Summary The problem at hand is to display detailed information from a query in a Grafana alert annotation description. The goal is to show entry_ids grouped by entry_type without modifying the existing SQL queries. The desired output is a single alert with all necessary information in the description. Root Cause The root cause of the … Read more
Summary A Common Lisp application failed during ASDF system loading with the message: Unknown character encoding: :KSC_5601. This occurred specifically when attempting to load the cl+ssl library, causing crashes in both REPL environments and build scripts. The error stems from a missing alias in Babel. Root Cause The failure occurred due to: Missing encoding alias: … Read more
Summary The Windows Path Length Limitation can significantly impact the deployment of veraPDF, an open-source PDF validation framework, when bundled within an existing application’s deployment directory with a deeply nested base path. This can lead to file-access issues and runtime errors due to MAX_PATH-related constraints. Root Cause The root cause of this issue is the … Read more
Summary The issue at hand involves a Windows Server 2022 system with a WCF Windows service that consumes approximately 55 GB of private bytes. The system’s committed bytes suddenly increased from 105 GB to 160 GB, which is equivalent to the size of the WCF service’s private bytes, causing an out-of-memory exception. This increase in … Read more
Summary The problem involves creating a unique URL for each location where a Google Forms survey will be distributed, in order to autofill the Location_ID column in the corresponding Google Spreadsheet based on the visited URL. This allows for distinguishing responses by Location_ID while using a single survey form and spreadsheet. Root Cause The root … Read more
Pass-By-Value Parameter Causes Unintended Copy Operation Summary During optimization of a high-throughput C++ service, we identified severe performance degradation caused by unnecessary object copying in critical path code. The root issue occurred when a struct A was passed by value instead of by rvalue reference to a function spawning asynchronous operations. This resulted in: Unplanned … Read more
Summary When implementing jQuery UI Sortable on table rows within a Bootstrap container, the dragged row (ui-sortable-helper) horizontally overflows its responsive wrapper during drag operations. This occurs when the table’s width exceeds the viewport. Though sorting works functionally, visual overflow compromises UI integrity during drag interactions. Root Cause .table-responsive in Bootstrap uses overflow-x: auto internally, … Read more
Summary The task at hand involves creating a LaTeX template for a book with a twoside header and variable content, including Japanese text and images. The goal is to achieve a specific design where the left page has a header with numbering and two right-aligned headlines, and the right page has two left-aligned headlines with … Read more
Summary The locking of NFC tags as read-only is a critical aspect of ensuring the security and integrity of the data stored on these tags. In this article, we will explore the root cause of why locking NFC tags is essential, the real-world impact of failing to do so, and provide an example of how … Read more
Summary The issue at hand is a Rust gRPC server experiencing memory growth of approximately 1GB per request, leading to an eventual Out of Memory (OOM) error. This behavior is unexpected in Rust, given its focus on memory safety and lack of garbage collection. The goal is to diagnose and debug this memory growth issue. … Read more