I am creating a script through Blazemeter (which storing some data in DB) and running through JMeter. Script is running fine but data is not stored in DB. What I am missing?
The chance of replaying recorded script is minimal as modern web applications widely use dynamic parameters for security reasons or client-side state tracking
Make sure to add HTTP Cookie Manager to your Test Plan
Make sure to perform correlation of any dynamic parameters
With regards to "Script is running fine" - JMeter automatically treats responses with HTTP Status Codes below 400 as successful, so "green" result doesn't necessarily mean that your script is doing what it is supposed to be doing. Try inspecting responses using View Results Tree listener, most probably you're getting stuck at login page. Going forward you can consider adding Response Assertions in order to perform extra checks against the responses.
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I am using jmeter to load test a website. I have tested from 1 to 400 users. however while testing for above 500 users/threads, I am getting 401/unauthorized error for few users. Hope you'll help me to find out a solution to this problem.
I can think of 3 possible reasons:
There is a parameterization problem with your test, i.e. it sends wrong credentials, you can use i.e. Simple Data Writer configured to save requests and response data for failing requests and inspect it using View Results Tree listener.
JMeter gets overloaded and cannot properly perform correlation. In addition to point 1 check whether you're following JMeter Best Practices and ensure that JMeter has enough headroom to operate in terms of CPU, RAM, etc. using i.e. JMeter PerfMon Plugin
Your application gets overloaded and cannot handle 500+ users, check your application logs, resources usage, output of APM tools, etc.
I recorded login and logoff requests using blazemeter. After the record nearly 10 request has been created by blazemeter, which some of them includes .../signalr/.../connectionToken labels.
when i run the test these labels return an error like and .
the test included 10 users. The users have different username and passwords. The other labels (another from these signalr labels) return true.
So, i wonder now if i can disable these pages and not include in the tests? or
any solution for this issue?
if i can disable these pages and not include in the tests
theoretically yes, you can ask around whether SignalR is in scope for performance testing and if not you could disable those, however I believe well-behaved JMeter test should act exactly like a real browser so if the real browser sends these requests to .../signalr/.../connectionToken - JMeter should also send them
or any solution for this issue
I don't think you can record and successfully replay anything in Web 2.0 times, the majority of web applications heavily use dynamic tokens for various reasons (saving client state, security, tracking, etc.). When you record the request you get a hard-coded value which can expire or invalidate by other means, you need to identify all the dynamic values like this SignalR token and perform correlation: the process of dynamic values extraction from the previous responses using suitable JMeter Post-Processors and re-using them in next requests in form of JMeter Variables or Functions
If you record the same user scenario second time and compare two resulting test plans all the request parameters which change will require correlation. There is also an alternative recording option which is capable of exporting recorded requests in "SmartJMX" mode with automatic detection and correlation of dynamic parameters, see How to Cut Your JMeter Scripting Time by 80% for more details.
Jmeter log replay taking more time .. can we able to use access log sampler in multiple thread? if so how to share the log files to all the threads?
Please help.
You can convert your access log into a CSV file with a script and use CSV Data Set Config in conjunction with the HTTP Request samplers - this way you will get it replayed with the multiple threads. See Stop Making Assumptions! Learn How to Replay Your Production Traffic With JMeter article to get the idea in more details and see the example implementation.
However be aware that this way most likely you won't be able to replay complex end-to-end scenarios, only simple HTTP GET requests which are not authenticated can be replayed this way. For quick-and-dirty test plan it might be enough, however it is much better to come up with modular test plan, reusable components, full control of workload, etc. so I would rather recommend building a web test plan from scratch.
I created a jmeter script for an MSTR application. The server on which this application is hosted was shut down by the Development team but my script is still running successfully.
Why is the script not giving errors??
In case of HTTP Requests JMeter automatically treats all HTTP Status Codes which are less than 400 as successful.
You can consider adding i.e. Response Assertion to ensure that the test is doing what it needs to do and, expected information is present at the page, not expected information is not present, etc. You can also set maximum response time via Duration Assertion, check response for being HTML/XHTML/XML-compliant via HTML Assertion, etc.
See How to Use JMeter Assertions in Three Easy Steps guide for comprehensive information on conditionally failing JMeter samplers using assertions
You are getting an impression that the script is running successfully based on the response code you are receiving. For correctness of the tests, it is advised that you add response assertions to your scripts and add certain text as a pattern which is expected as result of successful response for respective request.
In this case you also need to make sure that you don't add response assertion for each and every request as it can make the JMeter script heavy to execute and JMeter may run out of memory if appropriate memory is not allocated.
Add a response assertion and re-run the test and make practice to use it to validate the correctness of your script.
I'm working on what (should be) a simple Jmeter script whose goal is to load a pretty large amount of data into a software system for testing.
Jmeter records a ton of session-specific information that of course, can't really be "played back" in order for this to work. All the target application's url-construction is handled behind the scenes, and sent on the responses. Is there a way to simply "ignore" all this session data and more or less script JMeter as I would if I was running say, a QTP/Selenium test?
To try and clarify, we have buttons that post session-specific urls. I'd like to be able to just "click the buttons" and let things flow naturally without needing to handle any of the session specifics.
Sorry for the "click the button" metaphor, I know the tool doesn't interact with the GUI, but it's the best thing I can come up with.
Session data is not avoidable without back-end changes, such as disabling cookies/shutting off security tokens. Neither of which was an option here.
I handled the problem by capturing all the necessary session tokens and parameterizing my scripts properly.
JMeter doesn't parse HTML and execute Javascript for performance reasons (it takes a lot of time). Instead JMeter works at HTTP protocol level. Thus it uses a lot less system resources than Selenium tests.
You have to structure those HTTP requests yourself and you have to handle session specifics. Maybe, HTTP Proxy Server will make your life easier.