JMeter: Distributed (Remote) Testing in Linux Environment

Question

I setup a distributed load testing environment using JMeter. I am using Three Linux Machines (RedHat)(IPs:xxx.xxx.xxx.121,xxx.xxx.xxx.122,xxx.xxx.xxx.123) using Secured Shell from my Windows 8.1.

I have fulfilled the prerequisite to perform Distributed test:

1. All machines(Client & Slaves) are in the same subnet.
2. Firewall is disabled for all machines.
3. JMeter(2.13) and JDk version(1.6.0_25) are same for all.

Client(Master) Machine :xxx.xxx.xxx.123 Server(Slave) Machines: xxx.xxx.xxx.122,xxx.xxx.xxx.121

I did the following:

1) Added the following to client (master) jmeter.properties file:

remote_hosts= xxx.xxx.xxx.122,xxx.xxx.xxx.121

2) Added the following to servers (in each slave machines) jmeter-server:

RMI_HOST_DEF=-Djava.rmi.server.hostname=xxx.xxx.xxx.123(Client Machine IP)

3) Then started jmeter-server from those two Slave machines(xxx.xxx.xxx.122,xxx.xxx.xxx.121) using this command

./jmeter-server

and get following output.Which means the slave machines are started.

Output of xxx.xxx.xxx.121:

Created remote object: UnicastServerRef [liveRef: [endpoint:[xxx.xxx.xxx.123:41864](local),objID:[1707296d:154c281318b:-7fff, -8101068266055605468]]]

Output of xxx.xxx.xxx.122:

Using local port: 4000
Created remote object: UnicastServerRef [liveRef: [endpoint:[xxx.xxx.xxx.123:4000](local),objID:[-2a2acf13:154c285ffa2:-7fff, 2939294752655639469]]]

Now I ran the following command from client machine(xxx.xxx.xxx.123) to start remote tests.

./jmeter -n -t RemoteTest.jmx -r

It provided me with the following output:

Creating summariser <summary>
Created the tree successfully using RemoteTest.jmx
Configuring remote engine: xxx.xxx.xxx.121
Configuring remote engine: xxx.xxx.xxx.122
Starting remote engines
Starting the test @ Wed May 18 06:27:52 GMT 2016 (1463552872376)
Error in rconfigure() method java.rmi.ConnectException: Connection refused to host: xxx.xxx.xxx.123; nested exception is: 
        java.net.ConnectException: Connection refused
Error in rconfigure() method java.rmi.ConnectException: Connection refused to host: xxx.xxx.xxx.123; nested exception is: 
        java.net.ConnectException: Connection refused
Remote engines have been started

Output of jmeter.log file (xxx.xxx.xxx.123)

2016/05/18 06:52:22 INFO  - jmeter.util.JMeterUtils: Setting Locale to en_GB 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: Loading user properties from: /usr/apache-jmeter-2.13/bin/user.properties 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: Loading system properties from: /usr/apache-jmeter-2.13/bin/system.properties 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: Copyright (c) 1998-2015 The Apache Software Foundation 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: Version 2.13 r1665067 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: java.version=1.6.0_25 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: java.vm.name=Java HotSpot(TM) 64-Bit Server VM 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: os.name=Linux 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: os.arch=amd64 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: os.version=2.6.32-358.el6.x86_64 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: file.encoding=UTF-8 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: Default Locale=English (United Kingdom) 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: JMeter  Locale=English (United Kingdom) 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: JMeterHome=/usr/apache-jmeter-2.13 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: user.dir  =/usr/apache-jmeter-2.13/bin 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: PWD       =/usr/apache-jmeter-2.13/bin 
2016/05/18 06:52:22 INFO  - jmeter.JMeter: IP: 127.0.0.1 Name: Switch018 FullName: localhost.localdomain 
2016/05/18 06:52:22 INFO  - jmeter.services.FileServer: Default base='/usr/apache-jmeter-2.13/bin' 
2016/05/18 06:52:22 INFO  - jmeter.services.FileServer: Set new base='/usr/apache-jmeter-2.13/bin' 
2016/05/18 06:52:22 INFO  - jmeter.save.SaveService: Testplan (JMX) version: 2.2. Testlog (JTL) version: 2.2 
2016/05/18 06:52:22 INFO  - jmeter.save.SaveService: Using SaveService properties file encoding UTF-8 
2016/05/18 06:52:22 INFO  - jmeter.save.SaveService: Using SaveService properties file version 1656252 
2016/05/18 06:52:22 INFO  - jmeter.save.SaveService: Using SaveService properties version 2.8 
2016/05/18 06:52:22 INFO  - jmeter.save.SaveService: All converter versions present and correct 
2016/05/18 06:52:22 INFO  - jmeter.save.SaveService: Loading file: RemoteTest.jmx 
2016/05/18 06:52:22 INFO  - jmeter.protocol.http.control.CookieManager: Settings: Delete null: true Check: true Allow variable: true Save: false Prefix: COOKIE_ 
2016/05/18 06:52:22 INFO  - jmeter.protocol.http.sampler.HTTPSamplerBase: Cannot find .className property for htmlParser, using default 
2016/05/18 06:52:22 INFO  - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for text/html is  
2016/05/18 06:52:22 INFO  - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for application/xhtml+xml is  
2016/05/18 06:52:22 INFO  - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for application/xml is  
2016/05/18 06:52:22 INFO  - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for text/xml is  
2016/05/18 06:52:22 INFO  - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for text/vnd.wap.wml is org.apache.jmeter.protocol.http.parser.RegexpHTMLParser 
2016/05/18 06:52:23 INFO  - jmeter.JMeter: Creating summariser <summary> 
2016/05/18 06:52:23 INFO  - jmeter.engine.DistributedRunner: Configuring remote engine: xxx.xxx.xxx.121 
2016/05/18 06:52:23 INFO  - jmeter.engine.DistributedRunner: Configuring remote engine: xxx.xxx.xxx.122 
2016/05/18 06:52:23 INFO  - jmeter.engine.DistributedRunner: Starting remote engines 
2016/05/18 06:52:23 INFO  - jmeter.engine.DistributedRunner: Starting the test @ Wed May 18 06:52:23 GMT 2016 (1463554343104) 
2016/05/18 06:52:23 INFO  - jmeter.engine.ClientJMeterEngine: running clientengine run method 
2016/05/18 06:52:23 INFO  - jmeter.engine.util.CompoundVariable: Note: Function class names must contain the string: '.functions.' 
2016/05/18 06:52:23 INFO  - jmeter.engine.util.CompoundVariable: Note: Function class names must not contain the string: '.gui.' 
2016/05/18 06:52:23 INFO  - jmeter.samplers.SampleEvent: List of sample_variables: [] 
2016/05/18 06:52:23 INFO  - jmeter.samplers.BatchSampleSender: Using batching (client settings) for this run. Thresholds: num=100, time=60000 
2016/05/18 06:52:23 INFO  - jmeter.samplers.DataStrippingSampleSender: Using DataStrippingSampleSender for this run 
2016/05/18 06:52:23 INFO  - jmeter.samplers.BatchSampleSender: Using batching (client settings) for this run. Thresholds: num=100, time=60000 
2016/05/18 06:52:23 INFO  - jmeter.samplers.DataStrippingSampleSender: Using DataStrippingSampleSender for this run 
2016/05/18 06:52:23 ERROR - jmeter.engine.ClientJMeterEngine: Error in rconfigure() method java.rmi.ConnectException: Connection refused to host: xxx.xxx.xxx.123; nested exception is: 
        java.net.ConnectException: Connection refused 
2016/05/18 06:52:23 INFO  - jmeter.engine.ClientJMeterEngine: Interrupting RMI Reaper 
2016/05/18 06:52:23 INFO  - jmeter.engine.ClientJMeterEngine: running clientengine run method 
2016/05/18 06:52:23 INFO  - jmeter.samplers.BatchSampleSender: Using batching (client settings) for this run. Thresholds: num=100, time=60000 
2016/05/18 06:52:23 INFO  - jmeter.samplers.DataStrippingSampleSender: Using DataStrippingSampleSender for this run 
2016/05/18 06:52:23 INFO  - jmeter.samplers.BatchSampleSender: Using batching (client settings) for this run. Thresholds: num=100, time=60000 
2016/05/18 06:52:23 INFO  - jmeter.samplers.DataStrippingSampleSender: Using DataStrippingSampleSender for this run 
2016/05/18 06:52:23 ERROR - jmeter.engine.ClientJMeterEngine: Error in rconfigure() method java.rmi.ConnectException: Connection refused to host: xxx.xxx.xxx.123; nested exception is: 
        java.net.ConnectException: Connection refused 
2016/05/18 06:52:23 INFO  - jmeter.engine.DistributedRunner: Remote engines have been started

So what could be the exact solution to overcome this Exception. I have spent the last two days exploring StackOverflow and Stack Exchange for similar kind of questions and already tried almost all of the possible solutions but still can't get rid of this exception.Actually, I failed!!!!So please be specific and detail at your answers.

Answer 1

RMI_HOST_DEF=-Djava.rmi.server.hostname=xxx.xxx.xxx.123 should be either

RMI_HOST_DEF=-Djava.rmi.server.hostname=localhost 

or

RMI_HOST_DEF=-Djava.rmi.server.hostname=<ip of jmeter server>

Also this should be set if you are getting this error

ERROR - jmeter.engine.ClientJMeterEngine: java.rmi.ConnectException: Connection refused to host: 127.0.0.1