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The following commit(s) were added to refs/heads/branch-4.0 by this push:
     new 3e09fd24aa5a [SPARK-54034][CORE] Fix `Utils.isBindCollision` to detect 
port conflict `NativeIoException` correctly
3e09fd24aa5a is described below

commit 3e09fd24aa5a1ddd0e94ba9d11056dc2ac4edfbe
Author: Dongjoon Hyun <[email protected]>
AuthorDate: Sun Oct 26 17:54:51 2025 -0700

    [SPARK-54034][CORE] Fix `Utils.isBindCollision` to detect port conflict 
`NativeIoException` correctly
    
    This PR aims to fix `Utils.isBindCollision` to detect port conflict 
NativeIoException correctly by using regular expression.
    
    Currently, `Utils.isBindCollision` fails to detect port conflicts when we 
use native Netty transport IO modes, `EPOLL` and `KQUEUE`.
    
    **BEFORE**
    
    ```
    [info] AutoNettyRpcEnvSuite:
    [info] - port conflict *** FAILED *** (7 milliseconds)
    [info]   io.netty.channel.unix.Errors$NativeIoException: bind(..) failed 
with error(-48): Address already in use
    ```
    
    **AFTER**
    
    ```
    [info] AutoNettyRpcEnvSuite:
    [info] - port conflict (68 milliseconds)
    ```
    
    No, this is a bug fix.
    
    Pass the CI with the newly added test suite, `AutoNettyRpcEnvSuite`.
    
    No.
    
    Closes #52738 from dongjoon-hyun/SPARK-54034.
    
    Authored-by: Dongjoon Hyun <[email protected]>
    Signed-off-by: Dongjoon Hyun <[email protected]>
    (cherry picked from commit e2b107196f593e268b9bd5ba5a4f03f6e658dd28)
    Signed-off-by: Dongjoon Hyun <[email protected]>
---
 core/src/main/scala/org/apache/spark/util/Utils.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/main/scala/org/apache/spark/util/Utils.scala 
b/core/src/main/scala/org/apache/spark/util/Utils.scala
index 7f86902573db..3d7cfdfd98b9 100644
--- a/core/src/main/scala/org/apache/spark/util/Utils.scala
+++ b/core/src/main/scala/org/apache/spark/util/Utils.scala
@@ -2313,7 +2313,7 @@ private[spark] object Utils
       case e: MultiException =>
         e.getThrowables.asScala.exists(isBindCollision)
       case e: NativeIoException =>
-        (e.getMessage != null && e.getMessage.startsWith("bind() failed: ")) ||
+        (e.getMessage != null && e.getMessage.matches("bind.*failed.*")) ||
           isBindCollision(e.getCause)
       case e: IOException =>
         (e.getMessage != null && e.getMessage.startsWith("Failed to bind to 
address")) ||


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