greyp9 commented on PR #6300:
URL: https://github.com/apache/nifi/pull/6300#issuecomment-1224193543
> Thanks for the feedback regarding the Logback configuration @greyp9!
>
> I updated the Logback configuration to set `additivity="false"` for the
`deprecation` logger to avoid duplicating messages in `nifi-app.log`. I also
updated the `DEPRECATION_FILE` appender to set a maximum file size of 10 MB and
a maximum history of 10. Although the log could produce many duplicate
messages, this configuration limits the amount of space that could be consumed
in the default configuration.
Tried this out again. The additional config does not seem to be sufficient
to limit the deprecation logger output. This configuration seems to achieve
the intent:
```
<rollingPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>${org.apache.nifi.bootstrap.config.log.dir}/nifi-deprecation_%d.%i.log</fileNamePattern>
<maxFileSize>10MB</maxFileSize>
<maxHistory>10</maxHistory>
<totalSizeCap>100MB</totalSizeCap>
</rollingPolicy>
```
This may be a corner case, due to logback being fed logging events so
quickly.
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