Sachidananda Dash [http://community.jboss.org/people/sachi.dash] created the discussion "Re: Performance issue related to logging in JBOSS 5" To view the discussion, visit: http://community.jboss.org/message/568091#568091 -------------------------------------------------------------- Hi Francesco, Here is the configuration of my jboss-log4j.xml <!-- A time/date based rolling appender -->    <appender name="FILE" class="org.jboss.logging.appender.DailyRollingFileAppender">       <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>       <param name="File" value="${jboss.server.log.dir}/server.log"/>       <param name="Append" value="true"/>       <!-- In AS 5.0.x the server log threshold was set by a system            property. In 5.1 and later we are instead using the system            property to set the priority on the root logger (see <root/> below)       <param name="Threshold" value="${jboss.server.log.threshold}"/>       -->             <!-- Rollover at midnight each day -->       <param name="DatePattern" value="'.'yyyy-MM-dd"/>       <!-- Rollover at the top of each hour       <param name="DatePattern" value="'.'yyyy-MM-dd-HH"/>       -->       <layout class="org.apache.log4j.PatternLayout">          <!-- The default pattern: Date Priority [Category] (Thread) Message\n -->          <param name="ConversionPattern" value="%d %-5p [%c] (%t) %m%n"/>          <!-- The full pattern: Date MS Priority [Category] (Thread:NDC) Message\n          <param name="ConversionPattern" value="%d %-5r %-5p [%c] (%t:%x) %m%n"/>           -->       </layout>    </appender>    <!-- A size based file rolling appender-->    <appender name="FILE1" class="org.jboss.logging.appender.RollingFileAppender">      <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>      <param name="File" value="${jboss.server.log.dir}/server.log"/>      <param name="Append" value="false"/>      <param name="MaxFileSize" value="10MB"/>      <param name="MaxBackupIndex" value="3"/>      <layout class="org.apache.log4j.PatternLayout">        <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>      </layout>            </appender>    <!-- ============================== -->    <!-- Append messages to the console -->    <!-- ============================== -->    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">       <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>       <param name="Target" value="System.out"/> <param name="Threshold" value="INOF"/>       <param name="Threshold" value="INFO"/>       <layout class="org.apache.log4j.PatternLayout">          <!-- The default pattern: Date Priority [Category] Message\n -->          <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/>       </layout>    </appender> <!-- A time/date based rolling appender -->    <appender name="FILE" class="org.jboss.logging.appender.DailyRollingFileAppender">       <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>       <param name="File" value="${jboss.server.log.dir}/server.log"/>       <param name="Append" value="true"/>       <!-- In AS 5.0.x the server log threshold was set by a system            property. In 5.1 and later we are instead using the system            property to set the priority on the root logger (see <root/> below)       <param name="Threshold" value="${jboss.server.log.threshold}"/>       -->       <!-- Rollover at midnight each day -->       <param name="DatePattern" value="'.'yyyy-MM-dd"/>       <!-- Rollover at the top of each hour       <param name="DatePattern" value="'.'yyyy-MM-dd-HH"/>       -->       <layout class="org.apache.log4j.PatternLayout">          <!-- The default pattern: Date Priority [Category] (Thread) Message\n -->          <param name="ConversionPattern" value="%d %-5p [%c] (%t) %m%n"/>          <!-- The full pattern: Date MS Priority [Category] (Thread:NDC) Message\n          <param name="ConversionPattern" value="%d %-5r %-5p [%c] (%t:%x) %m%n"/>           -->       </layout>    </appender>    <!-- A size based file rolling appender-->    <appender name="FILE1" class="org.jboss.logging.appender.RollingFileAppender">      <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>      <param name="File" value="${jboss.server.log.dir}/server.log"/>      <param name="Append" value="false"/>      <param name="MaxFileSize" value="10MB"/>      <param name="MaxBackupIndex" value="3"/>      <layout class="org.apache.log4j.PatternLayout">        <param name="ConversionPattern" value="%d %-5p [%c] %m%n"/>      </layout>    </appender>    <!-- ============================== -->    <!-- Append messages to the console -->    <!-- ============================== -->    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">       <errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>       <param name="Target" value="System.out"/> <param name="Threshold" value="INOF"/>       <param name="Threshold" value="INFO"/>       <layout class="org.apache.log4j.PatternLayout">          <!-- The default pattern: Date Priority [Category] Message\n -->          <param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/>       </layout>    </appender> -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/568091#568091] Start a new discussion in Performance Tuning at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]

Sachidananda Dash [http://community.jboss.org/people/sachi.dash] created the discussion "Re: Performance issue related to logging in JBOSS 5" To view the discussion, visit: http://community.jboss.org/message/569691#569691 -------------------------------------------------------------- Hi Peter sorry for the late reply but I have taken your suggestion and implemented the same but I was unable to solve the issue. The issue still persists can you please help me out or give any valuable suggestion. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/569691#569691] Start a new discussion in Performance Tuning at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]

Sachidananda Dash [http://community.jboss.org/people/sachi.dash] created the discussion "Re: Performance issue related to logging in JBOSS 5" To view the discussion, visit: http://community.jboss.org/message/569713#569713 -------------------------------------------------------------- HI Peter Is there any other configuration setting in log4j to look for ?? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/569713#569713] Start a new discussion in Performance Tuning at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]

Francesco Marchioni [http://community.jboss.org/people/f_marchioni] created the discussion "Re: Performance issue related to logging in JBOSS 5" To view the discussion, visit: http://community.jboss.org/message/569801#569801 -------------------------------------------------------------- For example, you might try adding to your File Appender configuration: <param name="ImmediateFlush" value="false" /> This will avoid flusing every log statement, thus reducing the stress on CPU, but will engage more memory. However the problem appears to me quite complex, so you will need a full CPU-Memory analisys. (By the way, I also am not aware of any issue related to log4j file Appender like the one you have mentioned). Hope it helps Francesco -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/569801#569801] Start a new discussion in Performance Tuning at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]