What is Jmeter Engine ? Is it same as Jmeter instance we have on our machine ? .. I want to understand difference between Jmeter instance and Jmeter engine , also how can we setup multiple engines on same machine so that I can put more load on application through difference engines..
I read somewhere, where one of the Jmeter expert mentioned that we can use 300 vusers at a given time , is that correct ? I dont see any limit on vusers I use in Jmeter thread group.. I can enter any number.. please clarify
Yes, Jmeter engine and jmeter instance is related terminology. One Jmeter engine can generate one instance of jmeter.
Set-up for configuring two Jmeter engines on same machine:
Pre-requisite:
Jmeter should be installed on both machines
Steps:
1.Set-up master machine -
Add machine2 ip (slave machine ip) in jmeter.properties file of machine1 (master machine)
2.Set-up slave machine - Run Jmeter-server.bat from machine2. This will make machine2 as slave
3.Launch Jmeter from machine1. You will be able to see slave engine ip in remote start
4.You can use remote start option, this will run Jmeter test cases from both the machines
Related
There is a one service which is running on localhost (remote machine) and needs to be START before running
the HTTP sampler and STOP after execution. Ex- http://localhost:8080//XYZ. Is it possible to send instruction to that remote machine from jmeter to start and stop.
It is, depending on the operating system of the remote machine and the machine where JMeter is running you can use:
OS Process Sampler
SSH Command Sampler
JSR223 Sampler and JCIFS library
See How to Run External Commands and Programs Locally and Remotely from JMeter for more information on the overall concept and some examples.
I need to analyse the performance reports of my server for which I am using Server Performance Monitoring in Jmeter which needs an installation of Perfmon metrics collector and Perfmon Server Agent. But, as I have installed Jmeter on local and I do not have the rights to install anything on Server, I am not able to install Perfmon Server agent to get the reports. However, I came to know that a Windows server has an inbuilt Perfmon installed but I do not know how to use it.
Hence, I need help in sending the reports from server using Windows performance monitor and collecting those reports in Jmeter installed on local machine.
You have 2 options:
In Windows Performance Monitor there is an option to connect to remote machine:
You can create your own Data Collector Set and write counters data into a file. Once your test is finished you will be able to copy the file and analyze the collected metrics.
Unfortunately you won't be able to integrate Windows Performance Monitor reports into a JMeter test, it will be a standalone monitoring option. Basically Server Agent doesn't require "installation", you can just copy it over and make sure JMeter can connect to port 4444, see How to Monitor Your Server Health & Performance During a JMeter Load Test article for details.
I have written a jmeter script for my web application which runs from single system.
What should i do so that i can run same script from some other IP addresses/systems.
I ran it on other system connected in LAN (REMOTE RUN), but it ran only on that system.
I want to run same script from multiple IPs/Systems. Is there is any setting or update we can do in jmeter so that it will run those script from a bunch of IP addresses?
Or, Can we run jmeter from some browser which uses multiple proxies ?
Thanks in advance.
If your computer is configured to provide several IP addresses on a certain NIC or has different NICs you can tell JMeter which IP address to use for outgoing connections.
Credits for this solution go to blazemeter, the information has been taken from their blog.
Can Jmeter master be used as a load generator instance in distributed testing framework? Since we mention host IPs, will it work to mention localhost and generate load from master?
Thanks,
Madhav
If you are launching from JMeter UI to start all instances - 127.0.0.1 (localhost) is available.
Both JMeter documentation pages are good source of information.
https://jmeter.apache.org/usermanual/jmeter_distributed_testing_step_by_step.pdf
http://jmeter.apache.org/usermanual/remote-test.html
I am using 'jp#gc - PerfMon Metrics Collector' Lister for this and as you know it requires 'ServerAgent' running on the connecting server.
Step by step instruction would be very helpful.
And also, if anyone knows of any better alternatives to monitor the servers using jmeter then please share with me, it would be a great help.
You can follow the below Steps:
Download ServerAgent2.2.1.zip file(URL: http://jmeter-plugins.org/downloads/all/)
Unzip and Paste the folder in the Machine where Server is hosted.
Run startAgent.sh(Linux) and startAgent.bat(Windows) in the Server Machine.
Get the Server IP and add the same in the Jmeter Properties File.
remote_hosts=
Add the (Perfmon metrics collector)Listener in the Test Plan.
Host/IP: Add the Server Host/IP
Port: By default 4444
Metrics to be collected: What metric you want to collect.