From 4c650f2687647fa7d4767524ad91139dc990fbe6 Mon Sep 17 00:00:00 2001
From: Hyukjin Kwon <hyukjin.kwon@databricks.com>
Date: Tue, 25 Aug 2026 19:16:20 +0900
Subject: [PATCH] [SPARK-58995][INFRA] Cancel superseded CI runs with a
 concurrency group

Add a `concurrency` group keyed on the workflow and ref with
`cancel-in-progress: true` to rust.yml, lint.yml, and build_python_connect.yml,
so a newer commit cancels the older, now-superseded run instead of letting stale
runs pile up in the Actions queue. release.yml is intentionally left out
(releases must not be cancelled); docs.yml already has this.

Co-authored-by: Isaac <no-reply@databricks.com>
---
 .github/workflows/build_python_connect.yml | 5 +++++
 .github/workflows/lint.yml                 | 5 +++++
 .github/workflows/rust.yml                 | 5 +++++
 3 files changed, 15 insertions(+)

diff --git a/.github/workflows/build_python_connect.yml b/.github/workflows/build_python_connect.yml
index e8fe9c83..f6c5cd93 100644
--- a/.github/workflows/build_python_connect.yml
+++ b/.github/workflows/build_python_connect.yml
@@ -19,6 +19,11 @@
 
 name: Python Connect Parity (Spark 4.2.0)
 
+# Cancel an in-progress run when a newer commit supersedes it (per workflow + ref).
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 # Mirrors Apache Spark's build_python_connect.yml approach, adapted for the
 # Rust-backed client: download the Spark 4.2.0 Connect server, start it, pull the
 # official v4.2.0 connect test files, and run them BOTH with the reference pyspark
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index ea0949af..c54657fc 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -19,6 +19,11 @@
 
 name: Lint
 
+# Cancel an in-progress run when a newer commit supersedes it (per workflow + ref).
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   push:
     branches: [master]
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 70538ce0..8b4f37ba 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -19,6 +19,11 @@
 
 name: Rust CI
 
+# Cancel an in-progress run when a newer commit supersedes it (per workflow + ref).
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   push:
     branches: [master]