Stress testing WebSockets in Jmeter

websocket jmeter jmeter-plugins
Mehran picture Mehran · Sep 1, 2013 · Viewed 12.8k times · Source

I'm trying to stress test my WebSocket server using Jmeter's plugin (jmeter-websocket). The thing is that the plugin comes with no documentation how to work with it and thus I'm not sure if my expectations of it is supported or not.

I managed to run a sample test using the mentioned plugin and it was successfully connected to server. It also managed to communicate with server but once it was done receiving the first response it disconnected. I was hoping to configure this plugin in a way so it will maintain a persistent connection with WebSocket server for several minutes, sending and receiving a couple of messages before it is disconnected.

By stress testing I would like to see how the number of concurrent connections affect my application's behavior. Is this plugin suitable for my needs? If it is then how should I work with it?

Answer

Maciej Zaleski picture Maciej Zaleski · Jan 16, 2014

I had exactly the same problem. the plugin you have mentioned worked only for a HTTP-like request/response but I couldn't use it for a "long" connection.

Have a look at this http://github.com/maciejzaleski/JMeter

Features:

  • Supports HTTS/HTTPS (ws/wss) version of the WebSocket protocol
  • Option to ignore SSL certificate errors
  • Streaming allows for a single connection to remain open for the duration of the test
  • Response has to match predefined regular expression
  • Response timeout
  • Response message backlog (build the Sampler response from multiple server messages)
  • Connection could be closed if server sends a message matching predefined regular expression

Related questions

WebSocket plugin for Jmeter

Can someone share me a link with plugin sampler for Websocket protocol for JMeter? I tried to install from the link below: https://github.com/kawasima/mod_proxy_websocket. But not sure how to get that. I am new to …

Read More
Send message to specific client with socket.io and node.js

I'm working with socket.io and node.js and until now it seems pretty good, but I don't know how to send a message from the server to an specific client, something like this: client.send(message, receiverSessionId) But neither …

Read More
Which websocket library to use with Node.js?

Currently there is a plethora of websocket libraries for node.js, the most popular seem to be: https://github.com/Worlize/WebSocket-Node https://github.com/einaros/ws https://github.com/LearnBoost/engine.io https://github.com/learnboost/socket.io https://…

Read More