Hello all,

I've got a question about the SizeAndTimeBasedRollingPolicy. What I would like to achieve is a guaranteed upper boundary for the disk space used by log files and archives. I was happy to find the related option "totalSizeCap" for SizeAndTimeBasedRollingPolicy which seemed to help, but it turns out that this cap is applied only to files older than the time-based rollover trigger (in my case, a new day). The same seems to be the case for "maxHistory", it doesn't constrain the count of files created on the current day. So it is possible that, in worst case, a lot of files are created and flush disk space.

Are there any ideas how to solve that? I read about FixedWindowRollingPolicy, but I need day based rollover. Here's my non-working approach so far:

<appender name="FILE_DEFAULT" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>events.log</file>
        <encoder><Pattern>${defaultPattern}</Pattern></encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
                <fileNamePattern>events_%d{yyyy-MM-dd}_%i.zip</fileNamePattern>
                <maxFileSize>1MB</maxFileSize>
                <maxHistory>5</maxHistory>
                <totalSizeCap>10MB</totalSizeCap>
        </rollingPolicy>
</appender>

I'm looking forward to any responses. Have a nice weekend!

Simon Erhardt
Senior Software Architect
Befine Solutions AG - The Cryptshare company