(spark) branch master updated: [SPARK-46717][CORE] Simplify `ReloadingX509TrustManager` by the exit operation only depend on interrupt thread

[dongjoon]

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The following commit(s) were added to refs/heads/master by this push:
     new de79388923ee [SPARK-46717][CORE] Simplify `ReloadingX509TrustManager` 
by the exit operation only depend on interrupt thread
de79388923ee is described below

commit de79388923eefa84617759e84ec4b19bd7984348
Author: beliefer <belie...@163.com>
AuthorDate: Mon Jan 15 14:31:16 2024 -0800

    [SPARK-46717][CORE] Simplify `ReloadingX509TrustManager` by the exit 
operation only depend on interrupt thread
    
    ### What changes were proposed in this pull request?
    This PR propose to simplify the `ReloadingX509TrustManager`.
    
    ### Why are the changes needed?
    Currently, close or destroy `ReloadingX509TrustManager` depend on interrupt 
thread and the volatile variable `running`.
    In fact, we can change the `running` to a local variable on stack and let 
the close operation of `ReloadingX509TrustManager` only depend on interrupt 
thread.
    
    ### Does this PR introduce _any_ user-facing change?
    'No'.
    
    ### How was this patch tested?
    GA tests.
    
    ### Was this patch authored or co-authored using generative AI tooling?
    'No'.
    
    Closes #44720 from beliefer/simplify-ReloadingX509TrustManager.
    
    Authored-by: beliefer <belie...@163.com>
    Signed-off-by: Dongjoon Hyun <dh...@apple.com>
---
 .../org/apache/spark/network/ssl/ReloadingX509TrustManager.java     | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git 
a/common/network-common/src/main/java/org/apache/spark/network/ssl/ReloadingX509TrustManager.java
 
b/common/network-common/src/main/java/org/apache/spark/network/ssl/ReloadingX509TrustManager.java
index 6572506f38df..18618e7d5c8b 100644
--- 
a/common/network-common/src/main/java/org/apache/spark/network/ssl/ReloadingX509TrustManager.java
+++ 
b/common/network-common/src/main/java/org/apache/spark/network/ssl/ReloadingX509TrustManager.java
@@ -61,7 +61,6 @@ public final class ReloadingX509TrustManager
   protected volatile int needsReloadCheckCounts;
   private final AtomicReference<X509TrustManager> trustManagerRef;
 
-  private volatile boolean running;
   private Thread reloader;
 
   /**
@@ -98,7 +97,6 @@ public final class ReloadingX509TrustManager
   public void init() {
     reloader = new Thread(this, "Truststore reloader thread");
     reloader.setDaemon(true);
-    running = true;
     reloader.start();
   }
 
@@ -106,7 +104,6 @@ public final class ReloadingX509TrustManager
    * Stops the reloader thread.
    */
   public void destroy() throws InterruptedException {
-    running = false;
     reloader.interrupt();
     reloader.join();
   }
@@ -200,11 +197,12 @@ public final class ReloadingX509TrustManager
 
   @Override
   public void run() {
+    boolean running = true;
     while (running) {
       try {
         Thread.sleep(reloadInterval);
       } catch (InterruptedException e) {
-        //NOP
+        running = false;
       }
       try {
         if (running && needsReload()) {


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