diff --git a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/KyuubiSparkUtil.scala b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/KyuubiSparkUtil.scala
index a7a7621b7..274cbc6cc 100644
--- a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/KyuubiSparkUtil.scala
+++ b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/KyuubiSparkUtil.scala
@@ -23,7 +23,8 @@ import org.apache.spark.sql.SparkSession
 
 object KyuubiSparkUtil {
 
-  def diagnostics(spark: SparkSession): String = {
+  lazy val diagnostics: String = {
+    val spark = SparkSession.active
     val sc = spark.sparkContext
     val webUrl = sc.getConf.getOption(
       "spark.org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter.param.PROXY_URI_BASES")
diff --git a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/SparkSQLEngine.scala b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/SparkSQLEngine.scala
index 51bf633c5..cf313ef2f 100644
--- a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/SparkSQLEngine.scala
+++ b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/SparkSQLEngine.scala
@@ -116,7 +116,7 @@ object SparkSQLEngine extends Logging {
     try {
       spark = createSpark()
       engine = startEngine(spark)
-      info(KyuubiSparkUtil.diagnostics(spark))
+      info(KyuubiSparkUtil.diagnostics)
       // blocking main thread
       countDownLatch.await()
     } catch {
diff --git a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/operation/ExecuteStatement.scala b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/operation/ExecuteStatement.scala
index 11142d41b..c16ce9e9e 100644
--- a/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/operation/ExecuteStatement.scala
+++ b/externals/kyuubi-spark-sql-engine/src/main/scala/org/apache/kyuubi/engine/spark/operation/ExecuteStatement.scala
@@ -67,7 +67,7 @@ class ExecuteStatement(
   private def executeStatement(): Unit = {
     try {
       setState(OperationState.RUNNING)
-      info(KyuubiSparkUtil.diagnostics(spark))
+      info(KyuubiSparkUtil.diagnostics)
       Thread.currentThread().setContextClassLoader(spark.sharedState.jarClassLoader)
       spark.sparkContext.setJobGroup(statementId, statement, forceCancel)
       result = spark.sql(statement)