[GitHub] [spark] zhenlineo commented on a diff in pull request #40581: [SPARK-42953][Connect] Typed filter, map, flatMap, mapPartitions

["zhenlineo (via GitHub)" <gi...@apache.org>]

zhenlineo commented on code in PR #40581:
URL: https://github.com/apache/spark/pull/40581#discussion_r1152274921


##########
connector/connect/client/jvm/src/test/scala/org/apache/spark/sql/connect/client/util/IntegrationTestUtils.scala:
##########
@@ -43,7 +45,27 @@ object IntegrationTestUtils {
     }
     sys.props.getOrElse("spark.test.home", sys.env("SPARK_HOME"))
   }
-  private[connect] val isDebug = System.getProperty(DEBUG_SC_JVM_CLIENT, "false").toBoolean
+
+  private[connect] lazy val debugConfig: Seq[String] = {
+    val log4j2 = s"$sparkHome/connector/connect/client/jvm/src/test/resources/log4j2.properties"
+    if (isDebug) {
+      Seq(
+        // Enable to see the server plan change log
+        // "--conf",
+        // "spark.sql.planChangeLog.level=WARN",
+
+        // Enable to see the server grpc received
+        // "--conf",
+        // "spark.connect.grpc.interceptor.classes=" +
+        //  "org.apache.spark.sql.connect.service.LoggingInterceptor",
+
+        // Redirect server log into console
+        "--conf",
+        s"spark.driver.extraJavaOptions=-Dlog4j.configuration=$log4j2",
+        "--conf",

Review Comment:
   I tried `s"spark.driver.extraJavaOptions=-Dlog4j.configurationFile=$log4j2"`, but the logs is not picked up? Do you know what is the correct way to use `log4j.configurationFile`?



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