diff --git a/devstack/files/spark/spark-defaults.conf b/devstack/files/spark/spark-defaults.conf
index 35a6e3e..32c5071 100644
--- a/devstack/files/spark/spark-defaults.conf
+++ b/devstack/files/spark/spark-defaults.conf
@@ -25,3 +25,6 @@ spark.ui.retainedJobs 10
 spark.ui.retainedStages 10
 spark.driver.extraJavaOptions -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:/tmp/gc_driver.log
 spark.executor.extraJavaOptions -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -Xloggc:/tmp/gc_executor.log
+spark.executor.logs.rolling.maxRetainedFiles 6
+spark.executor.logs.rolling.strategy time
+spark.executor.logs.rolling.time.interval hourly