From 13a1d861cffceff0868dc475ac500254de6e4e5d Mon Sep 17 00:00:00 2001
From: Steve Loughran <stevel@cloudera.com>
Date: Tue, 27 Jan 2026 13:54:58 +0000
Subject: [PATCH] Build: Downgrade hadoop version to 3.3.4 for Spark 3.x
 compatibility

- Downgrades the hadoop version
- Adds a comment to libs.versions saying why it needs to be kept down and hence when it
  can be upgraded.

Fixes #15100
---
 gradle/libs.versions.toml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index fbb4d7cf9ba1..9a41165fd2c4 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -54,7 +54,9 @@ flink21 = { strictly = "2.1.0"}
 google-libraries-bom = "26.74.0"
 gcs-analytics-core = "1.2.3"
 guava = "33.5.0-jre"
-hadoop3 = "3.4.2"
+# keep at the same version as the oldest supported spark release, to ensure
+# API/link compatibility.
+hadoop3 = "3.3.4"
 httpcomponents-httpclient5 = "5.6"
 hive2 = { strictly = "2.3.10"} # see rich version usage explanation above
 immutables-value = "2.12.1"