Software performance guru Martin Thompson (@mjpt777) gave an illuminating talk on event-sourced architectures, and why event-driven, state-machine designs are the way forward for complex, multi-path software systems (“Event Sourced Architectures and what we have forgotten about High-Availability”, [slides: 700KB PDF]).
See all QConLondon 2012 blog posts…
Note: This article first appeared in CVu Issue 17.5 (October 2005). CVu is the journal of ACCU, an organisation in the UK dedicated to excellence in software programming. Some links may not work.
This article demonstrates a technique for tracking exceptions across process boundaries in distributed systems using Globally Unique Identifiers (GUIDs); data from log files, bug reports, and on-screen error messages can then be correlated, allowing specific errors to be pinpointed.
Particular attention is paid to XML Web Services, with additional reference to DCOM, CORBA, Java/RMI and .Net Remoting.
The examples are given in C# [.NET 1.1], but the technique can be applied easily to Java and other languages.
