Hello Jeremy,

You mention a size-based policy, but I only see a time-based policy in your config.

The following patterns should work for RollingFileAppender. The code snippets are based on the code you pasted, and I did not test them. Please let me know if they work for you.

-Tony

Size-and-time-based rollover [1]

• rolling policy = new TimeBasedRollingPolicy()
  
• TimeBasedRollingPolicy.timeBasedFileNamingAndTriggeringPolicy = new SizeAndTimeBasedFNATP()
• trigger policy = do not set (already handled by TimeBasedRollingPolicy)

Code:

    TimeBasedRollingPolicy<ILoggingEvent> rollingPolicy = new TimeBasedRollingPolicy<ILoggingEvent>();

    rollingPolicy.setMaxHistory(2);

    rollingPolicy.setFileNamePattern(fileDirectory + "/log.%d.txt");

    rollingPolicy.setParent(rollingFileAppender);

    rollingPolicy.setContext(loggerContext);

    // size-and-time-based rollover (5MB files).

    // We don't need to set this triggering policy's context or start

    // it because RollingFileAppender.start() does all that for us.

    // SizeAndTimeBasedFNATP.start() is relatively expensive, so do it

    // only once if we can avoid it.

    SizeAndTimeBasedFNATP<ILoggingEvent> triggerPolicy = new SizeAndTimeBasedFNATP<ILoggingEvent>();

    triggerPolicy.setMaxFileSize("5MB");

    rollingPolicy.setTimeBasedFileNamingAndTriggeringPolicy(triggerPolicy);

    rollingPolicy.start();

Size-based rollover [2]

• rolling policy = new FixedWindowRollingPolicy()
  
• trigger policy = new SizeBasedTriggeringPolicy()

Code:

    // size-based rollover (fixed window of 3 files, 5MB each)

    FixedWindowRollingPolicy rollingPolicy2 = new FixedWindowRollingPolicy();

    rollingPolicy2.setContext(loggerContext);

    rollingPolicy2.setFileNamePattern("foo.%i.log");

    rollingPolicy2.setMinIndex(1);

    rollingPolicy2.setMaxIndex(3);

    rollingPolicy2.start();

    // size-based rollover needs a triggering policy

    SizeBasedTriggeringPolicy<ILoggingEvent> triggerPolicy2 = new SizeBasedTriggeringPolicy<ILoggingEvent>();

    triggerPolicy2.setContext(loggerContext);

    triggerPolicy2.setMaxFileSize("5MB");

    triggerPolicy2.start();

[1] http://logback.qos.ch/manual/appenders.html#SizeAndTimeBasedFNATP

[2] http://logback.qos.ch/manual/appenders.html#SizeBasedTriggeringPolicy

On Wed, May 14, 2014 at 8:53 PM, Jeremy Kane <jkane001@gmail.com> wrote:

I've been trying to get the rollinglogfileappender to roll-over at a certain file size, but I've had no luck.  I can get it to roll over at midnight each night, but I still would prefer to either combine them or have it just be file-size limited.

My config is such:

// Rolling Log Appender

String fileDirectory = KanetikApplication.getFileDirectory(context);

RollingFileAppender<ILoggingEvent> rollingFileAppender = new RollingFileAppender<ILoggingEvent>();

rollingFileAppender.setContext(loggerContext);

rollingFileAppender.setAppend(true);

rollingFileAppender.setFile(fileDirectory + "/log.txt");

TimeBasedRollingPolicy<ILoggingEvent> rollingPolicy = new TimeBasedRollingPolicy<ILoggingEvent>();

rollingPolicy.setMaxHistory(2);

rollingPolicy.setFileNamePattern(fileDirectory + "/log.%d.txt");

rollingPolicy.setParent(rollingFileAppender);

rollingPolicy.setContext(loggerContext);

rollingPolicy.start();

rollingFileAppender.setRollingPolicy(rollingPolicy);

PatternLayoutEncoder fileEncoder = new PatternLayoutEncoder();

fileEncoder.setContext(loggerContext);

fileEncoder.setPattern("%d{h:mm:ss} %level - %msg%n");

fileEncoder.start();

rollingFileAppender.setEncoder(fileEncoder);

rollingFileAppender.start();

// LogCat Appender

PatternLayoutEncoder logcatEncoder = new PatternLayoutEncoder();

logcatEncoder.setContext(loggerContext);

logcatEncoder.setPattern("%msg%n");

logcatEncoder.start();

PatternLayoutEncoder tagEncode = new PatternLayoutEncoder();

tagEncode.setContext(loggerContext);

tagEncode.setPattern(tag);

tagEncode.start();

LogcatAppender logcatAppender = new LogcatAppender();

logcatAppender.setContext(loggerContext);

logcatAppender.setEncoder(logcatEncoder);

logcatAppender.setTagEncoder(tagEncode);

logcatAppender.start();

// add the newly created appenders to the root logger;

// qualify Logger to disambiguate from org.slf4j.Logger

ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);

root.setLevel(level);

root.addAppender(rollingFileAppender);

root.addAppender(logcatAppender);

Can anyone tell me why it's not working?

Thanks!

J

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