0 0 0 $ctxt $ctxttest 0 0 0 0 0 0
  echo conn0:$connects 0 0 0 0 0 0 0 $uniq 0 0 0 0 0 0 0
  echo
  echo "#"
  sleep 1
done

The corresponding html file looks like this:

<HTML>
<TITLE>Test page for lrp-Status monitor</TITLE>
<BODY>
<H3>lrp-Status monitor</H3>
<APPLET CODE="LrpStatApplet.class"  ARCHIVE="lrpStat09.jar" WIDTH="100%" HEIGHT="100%">

        <PARAM NAME=INFOPORT VALUE="60182">
        <PARAM NAME=CONTROL_FOREGROUND_COLOR VALUE="333366">
        <PARAM NAME=DATA_BACKGROUND_COLOR VALUE="333366">
        <PARAM NAME=DATA_FOREGROUND_COLOR1 VALUE="FFFFFF">
        <PARAM NAME=DATA_FOREGROUND_COLOR2 VALUE="cc9900">
        <PARAM NAME=GRID_COLOR VALUE="63659c">

        <PARAM NAME=DEV0_NAME VALUE="eth1">
        <PARAM NAME=DEV0_LABEL VALUE="Internet Traffic">
        <PARAM NAME=DEV0_TYPE VALUE="static">
        <PARAM NAME=DEV0_MAX VALUE="auto">
        <PARAM NAME=DEV0_MODE VALUE="line">
        <PARAM NAME=DEV0_GRID_INTERVAL VALUE="50000">
        <PARAM NAME=DEV0_DRAW_LEGEND VALUE="1">

        <PARAM NAME=DEV1_NAME VALUE="cpu0">
        <PARAM NAME=DEV1_LABEL VALUE="Cpu Usage/Context Switches">
        <PARAM NAME=DEV1_TYPE VALUE="static">
        <PARAM NAME=DEV1_MAX VALUE="100">
        <PARAM NAME=DEV1_MODE VALUE="line">
        <PARAM NAME=DEV1_GRID_INTERVAL VALUE="10">
        <PARAM NAME=DEV1_DRAW_LEGEND VALUE="0">
        <PARAM NAME=DEV1_DONT_NORMALIZE VALUE="1">
        <PARAM NAME=DEV1_ABSOLUTE VALUE="1">

        <PARAM NAME=DEV2_NAME VALUE="conn0">
        <PARAM NAME=DEV2_LABEL VALUE="Current Connections/Unique IPs">
        <PARAM NAME=DEV2_TYPE VALUE="static">
        <PARAM NAME=DEV2_MAX VALUE="auto">
        <PARAM NAME=DEV2_MODE VALUE="line">
        <PARAM NAME=DEV2_GRID_INTERVAL VALUE="100">
        <PARAM NAME=DEV2_DRAW_LEGEND VALUE="0">
        <PARAM NAME=DEV2_DONT_NORMALIZE VALUE="1">
        <PARAM NAME=DEV2_ABSOLUTE VALUE="1">

</APPLET></BODY>
</HTML>

Links to related sites/resources

Last modified: January 15th, 2002 by webmaster@hejl.de