diff --git a/conf/log4j.properties b/conf/log4j.properties
index 0645738384..d9dbbb6e69 100644
--- a/conf/log4j.properties
+++ b/conf/log4j.properties
@@ -24,9 +24,10 @@ log4j.rootLogger=INFO,stdout,R
 log4j.appender.stdout=org.apache.log4j.ConsoleAppender
 log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout
 
-# rolling log file ("system.log
-log4j.appender.R=org.apache.log4j.DailyRollingFileAppender
-log4j.appender.R.DatePattern='.'yyyy-MM-dd-HH
+# rolling log file
+log4j.appender.R=org.apache.log4j.RollingFileAppender
+log4j.appender.file.maxFileSize=20MB
+log4j.appender.file.maxBackupIndex=50
 log4j.appender.R.layout=org.apache.log4j.PatternLayout
 log4j.appender.R.layout.ConversionPattern=%5p [%t] %d{ISO8601} %F (line %L) %m%n
 # Edit the next line to point to your logs directory