--- title: How to scale out Marten | daily.dev description: A practical guide to scaling Marten (the .NET event store and document database built on PostgreSQL) across different deployment models. Covers stateless... canonical: https://daily.dev/posts/how-to-scale-out-marten-rfnfunl6g twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to scale out Marten | daily.dev og:description: A practical guide to scaling Marten (the .NET event store and document database built on PostgreSQL) across different deployment models. Covers stateless... og:url: https://daily.dev/posts/how-to-scale-out-marten-rfnfunl6g og:image: https://api.daily.dev/og/posts/RFnFuNL6g.png og:image:alt: How to scale out Marten og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to scale out Marten **[Event-Driven by Oskar Dudycz](https://daily.dev/sources/event-driven-io)** · 13 min read · 0 upvotes · 0 comments ## Summary A practical guide to scaling Marten (the .NET event store and document database built on PostgreSQL) across different deployment models. Covers stateless usage, serverless considerations, async projection scaling via the Async Daemon in Solo vs HotCold modes, splitting read/write operations from async processing into separate services, and an advanced sharding technique using PostgreSQL advisory locks with distinct daemon lock IDs to distribute projection types across independent Async Daemon instances. Includes a step-by-step scaling progression from single instance to fully sharded projections. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#architecture](https://daily.dev/tags/architecture), [#postgresql](https://daily.dev/tags/postgresql), [#distributed-systems](https://daily.dev/tags/distributed-systems) [View this post on daily.dev](https://daily.dev/posts/how-to-scale-out-marten-rfnfunl6g) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How to scale out Marten","url":"https://daily.dev/posts/how-to-scale-out-marten-rfnfunl6g","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-scale-out-marten-rfnfunl6g"},"datePublished":"2026-06-17T11:26:16.838Z","dateModified":"2026-06-17T11:32:42.525Z","description":"A practical guide to scaling Marten (the .NET event store and document database built on PostgreSQL) across different deployment models. Covers stateless...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/809408c4b0e5d0cfe95e2077d0e27177?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/809408c4b0e5d0cfe95e2077d0e27177?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Event-Driven by Oskar Dudycz","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Event-Driven by Oskar Dudycz","logo":"https://media.daily.dev/image/upload/s--unDKCFQ0--/f_auto,q_auto/v1781695550/logos/event-driven-io?_a=BAMAMiWQ0","url":"https://daily.dev/sources/event-driven-io"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/how-to-scale-out-marten-rfnfunl6g","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"architecture,postgresql,distributed-systems","timeRequired":"PT13M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Event-Driven by Oskar Dudycz","item":"https://daily.dev/sources/event-driven-io"},{"@type":"ListItem","position":3,"name":"How to scale out Marten"}]} ```