I'm doing live jmeter monitoring using influxdB and grafana. i want to know how to stop the jmeter execution if failure rate is high when compared to success rate. I'm going to integrate this in jenkins.
I'm running the jmeter test in non GUI mode. I need to create a job which will monitor grafana and if the failure rate is high it has to kill the jmeter test which is running. Please help me with your suggestions and throw some light. Thanks in advance.
Check out AutoStop listener, using it you will be able to define the error rate threshold, if the amount of errors will exceed it - JMeter test will be stopped.
You can install Auto Stop Listener using JMeter Plugins Manager
Check out Using the JMeter AutoStop Listener - How to Do it Right article for more details if needed.
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Requirements is to find out root cause analysis using Prometheus and Grafana and also need to know which method is taking more time, CPU and Memory Utilisation also?
Can anyone pls help me
Integrate Prometheus client library into your app
Configure Grafana dashboard to visualize the metrics you want to monitor from your app
Additionally you can integrate JMeter with Prometheus Listener for JMeter plugin (can be installed using JMeter Plugins Manager)
Come up with a test plan which simulates a real life usage of your application
Run a stress test (start with 1 user and gradually increase the load until response time starts exceeding acceptable threshold or errors start occurring)
Inspect Grafana dashboard to see what is the reason of the application being slow, i.e. trace down the "slow" request to the underlying function. Additionally you can use a profiler tool which can provide a better picture
I'm monitoring the connect time and latency to connect from jmeter machine while running in GUI mode and that is in within acceptable limit.
Should we strictly follow non GUI mode even though I can able to perform load test with GUI mode?
I'm targeting 250 TPS and able to achieve that ..I have increased my memory and monitoring CPU and memory of load generator is below 60%.
Should I go for non GUI mode ?
The main limitation is that each event in the queue is being handled by a single event dispatch thread which will act as the bottleneck on your JMeter side.
My expectation is that your "250 TPS" look like:
while it should look like:
So check how does your load pattern look like using i.e. Transactions per Second listener (installable via JMeter Plugins Manager)
Also check how does your JVM look like especially when it comes to garbage collection, it can be done via i.e. JVisualVM, most probably you will see the same "chainsaw" pattern
You don't need to follow JMeter best practices, but
you may encounter issues to achieve specifc goals (as TPS)
your machine can't execute GUI or have low resources
you execute JMeter using a script or build tool as Jenkins
Also it's better to be familiar with JMeter CLI (non GUI) and its report capabilities
JMeter supports dashboard report generation to get graphs and statistics from a test plan.
Also it will be needed for using distributed testing
consider running multiple CLI JMeter instances on multiple machines using distributed mode (or not)
CLI also useful for Parameterising tests
The "loops" property can then be defined on the JMeter command-line:
jmeter … -Jloops=12
I have a very simple test plan in JMeter. There is just one thread group with one get request. ( I created this to isolate an issue which I faced in another real world test plan)
I was trying to increase the load and analyse the result.
While reaching a point, say 5000 users, JMeter does not stop.
I was unable to manually stop or shutdown. While trying to do so, the following message is displayed. But there is no response after that even though I waited.
It says you can see the active number of threads in the upper right hand side, but I can see that there are no active threads.
If I go to task manager to end the task, the same pop up message is displayed in JMeter and hence I am not able to end the task.
Please can someone advise on why I am getting this message when I could not see active threads in JMeter UI.
You're violating one of the most important JMeter best practices: GUI mode is only for tests development and/or debugging
If you want to execute your load test with 5000 virtual users you should be running JMeter in command-line non-GUI mode like:
jmeter -n -t /path/to/your/test.jmx -l /path/to/result.jtl
Once your test finishes you can open the result.jtl file with the Listener of your choice or generate HTML Reporting Dashboard from it
I'm running Jmeter load test from command prompt for about one hour and test is not ending at one hour. It is taking more time that one hour.
I'm getting errors in Jmeter logs for failed transactions:
Non HTTP response code: java.net.SocketException
Non HTTP response message: Unexpected end of file from server
Please advise. Is it because of some threads is hanging and how to rectify it.
Thank you
Most probably you didn't set Connect and Read Timeout in Http Request default.
So if you server hangs, JMeter will wait infinitely for the response.
Beside ensure you set correct values in your scheduler.
If issue persists, please give more details with screenshot.
By default JMeter "asks" threads to stop and waits for their graceful shutdown. If threads cannot be stopped in a timely fashion you have the following options:
Implement a "hard stop", i.e. instead of "asking" threads to stop you need to "tell" them to stop. It can be done using i.e. Test Action sampler with Stop now action. (remember that in this case JMeter won't wait for graceful shutdown and you will get extra errors connected with abnormal threads termination)
The fact that JMeter threads are stuck may indicate problem with your application so I would recommend checking baseline health metrics on the application under test side using i.e. JMeter PerfMon Plugin. If there is enough headroom but it still works slowly or doesn't work at all it might indicate a bottleneck in your application code or infrastructure.
Also make sure you are following JMeter Best Practices and make sure your JMeter load generator(s) have enough CPU, RAM, etc. as in some cases JMeter can report "false negative" results due to lack of hardware resources.
I am using JMeter for load testing. I have simulate 1500 users with loop count 1. But JMeter stops sending request after 1388 users. I wait for 3 hour but user didn't get increase.
also i am able to access the site under test from another system when JMeter stops sending request, it means server is not under load.
First of all, run JMeter in non-GUI mode as
jmeter -n -t /path/to/your/testplan.jmx -l /path/to/testresults.jtl
Second: disable all the listeners during test run. After test execution completion you will be able to open testresults.jtl file with the listener of your choice and perform analysis
Third: follow recommendations from JMeter Performance and Tuning Tips fuide
Finally: if you will be still experiencing problems it means that you went above your load generator machine hardware limits and need an another machine(s) to run JMeter in distributed mode.