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Comment: ShowIf for 'Deleting old log files' deleted

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Code Block
languagexml
titleRotating the log depending on a period
collapsetrue
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug="false" xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n" />
        </layout>
    </appender>
    <appender name="FILE" class="org.apache.log4j.DailyRollingFileAppender">
        <!-- not supported by DailyRollingFileAppender param name="MaxBackupIndex" value="7"/-->
        <param name="Append" value="true" />
        <param name="File" value="${LOGFILE}.log" />
        <param name="DatePattern" value="'.'yyyy-MM-dd" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n"/>
        </layout>
    </appender>
    <root>
        <priority value="debug"/>
        <appender-ref ref="FILE"/>
    </root>
</log4j:configuration>

 


The entry <param name="DatePattern" value="'.'yyyy-MM-dd"/>  specifies the rotation frequency:

FrequencyConfiguration Sample
Rotate every minute<param name="DatePattern" value="'.'yyyy-MM-dd-hhmm" />
Rotate every hour<param name="DatePattern" value="'.'yyyy-MM-dd-hh" />
Rotate every day<param name="DatePattern" value="'.'yyyy-MM-dd"/>

Rotating the log depending on the size

Code Block
languagexml
titleRotating the log depending on the size
collapsetrue
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug="false" xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n" />
        </layout>
    </appender>
    <appender name="FILE" class="org.apache.log4j.RollingFileAppender">
        <param name="Append" value="true" />
        <param name="File" value="${LOGFILE}.log" />
        <param name="MaxFileSize" value="2KB" />
        <param name="MaxBackupIndex" value="5" />
        
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n"/>
        </layout>
    </appender>
    <root>
        <priority value="debug"/>
        <appender-ref ref="FILE"/>
    </root>
</log4j:configuration>

 


This will create a new file .log.n (n=1..5) when the size exceeds 2KB. You also can specify 20MB etc. The maximum value for n is 13.

...

Code Block
languagexml
titleRotating and compressing the log depending on a period
collapsetrue
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug="false" xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n" />
        </layout>
    </appender>
      <appender name="FILE" class="org.apache.log4j.rolling.RollingFileAppender">
        <param name="Append" value="true" />
        <param name="File" value="${LOGFILE}.log" />
        
        <rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
            <param name="ActiveFileName" value="${LOGFILE}.log"/>
            <param name="FileNamePattern" value="${LOGFILE}.%d{yyyyMMdd-hh}.log.gz" />        
        </rollingPolicy>
        
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n"/>
        </layout>
    </appender>
      <root>
        <priority value="debug"/>
        <appender-ref ref="FILE"/>
    </root>
</log4j:configuration>

 


The entry <param name="FileNamePattern" value="${LOGFILE}.%d{yyyyMMdd-hh}.log" />  specifies the rotation frequency:

FrequencyConfiguration Sample
Rotate every minute<param name="FileNamePattern" value="${LOGFILE}.%d{yyyyMMdd-hhmm}.log" />
Rotate every hour<param name="FileNamePattern" value="${LOGFILE}.%d{yyyyMMdd-hh}.log" />
Rotate every day<param name="FileNamePattern" value="${LOGFILE}.%d{yyyyMMdd}.log" />

Rotating and compressing the log depending on the size

Code Block
languagexml
titleRotating and compressing the log depending on the size
collapsetrue
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug="false" xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n" />
        </layout>
    </appender>
    <appender name="FILE" class="org.apache.log4j.rolling.RollingFileAppender">
        <param name="Append" value="true" />
        <param name="File" value="${LOGFILE}.log" />
        
        <rollingPolicy class="org.apache.log4j.rolling.FixedWindowRollingPolicy">
            <param name="ActiveFileName" value="${LOGFILE}.log"/>
            <param name="maxIndex" value="5"/>
            <param name="FileNamePattern" value="${LOGFILE}.%i.log.gz"/>        
        </rollingPolicy>
        <triggeringPolicy class="org.apache.log4j.rolling.SizeBasedTriggeringPolicy">
            <param name="maxFileSize" value="2048"/>        
        </triggeringPolicy>
        
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS Z} [%-5p] %c - %m%n"/>
        </layout>
    </appender>
    <root>
        <priority value="debug"/>
        <appender-ref ref="FILE"/>
    </root>
</log4j:configuration>

 


This will create a new file .n.log (n=1..5) whenever the size exceeds 20KB. You also can specify 20MB etc. The max value for n ist 13. 


Show If
groupsos-members

Deleting old log files

As log4j does not provide deleting of old files (maxBackupIndex does not work for all appenders), you should implement a file deletion job on the master. For each agent, you have do define a seperate job.

Code Block
languagexml
titleDeleting old files
<job  title="Remove temporary files" order="no" process_class="vmubuntu2" name="CleanupLogFiles">
    <description >
        <include  file="jobs/JobSchedulerCleanupFiles.xml"/>
    </description>
    <params >
        <param  name="file_path" value="./logs"/>
        <param  name="file_spec" value="^.*\.log.gz$"/>
        <param  name="file_age" value="00:03"/>
    </params>
    <script  language="java" java_class="sos.scheduler.job.JobSchedulerCleanupFiles"/>
    <run_time >
        <weekdays >
            <day  day="1 2 3 4 5 6 7">
                <period  single_start="23:00"/>
            </day>
        </weekdays>
    </run_time>
</job>