--- title: Don't Let Apache Iceberg Sink Your Analytics: Practical... description: Apache Iceberg is a powerful open table format enabling multi-engine data sharing, but it comes with real practical limitations in 2025. Key issues include... canonical: https://daily.dev/posts/don-t-let-apache-iceberg-sink-your-analytics-practical-limitations-in-2025-j9m7xbstu twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Don't Let Apache Iceberg Sink Your Analytics: Practical Limitations in 2025 | daily.dev og:description: Apache Iceberg is a powerful open table format enabling multi-engine data sharing, but it comes with real practical limitations in 2025. Key issues include... og:url: https://daily.dev/posts/don-t-let-apache-iceberg-sink-your-analytics-practical-limitations-in-2025-j9m7xbstu og:image: https://api.daily.dev/og/posts/J9M7xbsTU.png og:image:alt: Don't Let Apache Iceberg Sink Your Analytics: Practical Limitations in 2025 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. # Don't Let Apache Iceberg Sink Your Analytics: Practical Limitations in 2025 **[Quesma](https://daily.dev/sources/quesma)** · 10 min read · 0 upvotes · 0 comments ## Summary Apache Iceberg is a powerful open table format enabling multi-engine data sharing, but it comes with real practical limitations in 2025. Key issues include metadata overhead and file explosion for small-scale or high-frequency writes, a fragmented ecosystem where Python/Rust/Go ports lag behind the Java reference implementation, incomplete write and delete support in popular engines like ClickHouse and DuckDB, performance penalties (2-3x slower than native formats), lack of built-in governance/security controls, and hard architectural limits around write concurrency (Adobe hit ~15 transactions/minute) and real-time ingestion. Cloud egress costs also undermine Iceberg's multi-cloud portability promise. Iceberg is best suited for large, slowly-changing datasets shared across query engines — not for OLTP, real-time observability, or small-data workloads. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Why Apache Iceberg Is Not “Just Another Table Format”](https://daily.dev/posts/why-apache-iceberg-is-not-just-another-table-format--jeknvsrjf) · Snowflake Community · 37 upvotes · 0 comments - [Iceberg Lake for Data Analytics: Optimization Guide](https://daily.dev/posts/iceberg-lake-for-data-analytics-optimization-guide-kmewy4cgp) · ITNEXT · 1 upvotes · 0 comments - [Iceberg Needs an Open Catalog, Not a Walled Garden](https://daily.dev/posts/iceberg-needs-an-open-catalog-not-a-walled-garden-znv0xeptl) · SingleStore · 0 upvotes · 0 comments - [ClickHouse and Apache Iceberg: A Practical Guide to Data Lakehouse Integration](https://daily.dev/posts/clickhouse-and-apache-iceberg-a-practical-guide-to-data-lakehouse-integration-fhwzab4sv) · BigData Boutique blog · 0 upvotes · 0 comments --- Tags: [#big-data](https://daily.dev/tags/big-data), [#data-lake](https://daily.dev/tags/data-lake), [#apache-iceberg](https://daily.dev/tags/apache-iceberg), [#data-architecture](https://daily.dev/tags/data-architecture) [View this post on daily.dev](https://daily.dev/posts/don-t-let-apache-iceberg-sink-your-analytics-practical-limitations-in-2025-j9m7xbstu) ```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":"Don't Let Apache Iceberg Sink Your Analytics: Practical Limitations in 2025","url":"https://daily.dev/posts/don-t-let-apache-iceberg-sink-your-analytics-practical-limitations-in-2025-j9m7xbstu","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/don-t-let-apache-iceberg-sink-your-analytics-practical-limitations-in-2025-j9m7xbstu"},"datePublished":"2026-03-31T13:39:57.396Z","dateModified":"2026-03-31T13:46:53.376Z","description":"Apache Iceberg is a powerful open table format enabling multi-engine data sharing, but it comes with real practical limitations in 2025. 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