---
title: "Chill Your Data with Iceberg Write Audit Publish"
url: https://daily.dev/posts/chill-your-data-with-iceberg-write-audit-publish-g7j3zddle
source_url: https://medium.com/expedia-group-tech/chill-your-data-with-iceberg-write-audit-publish-746c9eb3db48
type: article
source: "Expedia Group Tech"
published: 2025-09-02T11:07:54.761Z
updated: 2025-09-02T11:08:20.930Z
tags: ["data-engineering", "spark", "etl", "data-quality", "apache-iceberg"]
reading_time: 10
upvotes: 0
comments: 0
language: en
---

> ## Documentation Index
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# Chill Your Data with Iceberg Write Audit Publish

**[Expedia Group Tech](https://daily.dev/sources/expedia)** · 10 min read · 0 upvotes · 0 comments

## Summary

Apache Iceberg's Write-Audit-Publish (WAP) pattern enables data teams to validate changes in isolated branches before promoting to production. This approach eliminates the need for duplicate UAT environments, reduces storage costs by up to 30%, and cuts release costs by up to 99% by writing data once and reusing it across test and production. The workflow involves creating temporary branches, performing validation checks, and fast-forwarding metadata to production without file rewrites or downtime.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://medium.com/expedia-group-tech/chill-your-data-with-iceberg-write-audit-publish-746c9eb3db48>

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---

Tags: [#data-engineering](https://daily.dev/tags/data-engineering), [#spark](https://daily.dev/tags/spark), [#etl](https://daily.dev/tags/etl), [#data-quality](https://daily.dev/tags/data-quality), [#apache-iceberg](https://daily.dev/tags/apache-iceberg)

[View this post on daily.dev](https://daily.dev/posts/chill-your-data-with-iceberg-write-audit-publish-g7j3zddle)