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