websocket-sample | Websocket library

I've a website using Asp.NET Core SignalR to dynamically load data from the server.

I use JMeter to do functional tests on this page. I use the WebSocket sampler plugin in version 1.2.1 to test the SignalR functionality.

Following this blazemeter tutorial on how to use JMeter with the WebSocket sampler plugin I get always an error when trying to close the SignalR connection.

My JMeter sampler setup looks like:

1. WebSocket Open Connection
2. WebSocket request-response Sampler
3. WebSocket Single Read Sampler
4. WebSocket Close

For closing the connection I use the WebSocket sampler called WebSocket Close. This sampler allows to provide a Close status.

I've tried to provide different Close status codes. But non of the provided codes actually got confirmed and always the error message was returned:

Response code: WebSocket error: unsuccesful close.

Response message: WebSocket error: received not a close frame, but Text frame with text ...

How can I properly close this connection in JMeter?

Update

I've figured out that it depends on how many samplers I use. If I use a write sampler before the read sampler the close seems to work. Like:

1. WebSocket Open Connection
2. WebSocket request-response Sampler
3. WebSocket Single Read Sampler
4. WebSocket Single Write Sampler
5. WebSocket Close

But if I want to have more then one read sampler it doesn't work. Any idea how I properly use multiple read sampler?

Update 2

I've re-read the Plugins documentation and also checked the sample JMeter files here. Unfortunately I haven't found a bigger sample with multiple Read Samplers so far.

We have built a publish/subscribe model into our application via WebSockets so users can receive "dynamic updates" when data changes. I'm now looking to load test this using JMeter.

Is there a way to configure a JMeter test to react to receipt of a WebSocket "published" message and then run further samplers i.e. make further web requests?

I have looked at plugin samples, but they appear focused on request/reply model (e.g. https://bitbucket.org/pjtr/jmeter-websocket-samplers) rather than publish/subscribe.

Edit:

I have progressed a solution for this using the WebSocketSampler - an Example JMX file can be found on BitBucket which uses STOMP over WebSockets and includes Connect, Subscribe, Handle Publish Message and Initiate JMeter Samplers from that.

The WebSocket stream in JMeter is executed only for a frame, I am not able to load test continuous stream using the jars available @ https://bitbucket.org/pjtr/jmeter-websocket-samplers

Jmeter WebSocket jmx When I try triggering the WebSocket request via terminal, it streams output/logs. But in case of JMeter the Websocket runs only for a frame.

WSS request with Port 443:

Thanks for answering the query. Please can you clear some of my doubts: I am trying to load test a scenario where the client is continuously listening to WebSocket.

1 Using a jar file I am able to continuously stream the data when I hit the java jar in the terminal. I can see the data flowing

2. Now I try to replicate the scenario in JMeter, the sampler acts like a request/response, where the connection is lost after the response.

3. Now if I set a loop in JMeter, it does not satisfy the purpose of streaming. It will act as multiple requests sent to the same channel.

Also in the attached image link, the checkbox for Streaming Connection is checked, but it acts like request/response.

Is looping the only option for WebSocket streaming?

Thread Name: Thread Group 1-1 Sample Start: 2017-04-27 17:21:40 IST Load time: 1383 Connect Time: 0 Latency: 0 Size in bytes: 1065 Sent bytes:0 Headers size in bytes: 0 Body size in bytes: 1065 Sample Count: 1 Error Count: 0 Data type ("text"|"bin"|""): Response code: 200 Response message:

[Execution Flow] - Opening new connection - Using response message pattern "" - Using disconnect pattern "" - Waiting for the server connection for 60000 MILLISECONDS - WebSocket conection has been opened - Connection established - Waiting for messages for 60000 MILLISECONDS - Received frame #1 (15 bytes); matched response pattern - Received message #2 (15 bytes); matched response pattern - Leaving streaming connection open

[Variables] - Message count: 2

[Problems]

Response headers:

SampleResult fields: ContentType: DataEncoding: UTF-8

I have implemented a relay server on top of WebSocket. Sender will send many small binary messages to the server and they are then relayed to all the connected clients.

What I am interested in is the time between sender send the message and the reader receives the message. Right now I have already setup the Test Plan with a thread group of 25 receivers and another group of 1 sender and they can receive and send the message respectively.

The aggregate report is considering the send message and read message as two different labels. How should I configure the Test Plan to record my desired time?

p.s. I am using this jmeter WebSocket sampler plugin
https://bitbucket.org/pjtr/jmeter-websocket-samplers

Thanks in advance.