76 lines
2.2 KiB
Plaintext
76 lines
2.2 KiB
Plaintext
This load tester is extremely useful for testing how many dormant clients can connect to etherpad lite.
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TODO:
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Emulate characters being typed into a pad
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HOW TO USE (from @mjd75) proper formatting at: https://github.com/Pita/etherpad-lite/issues/360
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Server 1:
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Installed Node.js (etc), EtherPad Lite and MySQL
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Server 2:
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Installed Xvfb and PhantomJS
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I installed Xvfb following (roughly) this guide: http://blog.martin-lyness.com/archives/installing-xvfb-on-ubuntu-9-10-karmic-koala
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#sudo apt-get install xvfb
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#sudo apt-get install xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic
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Launched two instances of Xvfb directly from the terminal:
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#Xvfb :0 -ac
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#Xvfb :1 -ac
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I installed PhantomJS following this guide: http://code.google.com/p/phantomjs/wiki/Installation
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#sudo add-apt-repository ppa:jerome-etienne/neoip
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#sudo apt-get update
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#sudo apt-get install phantomjs
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I created a small JavaScript file for PhatomJS to use to control the browser instances:
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### BEGIN JAVASCRIPT ###
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var page = new WebPage(),
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t, address;
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if (phantom.args.length === 0) {
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console.log('Usage: loader.js <some URL>');
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phantom.exit();
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} else {
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t = Date.now();
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address = phantom.args[0];
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var page = new WebPage();
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page.onResourceRequested = function (request) {
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console.log('Request ' + JSON.stringify(request, undefined, 4));
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};
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page.onResourceReceived = function (response) {
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console.log('Receive ' + JSON.stringify(response, undefined, 4));
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};
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page.open(address);
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}
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### END JAVASCRIPT ###
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And finally a launcher script that uses screen to run 400 instances of PhantomJS with the above script:
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### BEGIN SHELL SCRIPT ###
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#!/bin/bash
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# connect 200 instances to display :0
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for i in {1..200}
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do
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DISPLAY=:0 screen -d -m phantomjs loader.js http://ec2-50-17-168-xx.compute-1.amazonaws.com:9001/p/pad2 && sleep 2
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done
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# connect 200 instances to display :1
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for i in {1..200}
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do
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DISPLAY=:1 screen -d -m phantomjs loader.js http://ec2-50-17-168-xx.compute-1.amazonaws.com:9001/p/pad2 && sleep 2
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done
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### END SHELL SCRIPT ###
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