Scripts to monitor Wowza connections from MRTG and Munin

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Hi,

Here i will post scripts to monitor total and live connections for wowza servers. This will work on Linux(or Unix ?) platforms.

Someone may find this useful.

You will need the JMX command-line interface(you can download it from this forums).

I think this is the JMX command-line tool : http://www.wowza.com/forums/showthread.php?t=5668

MRTG

Create script /root/scripts/get_wowza_connections.sh

#!/bin/bash
TOTALCONNS=`java -cp /root/scripts JMXCommandLine -jmx service:jmx:rmi://$1:8084/jndi/rmi://$1:8085/jmxrmi -user admin -pass jmxpassword getConnectionCounts`
LIVECONNS=`java -cp /root/scripts JMXCommandLine -jmx service:jmx:rmi://$1:8084/jndi/rmi://$1:8085/jmxrmi -user admin -pass jmxpassword getConnectionCounts _defaultVHost_:liverepeater`
echo "$TOTALCONNS"
echo "$LIVECONNS"

Be sure to replace the values for username and password .

liverepeater is the name of your live app.

Test the script :

/root/scripts/get_wowza_connections.sh 10.0.0.1

It should print two numbers : Total connections and connections to your live application.

Put this snippet in your mrtg.conf

Target[edge1.conns]: `/root/scripts/get_wowza_connections.sh 10.0.0.1`
Directory[edge1.conns]:     myhostname
Options[edge1.conns]: nopercent,growright,gauge,noinfo
Title[edge1.conns]: Open Wowza connections  -- edge1.btvcluster
PageTop[edge1.conns]: <H1>Open Wowza connections  -- edge1.btvcluster</H1>
MaxBytes[edge1.conns]: 10000
YLegend[edge1.conns]: # conns
ShortLegend[edge1.conns]: connections
LegendI[edge1.conns]:  Total Connections:
LegendO[edge1.conns]:  Live Cons
Legend1[edge1.conns]: Open Wowza connections  -- myhostname

Munin:

Create script /root/scripts/get_wowza_connections.sh

#!/bin/bash
TOTALCONNS=`java -cp /root/scripts JMXCommandLine -jmx service:jmx:rmi://$1:8084/jndi/rmi://$1:8085/jmxrmi -user admin -pass jmxpassword getConnectionCounts`
LIVECONNS=`java -cp /root/scripts JMXCommandLine -jmx service:jmx:rmi://$1:8084/jndi/rmi://$1:8085/jmxrmi -user admin -pass jmxpassword getConnectionCounts _defaultVHost_:liverepeater`
echo "$TOTALCONNS $LIVECONNS"

Create munin plugin as follows (usually in /etc/munin/plugins/ ):

#!/bin/sh

case $1 in
   config)
        cat <<'EOM'
graph_title Wowza connections
graph_scale no
graph_category wowza
graph_vlabel connections
total_connections.label total connections
live_connections.label live connections
total_connections.draw AREA
live_connections.draw LINE1
EOM
        exit 0;;
esac

cons=`/root/scripts/get_wowza_connections.sh 10.0.0.1`

tot=`echo $cons | cut -d' ' -f1`
live=`echo $cons | cut -d' ' -f2`

echo -n "total_connections.value "
echo $tot

echo -n "live_connections.value "
echo $live

Here is the result:

Answer 1

Answer by tuan phan van · Jun 07, 2011 at 01:32 AM

Hi georgi,

Your post is very helpful for me, but i can't run it for my wowza. When i test the scrip:

sh /root/scripts/get_wowza_connections.sh 127.0.0.1

It showed:

ERROR: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: 127.0.0.1; nested exception is:

java.net.ConnectException: Connection refused]

ERROR: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: 127.0.0.1; nested exception is:

java.net.ConnectException: Connection refused]

I don't know what's wrong, pls help me

thanks

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Georgi Ivanov · Jun 07, 2011 at 12:04 PM 0

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Hi,

I'm guessing but i think 127.0.0.1 is not the IP where JMX is listening. If i recall u can see these settings in Server.xml

You need to configure the IP in the config file.

Answer 2

Answer by Richard Lanham · Jun 07, 2011 at 10:14 AM

JConsole/JMX quickstart guide is here:

http://www.wowza.com/forums/content.php?217#jmx

Richard

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tuan phan van · Jun 16, 2011 at 08:37 PM 0

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Hi georgi

I have configured JMX and Jconsole,but when i run Jconsole, it doesn't appear the image likes you, how can i get that image?

Answer 3

Answer by Richard Lanham · Aug 23, 2011 at 10:32 PM

Should run same on Windows. Here is setup guide for JMX command line:

http://www.wowza.com/forums/content.php?151-Sample-Java-class-for-creating-a-command-line-interface-to-control-Wowza-Media-Server

Richard

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danny lau · Mar 01, 2012 at 04:36 PM 0

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Should run same on Windows. Here is setup guide for JMX command line:

http://www.wowza.com/forums/content.php?151-Sample-Java-class-for-creating-a-command-line-interface-to-control-Wowza-Media-Server

Richard

I have installed mrtg and perl on my machine. However I have no idea on how to getting those graphs in windows.

Could anyone advise, please?

Answer 4

Answer by Richard Lanham · Mar 01, 2012 at 02:38 PM

Regarding the graphs at the top of this thread posted by "georgi", I'm not familiar with that. You can get connection count graphs in JConsole like this:

http://www.wowza.com/forums/content.php?174-How-to-graph-individual-values-(ex.-concurrent-connections-to-the-server)

Richard

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danny lau · Mar 02, 2012 at 11:16 AM 0

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Regarding the graphs at the top of this thread posted by "georgi", I'm not familiar with that. You can get connection count graphs in JConsole like this:

http://www.wowza.com/forums/content.php?174-How-to-graph-individual-values-(ex.-concurrent-connections-to-the-server)

Richard

Thanks, I got the graph in JConsole :cool:

However, how if I wanna to use MRTG to plot the graph? Any suggestions on how to do so?

lee lee danny lau · Jan 05, 2013 at 11:31 AM 0

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Hi,

How about Cacti? I'm trying to monitor the current connection through Cacti. Any help would be appreciated

Answer 5

Answer by Richard Lanham · Jan 05, 2013 at 02:20 PM

Wowza EC2 AMIs used to include Cacti but do not now. We don't support it. Take a look at these HTTPProviders that provide real-time data for Wowza

http://www.wowza.com/forums/content.php?129-How-to-get-realtime-connection-counts-from-Wowza-Media-Server

Richard

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lee lee · Jan 07, 2013 at 05:22 PM 0

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Hi Richard,

What I want is to create graph about current connection (CCU) statistics for monitoring. The built-in method only provide real-time data.

Is there an easy way to achieve this? I'm trying to use munin, according to geogri tutorial but nothing work.

Lee

Answer 6

Answer by Richard Lanham · Jan 07, 2013 at 02:09 PM

Lee,

I am not sure about the contributed scripts at the top of this thread. These HTTPProviders include current connection counts. If you want to graph that over time you can poll these at intervals and build a set to graph

Richard

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Answer 7

Answer by Eliran Hayun · Aug 23, 2011 at 08:50 PM

Hi,

Did someone convert the scripts to Windows?

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Answer 8

Answer by Randall Auriemma · Mar 01, 2012 at 06:41 PM

Danny, you'd have to look at the docs for MRTG or Munin, depending on which one you decide to use.

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Ekachai Woranut · Jul 26, 2012 at 12:49 AM 0

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I try as below have error

root@wowza:~# /root/scripts/get_wowza_connections.sh localhost

Exception in thread "main" java.lang.NoClassDefFoundError: JMXCommandLine

Caused by: java.lang.ClassNotFoundException: JMXCommandLine

at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

Could not find the main class: JMXCommandLine. Program will exit.

Exception in thread "main" java.lang.NoClassDefFoundError: JMXCommandLine

Caused by: java.lang.ClassNotFoundException: JMXCommandLine

at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

Could not find the main class: JMXCommandLine. Program will exit.

indra cyd Ekachai Woranut · Oct 19, 2012 at 01:55 PM 0

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this features is free?

indra cyd indra cyd · Oct 20, 2012 at 12:30 PM 0

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can someone help how to create graph with rrdtool?using that script?

Scripts to monitor Wowza connections from MRTG and Munin

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