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
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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