SPAN has announced that its four newest smart panel models are the first to receive UL 3141 certification. This safety standard for Power Control Systems ensures devices can manage electrical loads effectively while protecting consumer safety and device integrity. The certification supports increased home electrification by utilizing existing utility infrastructure, potentially helping homeowners avoid expensive service upgrades.
Distributed tracing is crucial for modern observability, offering richer context than logs. However, the volume of tracing data can be overwhelming. Sampling addresses this by selectively retaining data, with two main approaches: head sampling (deciding upfront) and tail sampling (deciding after collecting all spans). Head sampling is simpler but can miss localized issues. Tail sampling, while more accurate, is complex to implement at scale, requiring buffering, stateful processing, and potentially impacting system resilience. Furthermore, sampling inherently affects the accuracy of RED metrics (request rate, error rate, duration), necessitating metric materialization *before* sampling.
