JMS destination lookup error on JBOSS EAP 8

Summary The JMS destination lookup error on JBOSS EAP 8 occurs when the application attempts to look up a JMS queue or topic using the InitialContext. The error is caused by a ClassNotFoundException for the ActiveMQJMSConnectionFactory class. This issue arises due to a missing dependency or incorrect configuration in the application. Root Cause The root … Read more

Search and return a specific IP in array

其中的关键在于使用JSONata进行数组过滤操作。 ## Summary A developer attempted to retrieve a specific IP address from an unordered array of IP addresses in a JSON document using JSONata. The challenge arose because the array elements were not guaranteed to be in a fixed order, requiring a search method rather than positional access. This highlighted a gap in understanding … Read more

Why is the online compiler complaining that **long double m_p=1.67262192595e−27L;** as the error **main.c:9:21: error: exponent has no digits**?

Summary This postmortem details a compilation error encountered in a C program that calculates the ionization energy of Hydrogen using long double precision. The error main.c:9:21: error: exponent has no digits appeared due to invalid Unicode characters masquerading as mathematical operators and multiple C syntax violations. The solution required replacing Unicode exponents and fixing syntax … Read more

Plotly, have one dropdown menu for each level in DataFrame multi-index

Summary The question revolves around creating an interactive 3D scatter plot with multiple dropdown menus for a multi-indexed DataFrame using Plotly. The goal is to have one dropdown menu for each level in the DataFrame’s multi-index, allowing for efficient selection and visualization of data, especially when dealing with large datasets. Root Cause The root cause … Read more

Can LD_PRELOAD replace a function resolved via dlopen()/dlsym()?

Summary The question revolves around whether LD_PRELOAD can replace a function resolved via dlopen() and dlsym(). In a scenario where a program dynamically loads liba.so, resolves and calls func1() from it, and another library libb.so redefines func1(), the goal is to use LD_PRELOAD to force the program to use func1() from libb.so instead of the … Read more

AzureML Compute Instance Mount Data (SDK V2)

Summary The AzureML Compute Instance provides a managed environment for machine learning workflows, and accessing blob data storage is a common requirement. In this scenario, the goal is to mount the blob data storage and access the data as if it were a native file system, without downloading the data to disk. The AzureML V2 … Read more

Parameter count difference between UNETR paper and MONAI implementation

Summary The discrepancy in the reported number of parameters between the UNETR paper and the MONAI implementation is a critical issue that needs to be addressed. Parameter count accuracy is essential in deep learning research, as it affects the comparison of different models. The UNETR paper reports approximately 92.58M parameters, while the MONAI implementation reports … Read more

How does WordPress use PHP to render dynamic pages?

Summary WordPress uses PHP to render dynamic pages by fetching content from a database and using themes and templates to structure the output. The process involves several steps, including querying the database, processing templates, and executing PHP code. Root Cause The root cause of WordPress’s ability to render dynamic pages lies in its use of: … Read more