In-depth technical articles, high-load system architecture analyses, and practical digital transformation strategies shared directly by Sudo’s engineers and solutions architects.
When an order system is split into microservices, a request that sounds simple, like "place an order", suddenly touches three databases: inventory reservation, payment, and shipping. There is no singl...
Model Context Protocol is an open protocol that lets AI applications (clients) connect to external tools and data (servers) through one common standard, instead of every application writing its own ad...
When a cluster runs dozens to hundreds of websites, a backup pipeline that processes sites one by one no longer makes sense: every site has to compress its web directory, dump its database and push to...
The hand-written tool calling loop from the previous article is enough for a simple agent, but it has one weakness: all state lives in local variables of a running Python function. The more branches t...
An order is paid through a third-party gateway. One evening the gateway does not go down completely, it just gets slow: every call takes 30 seconds instead of 300 milliseconds. Tomcat threads are held...
Moving one website from a VPS to Kubernetes is not hard. Moving dozens of websites without interrupting any of them takes a process. This document describes a process for migrating websites from VPS t...
An LLM only produces text. To let it look up an order, calculate shipping or issue a refund, you have to give it a way to ask your application to do that, and the standard mechanism today is tool call...
The simplest way to attach website data to a pod is to declare an NFS volume directly in the Deployment: one server line, one path line, and you are done. That works, but there is nowhere to put mount...
On Kubernetes, MySQL out of connections rarely shows up under its real name. You see pods stuck in Terminating or PodInitializing, liveness probes failing, users getting 502, and all eyes turn to the...
An online shop starts with an orders table and one OrderService class that does everything. A year later, the admin screen needs to list orders with totals, the query that joins five tables runs slowl...
Getting the HTML from a crawler is only half the job. The other half is structured data extraction: turning a page into typed records you can load into a database or a report. The classic approach to...
You edit the prompt, change how chunks are split, swap the embedding model, and the chatbot "seems better". But better by how much, on which questions, and which questions are quietly getting worse? W...
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