https://www.compilemymind.com/tags/publish-subscribe/ Recent content in Publish-Subscribe on Compile My Mind Hugo en Thu, 15 Oct 2026 13:01:41 +0300 https://www.compilemymind.com/posts/message-queue-vs-publish-subscribe/ Thu, 15 Oct 2026 13:01:41 +0300 https://www.compilemymind.com/posts/message-queue-vs-publish-subscribe/ <p>An order is placed. Inventory must reserve stock, billing must create an invoice, analytics must record the sale, and an email must reach the customer.</p> <p>It is tempting to put that order into one queue and start four consumers. The diagram looks asynchronous and scalable. The behavior, however, is wrong: if those consumers compete for messages, one may reserve stock while another sends the email, but no single order triggers all four actions.</p>