Azure Subscription Disabled After Trial: How to Create Free Resources for Databricks Learning? Summary Azure Free Trials provide 30 days of complimentary access to cloud services. When the trial expires, subscriptions enter a disabled state, preventing resource creation. For learners in data engineering, this blocks essential activities like mounting Azure Data Lake Storage (ADLS Gen2) … Read more
Bash Pitfall: Why true || exit Exits Your Shell (And How To Avoid It) Summary Encountering true || exit causing an immediate shell termination? This unexpected behavior occurs when the command runs in a sourced script context. Despite true succeeding (which should skip the right side of ||), Bash still executes exit and terminates your … Read more
— title: “Solving Terraform Error: Call to function \”merge\” failed: arguments must be maps or objects, got \”tuple\”” date: 2023-09-28 tags: terraform, terraform-aws-eks, aws —  *Learn why Terraform’s merge function fails with “got tuple” error and how to fix it professionally.* ## Problem Summary When merging AWS subnet tags using Terraform’s `merge()` … Read more
Data loss is rarely caused by exotic bugs or Hollywood-style hacker attacks.In the real world, data disappears because of boring, predictable, human-made mistakes—often by experienced teams under pressure.This article breaks down the most common real-world data loss scenarios, based on production incidents, post-mortems, and failure patterns that keep repeating across companies of all sizes.If you … Read more