The subject of this post is ‘Is JMeter, a good alternative to LoadRunner’.
The short answer is yes absolutely, the longer answer is of course a lot more complex and interesting and worthy of discussion.
We will not discuss the more technical aspects of the tools as there are many, many posts talk about this already and it’s not worth repeating the same thing again.
Let’s look at it from a usability in the real world perspective.
If you're here, it's probably because you have never really understood the differences between those Spring annotations:
@Service annotation for?@Component and @Service?@PostConstruct and @PreDestroy?The bad news is Your search is over! It's finally time to get a better understanding of when and how to use those annotations.
The section above describe each annotation and the best way to use them to fully leverage the power of Spring Framework.
All those annotations are designed to:
But, how do they differ from each other? Let's dive into Spring's internals to find out!
Disasters can happen. We experienced data loss on our Elasticsearch cluster a few weeks ago after a failed upgrade. That's why data redundancy isn't enough: even when you data is replicated on multiple nodes, your data isn't safe!
Backuping your elasticsearch cluster is another layer of security in case things go wrong:
1+ nodes, but what if several nodes fail simultaneously? It's highly improbable, that's true.This tutorial is going to explain how we use a shared Network File System connected to all our Elasticsearch nodes to save incremental snapshots of the database every night. Let's see how we can leverage NFS to store Elasticsearch snapshots.
Today we have a look at the added value you get by using a combination of load testing and APM. Our tool of choice at OctoPerf is Instana, because we share a lot of common values. To put it short we both have a huge focus on ease of use and docker oriented platforms. I think it makes this collaboration even more relevant for our users.
Anyway, as you probably know OctoPerf is oriented toward running realistic tests as easily as possible. And Instana will get you live insight about your entire platform allowing you to instantly understand the consequences of your load test. This blog post is a collaboration with folks at Instana and you can find the second part whith a detailed analysis of the test on their blog.
You may ask yourself:
Good News! We're going to show you the JMeter If Controller by introducing you to conditional statements, advanced conditions and performance considerations.
The If Controller works great when you need to execute some elements of the Thread Group based on a given state. Let me give you meaningful examples:
the shopping cart is empty, then execute Add a New Product to Cart,Account balance is below Zero, then Issue a wire transfer to rebalance the Account.Depending on a given condition, then a given action is taken. That's it!