http://old.nabble.com/RollingFileAppender-with-compress----i-td31037552.html

When compression is used for FixedWindowRollingPolicy, with %i in the file name pattern, the log files are not renamed with %i before compression.

Resulting zip-files are created with appropriate rolled over names (%i). But all the log files inside those zip have a same name.

Configuration (non relevant elements removed before posting)

<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<File>logs/gateway.log</File>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<maxIndex>20</maxIndex>
<FileNamePattern>logs/gateway.log.%i.zip</FileNamePattern>
</rollingPolicy>
</appender>

Results

gateway.log.1.zip (with log file gateway.log.1)
gateway.log.2.zip (with log file gateway.log.1)
gateway.log.3.zip (with log file gateway.log.1)
...

Should have been

gateway.log.1.zip (with log file gateway.log.1)
gateway.log.2.zip (with log file gateway.log.2)
gateway.log.3.zip (with log file gateway.log.3)
....