[logback-dev] [JIRA] Updated: (LBCORE-217) CyclicBufferFileAppender

[Pascal Leclercq (JIRA)]

     [ http://jira.qos.ch/browse/LBCORE-217?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pascal Leclercq updated LBCORE-217:
-----------------------------------

    Attachment: logback-cyclic-appender.zip

Finally I can upload after issue creation.

> CyclicBufferFileAppender
> ------------------------
>
>                 Key: LBCORE-217
>                 URL: http://jira.qos.ch/browse/LBCORE-217
>             Project: logback-core
>          Issue Type: New Feature
>          Components: Appender
>            Reporter: Pascal Leclercq
>            Assignee: Logback dev list
>         Attachments: logback-cyclic-appender.zip
>
>
> We mostly use "FileAppender" and/or RollingFileAppender.
> We have a debug level on certain logger just to be sure we'll be able to analyse what's goign wrong in case of an error.
> This cause huge amount of logs and slow down our application.
> It would be nice to combine CyclicBufferTracker (like in SMTPAppender) and FileAppender to be able to get only the n last lines before and error event occurs.
> I create a POC and end up to the conclusion that 50 % performance improvement  (with the last 1000 lines).
> I would like to send you the POC but I can't upload here.
> Sample conf :
> <configuration>
> <appender name="FILE" class="fr.opensagres.CyclicBufferFileAppender">
>     <file>testFile.log</file>
>     <append>true</append>
>   
>     <encoder>
>       <pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
>     </encoder>
>      <cyclicBufferTracker class="ch.qos.logback.core.spi.CyclicBufferTrackerImpl">
>    
>       <bufferSize>1000</bufferSize>
>     </cyclicBufferTracker>
>   </appender>
>   <root level="DEBUG">
>     <appender-ref ref="FILE" />
>   </root>
> </configuration>
> regards

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