Kubernetes (kind) pod cannot resolve service in another namespace (DNS not working)

Summary Cross-namespace service resolution failed in a Kind Kubernetes cluster due to missing DNS configuration for cross-namespace lookups. Pods in the prod namespace could not resolve the svc-test service in the test namespace despite valid services and endpoints. Root Cause The issue stemmed from CoreDNS not being configured to handle cross-namespace DNS queries by default … Read more

C++14 Get maximum enum value using template meta programming

Summary Issue: Determining the maximum value of an arbitrary enumeration in C++14 without using a sentinel value. Root cause: Lack of built-in mechanisms to introspect enum values and compute the maximum at compile-time. Impact: Inability to programmatically determine enum bounds, leading to potential runtime errors or manual maintenance. Root Cause No enum introspection: C++14 lacks … Read more

How can I manage Income Tax, TDS, and GST compliance together without maintaining separate software systems?

Summary Managing Income Tax, TDS, and GST compliance in separate systems leads to duplicate data entry, inconsistent master data, and increased manual effort. A centralized, integrated system can streamline these processes, ensuring data consistency and reducing reconciliation time. Root Cause The root cause lies in the siloed nature of separate software systems, which lack data … Read more

Firebase Cloud Messaging token is never returned for my Android app (getToken() does nothing, no error)

Summary A production incident occurred where Firebase Cloud Messaging (FCM) never returned a registration token on a physical Android 15 device. Both onNewToken() and FirebaseMessaging.getInstance().getToken() produced no output—no success, no failure, no exception. The app was correctly configured, permissions granted, and Firebase initialized, yet token generation silently stalled. Root Cause The underlying issue was Google … Read more

CanActivate and SSR In Angular 21

Summary This incident involved an Angular 21 application where a CanActivate guard incorrectly redirected authenticated users when navigating directly to a route (e.g., /home). The issue occurred only during Server-Side Rendering (SSR), even though a valid token existed in localStorage. Root Cause The guard relied on localStorage, which is not available during SSR. Because Angular … Read more

Infinite scrolling using nextjs16 and useInfiniteQuery (Tanstack)

Summary Infinite scrolling in a Next.js 16 application using Tanstack Query’s useInfiniteQuery and the IntersectionObserver API failed due to improper handling of the observer target and race conditions during page transitions. The issue caused unexpected behavior in loading subsequent pages, leading to incomplete data rendering. Root Cause Observer Target Mismanagement: The IntersectionObserver was not properly … Read more

How do you set up a SwiftUI LazyHStack so that it centers the nearest view when scrolling ends?

Summary Centering views in a SwiftUI LazyHStack after scrolling requires precise safe area padding and understanding of scrollTargetBehavior. The issue arises from incorrect padding values and the scroll bar’s behavior within the safe area. Root Cause Inaccurate safe area padding: Magic numbers like 40 don’t account for dynamic device dimensions, causing misalignment. Scroll bar limitation: … Read more

How to add Seperate Drill Through Pages for a Table in Power BI?

Summary In Power BI, implementing scalable drill-through functionality for a table with dynamic rows and row-level security (RLS) requires a clean, maintainable design. The current approach using transparent buttons fails as the table grows, especially with scrollable content and RLS constraints. A solution must handle dynamic row selection, page navigation, and security filtering efficiently. Root … Read more

How to clean the LD_LIBRARY_PATH variable and set a new one without conflicts?

Summary This postmortem analyzes a common environment‑level failure: LD_LIBRARY_PATH pollution causing subtle runtime conflicts in robotics stacks that mix ROS 2, Isaac Sim, CUDA, and vendor‑specific plugins. The system “worked” at first glance, but hidden library‑resolution collisions broke downstream functionality such as LiDAR /scan topics. Root Cause The underlying issue was residual library paths from … Read more

Does Google Ad Manager support codeless ad units for React Native or native mobile apps?

Summary The question revolves around the feasibility of using codeless ad units in mobile apps, specifically with Google Ad Manager (GAM), for platforms like React Native, Android, and iOS. The inquiry aims to clarify whether codeless ad units are strictly limited to web pages or if there’s support or a workaround for mobile applications. Root … Read more