vinodkc commented on code in PR #53275:
URL: https://github.com/apache/spark/pull/53275#discussion_r2582628835


##########
sql/connect/client/jvm/src/test/scala/org/apache/spark/sql/connect/test/RemoteSparkSession.scala:
##########
@@ -93,21 +94,47 @@ object SparkConnectServerUtils {
     if (isDebug) {
       builder.redirectError(Redirect.INHERIT)
       builder.redirectOutput(Redirect.INHERIT)
-    } else {
-      // If output is not consumed, the stdout/stderr pipe buffers will fill 
up,
-      // causing the server process to block on write() calls
-      builder.redirectError(Redirect.DISCARD)
-      builder.redirectOutput(Redirect.DISCARD)
     }
 
     val process = builder.start()
     consoleOut = process.getOutputStream
 
+    if (!isDebug) {
+      // Redirect stdout and stderr to log files.
+      // If output is not consumed, the stdout/stderr pipe buffers will fill 
up,
+      // causing the server process to block on write() calls.
+      val targetDir = new File(s"$connectClientHomeDir/target")
+      targetDir.mkdirs()
+      val timestamp = System.currentTimeMillis()
+      val stdoutLogFile = new File(targetDir, 
s"spark-connect-test-server-stdout-$timestamp.log")
+      val stderrLogFile = new File(targetDir, 
s"spark-connect-test-server-stderr-$timestamp.log")

Review Comment:
   @cloud-fan , I changed the implementation. Now it will use the log4j conf to 
write the logs on both debug and non-debug modes.



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