debug
- News
- Last Updated: June 03, 2024
- Tom Crayford
At Heroku, we're always working towards increased operational stability with the services we offer. As we recently launched the beta of Apache Kafka on Heroku , we've been running a number of clusters on behalf of our beta customers.
Over the course of the beta, we have thoroughly exercised Kafka through a wide range of cases, which is an important part of bringing a fast-moving open-source project to market as a managed service. This breadth of exposure led us to the discovery of a memory leak in Kafka, having a bit of an adventure debugging it, and then…
- Engineering
- Last Updated: May 14, 2024
- Richard Schneeman
Debugging a large codebase is hard. Ruby makes debugging easier by exposing method metadata and caller stack inside Ruby's own process. Recently in Ruby 2.2.0 this meta inspection got another useful feature by exposing super method metadata . In this post we will look at how this information can be used to debug and why it needed to be added.
One of the first talks I ever wrote was "Dissecting Ruby With Ruby" all about inspecting and debugging Ruby processes using nothing but Ruby code. If you've never heard of the Method method it's worth a watch.
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