By default when we add monitor results at that time it will not show any host name. How can we add the sever name. Anyone can please explain it.
PerfMon Metrics Collector doesn't do any auto-discovery of Server Agents, you have to specify hostnames or IP addresses of servers you want to monitor manually like:
Click "Add Row" button
Provide server hostname or IP address, port and desired metric
Repeat steps 1 and 2 for all servers you want to monitor
When you start your test you'll be able to see server hostnames or IP addresses in upper-left corner of the generated chart:
See How to Monitor Your Server Health & Performance During a JMeter Load Test guide for end-to-end instructions on setting up server-side performance monitoring in your JMeter test
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As the title says, I have been tasked to do Load and Performance Testing on a Client's Server, I have followed all steps, made additional IPs and added it to the system, and entered the same IPs in Jmeter using CSV dataset, and Debug Postproccessor shows that the request is being sent with the correct IPs. I am doing this over wifi, so hopefully that isn't the issue.
Any help is appreciated.
System config
OS: Windows 10 64 bit
Ram: 16gb
Jmeter Version 5.4.3
It may easily happen if you're behind NAT and the server is in the Internet, in that case no matter what is your local IP address(es), the server will "see" only the address of your NAT gateway, you can check yourself using websites like https://www.whatismyip.com/
The trick with local IP addresses (or aliases) will succeed only in case of local intranet, when it comes to Internet - you will need to have as many global static IP addresses as many users you're trying to simulate.
One of the possible solutions is kicking off virtual machines in AWS or Azure or similar service or asking your ISP to provide you a pool of IP addresses you could use (normally you will need to pay for this) and go for distributed testing so each JMeter slave would have its own IP address (or several) to bind.
How does JMeter determine what subnet it is on ?? I don't see a subnetMask property in the jmeter property file.
My client is on x.y.76.54, my server is on x.y.77.75. The subnet mask is 255.255.254.0
Technically, these two IPs are on the same subnet. I am seeing a "connection refused" response from the Server. Firewalls are off. Should JMeter be able to handle the ip's as provided above ?
JMeter relies on your operating system network settings, given both hosts are able to "see" each other - JMeter will be able to do this as well.
Your setup assumes hosts from x.y.76.1 to x.y.77.254 so it's a valid use case, you can double check it using i.e. Online IP Subnet Calculator
It's hard to say what exactly is wrong without seeing how you're launching JMeter master and slave and log files for both, RMI properties like client.rmi.localport, server.rmi.localport, java.rmi.server.hostname property, etc.
It might also be the case JMeter is trying to use IPv6 addresses so it might worth trying setting java.net.preferIPv4Stack property to true
See How to Perform Distributed Testing in JMeter article for more details and if you will be still experiencing problems consider providing more information on the above points.
I have an elastic load balancer(ELB) which distributes the load to two web servers. I have two more servers for the database with active-passive configuration. I have used JMeter's test script recorder for recording browser activity. For this, I have used http://elb-address/demo.html in the Firefox address box. Unfortunately, my recording controller would only take one web server.
I want to re-run this with multiple thread groups. But, when I specify http://elb-address/demo.html it will only use one web server IP address.
How to instruct the load balancer to use multiple web servers. Please advise how to proceed.
You can use Search and Replace feature to replace all occurrences of the web-server-ip-address with elb-address in the recorded HTTP Request samplers
Also make sure to add DNS Cache Manager to your Test Plan as JMeter might cache DNS requests so you will be hitting only one node behind the load balancer instead of distributing the load across backend nodes.
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.
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.