Exiting / aborting a JMeter Sampler request/ User session (on purpose) before it receives the response - jmeter

Currently there are inactive, long running queries in the DB due to the user exiting the application abruptly before receiving the response.
I would like to recreate this using JMeter by killing the sessions or aborting the thread before the sampler request receives a response

You don't have to wait for response when using HTTP Request,
You can put minimum value, as 1, in Response Timeout parameter:
Response Timeout. Number of milliseconds to wait for a response. Note that this applies to each wait for a response. If the server response is sent in several chunks, the overall elapsed time may be longer than the timeout.

Related

Apache JMeter not getting response

I'm testing several functions and in some I'm having problems increasing the number of requests. For example, I was testing the factors function with 32 requests in 30 seconds and I had no problem, but when increasing to 64 requests I had the following problem:
open requests
Requests open normally
completed requests
but after they finish their execution i don't get any response in jmeter. It seems that the connection was lost and it is waiting for the timeout .
I'm testing a weak VM, only 1 vCPU and 2Gb.
If you're using HTTP Request sampler by default it will wait for response "forever" (unless the TCP timeout is set somewhere in underlying JDK or OS)
So if your application gets overloaded and fails to respond JMeter will wait for the response infinitely, in order to avoid the situation with "hanging" test consider setting reasonable connect and response timeouts, the setting live under "Advanced" tab of the HTTP Request sampler (or HTTP Request Defaults if you have more than one HTTP Request sampler in your Test Plan)

JMeter - How to modify/increase response timeout

When we send a file and after processing if response time is more than 60 seconds the request is timing out. Is there any way to increase it?
We have tried following steps to resolve it.
For HTTP request under advanced tab we have tried setting connect and response timeout to 5 minutes.
Also updated http client timeout in jmeter.properties as well.
Used Sample Timeout with value 5 minutes
For JMeter the relevant setting lives under "Advanced" tab of the HTTP Request sampler (or even better use HTTP Request Defaults, this way the setting will apply to all HTTP Request sampler in the HTTP Request Defaults scope)
The setting is in milliseconds so for 5 minutes it will be 300000 milliseconds
However even by default leaving empty values means no timeout so it doesn't make sense to "increase" the value, normally people use these settings to decrease the time JMeter waits for response so it wouldn't wait too long or even forever.
If you're getting timeout after 60 seconds it means that:
your system under test has its own timeout and it breaks the connection from its end after 60 seconds. Check your application or application server or load balancer or reverse proxy or whatever configuration and see how you can increase the response timeout there. Here is the setting for Apache web server, look for the documentation specific for your backend for more details.
your operating system is "cutting" the connection due to its own timeout, here is an example for Linux
the connection is being broken by an interim router or switch or firewall

How to wait until I get a specific response in jmeter?

I'm doing load testing using JMeter for my gaming application.
First I log in my application by HTTP request and then enter into the game(it is a WebSocket connection).
I successfully hit Websocket and able to send the request and receive a response.
Iam using WebSocket Samplers by Peter Doornbosch.WebSocket request-response Sampler captures one response at a time.
But in my application for a single request five JSON response is returned by the server. I need to capture those five responses. so I used WebSocket read sampler.
If I hit that WebSocket by increasing thread count most of the test cases are failed because of timer issue.
Jmeter sends the next request without waiting for previous reponse.
In my application, if one game ends, then the response is sent by the server. After receiving that only next game request must hit.
But the next game request hit the server before the current game ends. can please help me to sort this issue????
Put your WebSocket read sampler under the While Controller and specify the condition for exiting the while loop (it might be something coming from the JSON Extractor)
Jmeter sends the next request without waiting for previous reponse.
this statement is not true, each thread (virtual user) waits for the current sampler to finish before starting the next sampler

How to send http request without waiting for response from server

We are planning to do load testing of our server and we need to generate heavy load from Jmeter tool. But as per i know, jmeter waits for the response to create another request thread. Is there a way to create http request without waiting for response from the server using jmeter? if not, what are the available work around to generate heavy load keeping number of threads fixed?
Define a very small timeout in the HTTP Request sampler (or even better in HTTP Request Defaults so the setting would be applied to all HTTP Request samplers) like 1 millisecond so JMeter will close the connection right after sending the request
(Optional) To avoid JMeter marking requests as failed add Response Assertion and tick Ignore Status box
You can set in HTTP Request in the Advanced tab Timeout of Connect and Response with 1 ms
Connect Timeout Connection Timeout. Number of milliseconds to wait for a connection to open.
Response Timeout Response Timeout. Number of milliseconds to wait for a response. Note that this applies to each wait for a response.
If you need to return always success you can add with JSR223 PostProcessor and use prev variable:
prev.setSuccessful(true)

Request timeout issue with the post rest API request

My application environment is Tomcat 7.0, JDK 1.7. I am using Jersey for the REST API. One of our post type REST API request takes the processing more than 3 minutes, and it is just approx time, it can be more than 3 minutes. Then we send the response back to the client when our request processing is completed. but here request processing take 3 minutes so I got the request time out at the client side , and I do not get any response from the server , as I expected to success response
Request processing at server is like below:
Start the request
Insert details to db table [this process taking time in seconds]
Copying files to remote computer server [this process taking 3 minutes]
Update/active the files [this process taking time in seconds]
Send response to the client
End the request processing
All the above process must be in transaction , so we can not remove any of the above process,
We had already improve the best performance for Step 2 of the process , and it only happens, when we request with the more than 1 gb size file.
As of now for the temporary solution we had increase the timeout value which is configured in the Apache server.
Now I am looking for the solution of my issue, with any of the following approach:
Suggest me any development or implementation strategies which can resolve the my issue and it should be expected as described me?
How do I tackle the request time out issue?
Looking for the solution which notify the client from the server side , when the response is done?
Looking for the solution which can not close the connection between client and the server with the Jersey REST API implementation?
Thanks & regards
Yatin Baraiya
as i have think to solve the my issue with the following approach.
Process implementation step to resolve the my issue
1.At First Sending request to the server ==========> Server immediately send the response to the client with generating some Id and start the long running process by other thread in the same process.
2.At the client side first it receive the first request response and wait for some seconds and then again send other request to the server for the long running process checking status====> Server get the second request and response to the client regarding the the status of the long running response status with sending in-progress or done
3.If client get the response :in-progress
4.Then client wait for some seconds and again send the request for status check ===> server Sending response to done
5.If client get the response :Done
then it start to take the other request from its queue . [ it will start the process for the next request if and only if client get the done status and generated ID]
it means here we manage the transaction from the client side with sending the multiple request to server and confirm the process is completed successfully or not , then we start to process next action.
With the above approach we got the transaction process ,Let me know is it my approach to solve the said issue , is it enough or any changes is required in this solution?

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