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From: "JavaTech (JIRA)" <jira@apache.org>
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Subject: [jira] [Created] (LOG4J2-520) RollingRandomAccessFile with Async
 Appender skip logs
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JavaTech created LOG4J2-520:
-------------------------------

             Summary: RollingRandomAccessFile with Async Appender skip logs
                 Key: LOG4J2-520
                 URL: https://issues.apache.org/jira/browse/LOG4J2-520
             Project: Log4j 2
          Issue Type: Bug
          Components: Appenders
    Affects Versions: 2.0-beta9
         Environment: JDK 1.6, Eclipse
            Reporter: JavaTech


I have written a sample code which will write DEBUG, INFO , WARN logs in a single flile, I have written a logs in FOR loop printing numbers from 1 to 99.
sometime it print numbers incomplete sequence, like 1 to 67, 1 to 89 etc.

log4j2.xml
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
	<Appenders>
		<RollingRandomAccessFile name="RollingRandomAccessFile"
			fileName="logs/app.log" filePattern="logs/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log"
			immediateFlush="false" append="true" ignoreExceptions="false">
			<PatternLayout>
				<Pattern>%d %-5p [%t] (%F:%L) - %m%n</Pattern>
			</PatternLayout>
			<Policies>
				<TimeBasedTriggeringPolicy />
				<SizeBasedTriggeringPolicy size="100KB"/>
			</Policies>
		</RollingRandomAccessFile>
		<Async name="ASYNC" includeLocation="true">
			<AppenderRef ref="RollingRandomAccessFile" />
		</Async>
	</Appenders>
	<Loggers>
		<Root level="debug" includeLocation="true">
			<AppenderRef ref="ASYNC" />
		</Root>
	</Loggers>
</Configuration>


Sample Java Code

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LoggerUtil {
	public static Logger logger = LoggerFactory.getLogger(LoggerUtil.class);
	public static void main(String[] args) {
		System.out.println("start");
		logger.debug("debug log");
		logger.info("info log");
		logger.error("error log");
		for(int i = 0; i < 99; i++) {
			logger.warn("{}",i);
			System.out.println("I : - " + i);
		}
		logger.error("finish printing logs");
		System.out.println("end");
		
	}
}




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