Page 4 - Maxim Mironjuk

Hot reload behaves differently in containers than on bare metal, because bind mounts, filesystem events and OPcache validation add extra layers between the editor and the running process. Understanding these layers makes PHP and Node changes appear just as fast as without containers, without rebuilding on every code change.

InnoDB can compress tables page by page without the application noticing anything. The mechanism behind it, choosing the right KEY_BLOCK_SIZE, and the trade-off between storage savings and additional CPU overhead determine whether ROW_FORMAT=COMPRESSED truly pays off for a given table. For Magento installations with extensive log and archive tables, compression can noticeably reduce disk space and cache pressure, while for hot, frequently written core tables it can turn into a bottleneck.

Conditional types let you make the type of an expression depend on a condition over another type. They sit behind almost every built in utility type, such as Exclude, ReturnType, or Awaited, and solve problems that would otherwise only be solvable with type assertions or duplicated code. This article covers the syntax, practical use cases, and the point where readability breaks.

React Hooks work even without explicit types, but usually only correctly by accident. As soon as a state can take multiple possible shapes, a ref gets used in three different ways, or a custom hook loads data from an API, typing decides whether errors surface at compile time or only for the user. This article shows how to make React Hooks type-safe from the ground up with TypeScript, from useState to your own generic custom hook.

Redis transmits connection data unencrypted by default, a state many internal networks tolerated for years because the instances mostly ran behind a firewall. But once cloud environments, container orchestration, or compliance requirements enter the picture, relying purely on network segmentation is no longer enough. Since Redis 6, TLS can be configured natively, including mutual authentication between client and server. This article covers how to set up end-to-end encryption cleanly on both the server and client side, what performance overhead TLS termination actually causes, how connection reuse and session resumption noticeably cut that overhead, and how certificate rotation succeeds in production without interrupting the connection.

Anyone who builds the same thing on production as on staging is not actually testing what they tested on staging. Promoting a validated artifact, instead of rebuilding it, is the foundation of reproducible deployments. GitLab environments, manual approvals and correct variable scopes make this process team ready and auditable.

A failover mechanism that has never been tested under realistic conditions is only an assumption about resilience, not proof of it. Systematic failover testing with controlled failure simulations, clear metrics like RTO and RPO, and a repeatable test plan uncovers exactly the gaps that would cause long outages in a real emergency.

Where silent data corruption is not an option, a classic filesystem paired with a RAID controller often falls short. ZFS combines volume management and filesystem into a single layer, checksums every block, and repairs corrupted copies automatically whenever redundancy exists. This article covers installation, pool setup, and a practical example for database storage.

@custom-media lets you name a media query condition once and reuse it everywhere in the stylesheet, instead of repeating the same width value in twenty places. Today PostCSS handles that translation at build time, but the Media Queries Level 5 specification brings exactly this capability directly into the browser.

Name resolution failure is one of the most common and, at the same time, one of the least understood errors in Docker setups. Anyone who knows how the embedded DNS server works and which tools expose the root cause can find DNS issues in Docker networks in minutes instead of hours.