In Jmeter while using websocket sampler I am getting error like
Cannot connect to the remote server
Waiting for messages for 20000 MILLISECONDS
WebSocket session wasn't started (...that's odd)
WebSocket client closed by the client
Also request and response are blank in View results tree. Kindly help me to sort out this issue
Related
How to use existing websocket connection to another websocket request in jmeter?
When I tried to use existing connect then as result it show me an error "Sampler configured for using existing connection, but there is no connection" . Please refer attached screenshot.
enter image description here
enter image description here
It looks like you're using 2 different WebSocket Samplers implementations:
JMeter-WebSocketSampler
and JMeter WebSocket Samplers
Your WebSocket Single Write Sampler:
Doesn't know anything about the connection established by the WebSocket Sampler
The WebSocket Sampler closes the connection after receiving the response
So if you want to continue with the WebSocket Single Write Sampler you need to:
Use WebSocket Open Connection sampler to establish the connection:
In the WebSocket Single Write Sampler tick use existing connection box
More information: JMeter WebSocket Samplers - A Practical Guide
If you want to continue with the WebSocket Sampler - tick Streaming connection box:
and remove the WebSocket Single Write Sampler and friends from the Test Plan
I just have a load test in JMeter, in the test, the client will send several requests in few seconds. But I find a problem when the client makes a new request, the JMeter will close the former connection and create a new connection, I just want to reuse the former connection to send a request to the WebSocket server.enter image description here
Just tick use existing connection box in your WebSocket Samplers and the connection established by the WebSocket Open Connection sampler will be re-used
I believe the connection doesn't survive Thread Group iterations (it's basically re-established when Open Connection sampler is executed 2nd time, if you need to repeat the request more than once - either go for Loop Controller or put the Open Connection sampler under the Once Only Controller
More information: JMeter WebSocket Samplers - A Practical Guide
I am using a plugin (WebSocket Samplers by Peter Doornbosch) to establish the WebSocket connection in JMeter and trying to send the request message over it but receiving below error in logs
ERROR - eu.luminis.jmeter.wssampler.RequestResponseWebSocketSampler: Unexpected frame type received in sampler 'WebSocket request-response Sampler': Close frame with status code null and close reason 'null'
My test plan consists of "WebSocket Open Connection", "Web-socket request-response sampler" and "web-socket ping/pong frame filter". And I feel there is no issue in establishing the connection but something is wrong while sending the request or receiving a response.
Also, tried checking the logs from the server but didn't find any requests which were sent using JMeter.
Implemented another available plugin too in Jmeter to test the WebSocket but seeing similar behavior. Any help would be highly appreciated.
It looks like you're using the wrong sampler type, looking into the error you're getting it makes more sense to use single-write sampler which is designed for sending one (text or binary) WebSocket frame.
You might want to use a sniffer tool like Fiddler or Wireshark to capture the traffic between your browser (or application) and the backend and see what types of frames are going, which direction, is single connection re-used or each time new one is established, etc.
You may also find the following links useful:
Example scripts collection
JMeter WebSocket Samplers - A Practical Guide
The problem is that your server is actively closing the connection. Usually, this is caused by the client sending a request that the server does not understand. In your case, it's very likely that the request you are sending in the request-response sampler is not accepted by the server. As Dmitri suggests, the best way to find out how a "normal" client communicates with the server is to capture a session with WireShark and model your testplan accordingly.
Hth.
I have a Jersey client and server. And I see this behavior:
In client I post a request
In the server I see the request and start to handle it
Then out of a sudden I receive an empty response with status 504 to the client while the server still processes the request
I've set the client properties to have read and connect timeouts much higher than the time I get the empty response
After further analysis - the gateway timeout was due to a Load-Balancer between the client and the server.
Reconfiguring the timeout in the Load-Balancer solved the issue
I installed websocket stomp sampler plugin to Jmeter, and new a stomp sampler to test the server. but when I filled the connect message as the message
I got from the developer:
CONNECT
accept-version:1.1,1.0
heart-beat:10000,10000
host: qa.so.aws.mxj.mx
^#
The Jmeter gave 400 error and said
"- Connect or Subscribe Paylod Message are empty"
When I saw the request from Jmeter, it said:
["CONNECT\n\n\u0000"]
I don't know how to let Jmeter to get the correct connect message, please help me with this problem.
Try by giving both Connect Message and subscribe message.
Example:
Connect Message
CONNECT\naccept-version:1.1\nheart-beat:0,0
Subscribe Message
SUBSCRIBE\nid:sub-0\ndestination:/topic/queue
Select both the check boxes Streaming connection and stomp protocol along with other details (host, port, protocol, path, connection and response timeout).