Thanks Raman.

I read somewhere that maxHistory depends on the roll-over type. So if I have something like this
<fileNamePattern>test.log.%d{yyyy-MM-dd}.%i</fileNamePattern>
<maxHistory>10</maxHistory>

<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
 </timeBasedFileNamingAndTriggeringPolicy>

which means daily roll-over and maxHistory signifies that it will keep it for 10 days. So that is where I'm facing a problem, as putting a number in maxHistory signifies the number of days it will keep the history for and not the maximum number for files per day.

I also have a case like the following

<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>test.log.%d{yyyy-MM}.%i</fileNamePattern>
        <maxHistory>1</maxHistory>
        <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                         <maxFileSize>10MB</maxFileSize>
         </timeBasedFileNamingAndTriggeringPolicy>
 </rollingPolicy>

When mentioning the value 1 in maxHistory I assume it means saving it for a month. So its going to save all test.log.2011-03.0, test.log.2011-03.1,test.log.2011-03.2,......... Once it reaches may all files for the month or 03 will be deleted and instead we will have those for 04. Correct me If I'm not thinking right?






"Raman, Kalyan" <Kalyan.Raman@morganstanley.com>
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04/06/2011 09:37 AM
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Hi Neha,
                The maxHistory denotes the number of history files that are maintained. So if you want a cap of the index to be say 10, configure the maxHistory to 10 like shown below, which results in the max index of the history files will be 10.
In your case it will be test.log.2011-04-06.10
 
Thanks,
Kalyan
 
From: logback-user-bounces@qos.ch [mailto:logback-user-bounces@qos.ch] On Behalf Of Neha Kothari
Sent:
Wednesday, April 06, 2011 9:27 AM
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Re: [logback-user] Logback configuration

 

The max history is for setting the limit on the file size. I want to set a cap on the index i appended.


Clemens Siebler <clemens.siebler@googlemail.com>
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04/06/2011 05:08 AM


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Should be possible using the maxHistory parameter:

   <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender">
       <File>test.log</File>
       <encoder>
           <pattern>... </pattern>
       </encoder>
       <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
           <fileNamePattern>test.log.%d{yyyy-MM-dd}.%i</fileNamePattern>
           <maxHistory>10</maxHistory>
           <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
               <maxFileSize>10MB</maxFileSize>
           </timeBasedFileNamingAndTriggeringPolicy>
       </rollingPolicy>
   </appender>

On Tue, Apr 5, 2011 at 10:22 PM, Neha Kothari <
neha.kothari@db.com> wrote:

Hi have started to use logback for logging in java. I am using "TimeBasedRollingPolicy" rolling policy as I wanted dated logs.


My file pattern looks like c:/spg-live.%d{yyyy-MM-dd}.%i.log

Is there a way that I can put a maxIndex (i.e the maximum limit for i) using the same rolling policy?


Thanks



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