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
Related
The websocket in Postman is immediately connected below, producing a room and a socket.
wss:/service.com/?token=POTE117771
However, the outcome of the websocket added plugins in JMeter is 0"sid":"UME84d0DoF9N3tDCAABQ","upgrades":[],"pingInterval":25000,"pingTimeout":20000,"maxPayload":1000000.
However, no rooms or scokets are made.
It should be connected for jmeter to send requests. kindly assist me
We are not telepathic enough to "assist" you without seeing your Postman and JMeter configuration, which exact plugin you're using:
JMeter-WebSocketSampler by Maciej Zaleski
or JMeter WebSocket Samplers by Peter Doornbosch
But one thing is obvious: if you send the same request (or in case of WebSockets it might be a sequence of requests) you will get the same response so make sure that JMeter is sending the same request as Postman does (apart from dynamic parts which need to be correlated) the request from JMeter will "produce room and socket" (whatever it is)
I am initiating the request from Jmeter using HTTP Request Sampler. In the body data i am sending the request and the application server sends back two different responses for the same request. After receiving the first response, Jmeter will close the request and in my scenario i need to capture the second response also. Kindy share your ideas on this.
Regards,
Chandru
Which protocol? In case of HTTP this is exactly how it supposed to work: one request -> one response, you can keep the underlying TCP connection alive so JMeter would re-use the connection for sending the next request, but HTTP Request sampler won't expect any additional responses.
In case of Server Side Events you will need to do some scripting in order to handle the situation like it's described in How to Load Test SSE Services with JMeter article
In case of WebSockets take a look at Read continuation frames.jmx example test plan
i send 10 requests to the server which was recorded by blazemeter chrome plugin.
some of them are signalr requests that have connection token values created runtime.
signalr requests are
signalr/negotiate?..
signalr/connect?
signalr/start?
signalr/abort?
if i dont use regular expression extractor for correlation, the signalr request has wrong responses and test will fail.
if i use correlation, some interesting results are present.
if i use it only in signalr/start it will pass, the other signalr's will fail.
if i add the connectionParameter to the signalr/connect... request. it will do nothing and test will not continue and not finished. So, i wonder if Jmeter dont send the request or any response is received. in view result tree listener, the request is not seen in this case.
What will Jmeter do if a response is not send by server?
or any other information that i dont know related to signalr/connect.. issue?
What will Jmeter do if a response is not send by server
When it comes to HTTP Request samplers JMeter will wait for response for the time defined in the "Timeouts" section of the aforementioned HTTP Request sampler
Blank values mean "no timeout" so JMeter will wait either forever or until the socket timeout defined in the underlying JVM or OS is exceeded.
With regards to SignalR most probably you need to use WebSocket Samplers plugin, I don't think there is a way to record these requests using whatever JMeter recording solution currently available in the market so consider inspecting the traffic from your browser to the backend using either browser developer tools or a 3rd-party sniffer tool like Wireshark.
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.
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)