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Recently a client asked Altentee to generate some load against their subscription to Google Analytics (GA). Calls to GA and other 3rd party monitoring tools are typically requests we blacklist or consider out of scope. So it was unusual to think the other way around, how would you performance test GA? The solution as it turns [...] A common requirement when load testing is to populate subsequent requests with dynamic data from previous requests. If you’re thinking about using a database to store static test data, such as usernames, paswords, credit card numbers etc then read on to find out how to extract this data at runtime and populate JMeter variables. Version control is not something you often associate with performance testing scripts. The reasons generally vary. A significant one is the lack of any version control support in commercial toolsets like LoadRunner. Another reason is the perceived short-term shelf life of test scripts. You tend to write them once and throw them away right? If you [...] A colleague recently asked me if it was possible to test SAP portals using JMeter. The short answer is yes. Some people get confused with the additional protocols that LoadRunner sports for SAP, particularly the SAP GUI. But if your SAP portal uses plain old HTTP (or HTTPS) then JMeter can do the job. There are a [...] If you’re testing HTTPS with JMeter 2.3.2 and a current version of Java greater than 1.5 e.g. java -version Then you are likely to encounter this error when using the standard HTTP Request sampler: Response code: Non HTTP response code: java.net.SocketException This is a relatively new example of how to use JMeter with WebSphere MQ. This approach is a clever way of inserting messages into MQ using a JMS sampler (point to point) with a JNDI binding within MQ. I had not heard of this approach before and am sure it will be useful in future, provided [...] This is most likely because the JMeter recording proxy does not support the https protocol. If it’s a screen you can live without, you can just stop/start the proxy recorder around that page (I use the Firefox plugin called FoxyProxy to quickly switch between different proxy configurations). However, if it is vital to your script (for [...] Another post in this current theme of JMeter tips and tricks… You will hear LoadRunner consultants preaching to the converted about the requirement to correlate data accurately. What they’re referring to, is making sure that dynamic data received by the client from the server (typically in a response body, header or url), which changes from [...] This plugin has been around for a while and it’s definitely worth including in your JMeter library if you want to go for a glossy finish! The StatAggVisualizer will transform your graphs If you roll-up your transactions into separate transaction controllers as I demonstrated in a previous post, you will get useful [...] I’ve been working with JMeter of late and after speaking with some people at conferences and the like, I thought it would be good to share what I’ve learned along the way in building, structuring and executing JMeter test plans. One of the first things I like to do when performance testing is establish in reasonable [...] |
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