Operations | Monitoring | ITSM | DevOps | Cloud

Serverless computing helps teams move faster by removing the need to manage servers. Code runs only when needed, scaling up or down automatically. For DevOps engineers, this means quicker deployments and less infrastructure work. But serverless also brings new challenges. Functions run for short periods, making it hard to track errors, performance, and costs.

At Sentry, we build in public and we move fast. But moving fast means we don’t always get everything right on the first try. That’s where feedback comes in: it helps us validate what’s working, spot what’s missing, and catch issues we wouldn’t always see through error tracking alone.

In the rapidly evolving landscape of IT operations, businesses face the constant challenge of staying ahead of emerging technologies and shifting market demands. Implementing new systems or solutions is not just about the initial setup. It is about ensuring long-term success, reducing risk, and unlocking sustained value for the organization. That is exactly what SL360, our comprehensive customer success framework, was designed to deliver.

Email downtime or email delays can significantly disrupt business operations, making proactive monitoring essential to avoid problems. In today’s hybrid work environments, email remains a critical communication channel for customer interactions, internal collaboration, and workflow approvals. Even brief outages or delays in email delivery can lead to missed opportunities, poor customer experience, SLA (Service Level Agreement) breaches and reputational damage.

SSL certificates secure the digital backbone of businesses. They encrypt data, protect customer trust, and ensure compliance with strict regulations. Yet many companies still face the cost of ignoring expired SSL certificates every year. When a certificate expires, the consequences hit hard: websites go offline, users see security warnings, and revenues drop. Let's break down the risks, costs, and ways to prevent expired SSL certificates from damaging your business.

In my previous post I made a bold, sweeping statement that APM is not - in the most specific sense - a subset of observability. Still standing by it I stand by that because words matter and - like many "monitoring engineers" (IT folks who make monitoring and observability their specialty) - I, too, bear scars from the flame-wars on Twitter back in the 2020's where we fought internecine battles over the proper definition of (and number of pillars in) “observability”.

Debugging errors in distributed systems can be a challenging task, as it involves tracing the flow of operations across numerous microservices. This complexity often leads to difficulties in pinpointing the root cause of performance issues or errors. OpenTelemetry provides instrumentation libraries in most programming languages for tracing.

In 2025, microservices are everywhere and Kubernetes is the de facto standard for operating cloud native applications. But not all apps are built in microservices architectures. For most enterprises, hybrid environments are the reality, with their business run on a mix of three-tier and cloud native applications.