[LOG4J2-878] Failover appender throws "Error flushing stream //L-Computer1/test/logs/primary.log" at the time of retry, but the location is up

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 2.0.2
• Component/s: Appenders
• Labels: features

Environment

j2ee, spring, webservices, junit, log4j2
Currently in development and will be moved to production in a weeks time.

• Assignee: Unassigned
• Reporter: saran sundar
• Created: 21/Oct/14 15:17
• Updated: 07/Nov/16 16:15

Description

OS: Windows
Software platform: j2ee, spring, webservices, junit, log4j2
I want to make sure that the failover configuration works as expected.
I configured failover appender with two rolling file appenders. Primary rolling file appender configured to a shared folder in different computer. Secondary file appender pointing to my local file system. Once after i ran the junit program and the first debug statement printed, i removed the share location from the other computer in the network for the primary appender. As expected next debug statements ( i left thread.sleep(30000) in between each debug statement in junit program) were redirect to secondary file appender. However at the time of retry by failover appender , it tries to reconnect to the primary location which is up now (enabled the share location in different computer), but received following error..

2014-10-21 10:34:11,463 ERROR Unable to write to stream //L-Computer1/test/logs/primary.log for appender primeCompressedDaily
2014-10-21 10:34:11,463 ERROR An exception occurred processing Appender primeCompressedDaily org.apache.logging.log4j.core.appender.AppenderLoggingException: Error flushing stream //L-Computer1/test/logs/primary.log
	at org.apache.logging.log4j.core.appender.OutputStreamManager.flush(OutputStreamManager.java:159)
	at org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:108)
	at org.apache.logging.log4j.core.appender.RollingFileAppender.append(RollingFileAppender.java:86)
	at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:97)
	at org.apache.logging.log4j.core.appender.FailoverAppender.callAppender(FailoverAppender.java:117)
	at org.apache.logging.log4j.core.appender.FailoverAppender.append(FailoverAppender.java:109)
	at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:97)
	at org.apache.logging.log4j.core.appender.AsyncAppender$AsyncThread.callAppenders(AsyncAppender.java:288)
	at org.apache.logging.log4j.core.appender.AsyncAppender$AsyncThread.run(AsyncAppender.java:240)
Caused by: java.io.IOException: The specified network name is no longer available
	at java.io.FileOutputStream.writeBytes(Native Method)
	at java.io.FileOutputStream.write(FileOutputStream.java:318)
	at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
	at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
	at org.apache.logging.log4j.core.appender.OutputStreamManager.flush(OutputStreamManager.java:156)
	... 8 more

2014-10-21 10:39:31,484 ERROR Unable to write to stream //L-Computer1/test/logs/primary.log for appender primeCompressedDaily

log4j2.xml entries is given below,

<?xml version="1.0" encoding="UTF-8"?>
<!-- set status below to FATAL to suppress a bug in log4j2: "ERROR appender Failover has no parameter that matches element Failovers" -->
<!--  other working value for status is "warn" -  -->
<Configuration status="warn" name="log4j2" packages="com.ims.log4j">
	<Appenders>
	
		<Console name="stdout" target="SYSTEM_OUT" ignoreExceptions="false">
			<PatternLayout pattern="%d{ABSOLUTE} %1p %X{userinfo} %c{1}:%L - %m%n"/>
		</Console>
				
		<RollingFile name="compressedDaily" fileName="c:/installed/Tomcat-7.0.12/logs/secondary.log"
			filePattern="c:/installed/Tomcat-7.0.12/logs/secondary.log.%d{yyyy-MM-dd}.gz" ignoreExceptions="false">
			<PatternLayout>
				<Pattern>%d{ABSOLUTE} %1p %X{userinfo} %c{1}:%L - %m%n</Pattern>
			</PatternLayout>
			<Policies>
				<TimeBasedTriggeringPolicy/>
				<SizeBasedTriggeringPolicy/>
			</Policies>
		</RollingFile>
		
		<RollingFile name="primeCompressedDaily" fileName="//L-Computer1/test/logs/primary.log"
			filePattern="//L-Computer1/test/logs/primary.log.%d{yyyy-MM-dd}.gz" ignoreExceptions="false" >
			<PatternLayout>
				<Pattern>%d{ABSOLUTE} %1p %X{userinfo} %c{1}:%L - %m%n</Pattern>
			</PatternLayout>
			<Policies>
				<TimeBasedTriggeringPolicy/>
				<SizeBasedTriggeringPolicy/>
			</Policies>
		</RollingFile>
		
		<Failover name="FailoverAppender" primary="primeCompressedDaily" retryInterval="61" ignoreExceptions="false"> 
	      	<Failovers>
	      		<AppenderRef ref="compressedDaily" />
	      	</Failovers>
	    </Failover>
	    
	    <Async name="asyncCompressed">
		<AppenderRef ref="FailoverAppender" />
	    </Async>

            <Async name="asyncStdout">
		<AppenderRef ref="stdout" />
	    </Async>
	</Appenders>
	  	 	
 	<Loggers>
 		<Root level="trace">
      		<AppenderRef ref="asyncCompressed" level="trace"/>
      		<AppenderRef ref="asyncStdout" level="trace"/>
    	</Root>
 	
	    <Logger name="com.ims" level="debug" includeLocation="true" additivity="false">
	      <AppenderRef ref="asyncCompressed"/>
	    </Logger>
	    
	    <Logger name="org.apache.cxf.interceptor.LoggingInInterceptor" level="info" includeLocation="true" additivity="false">
	      <AppenderRef ref="asyncCompressed"/>
	    </Logger>
	    
	    <Logger name="org.apache.cxf.interceptor.LoggingOutInterceptor" level="info" includeLocation="true" additivity="false">
	      <AppenderRef ref="asyncCompressed"/>
	    </Logger>
 	
 		<Logger name="org.hibernate" level="error" includeLocation="true" additivity="false">
	      <AppenderRef ref="asyncCompressed"/>
	    </Logger>
 	
	    <Logger name="test.escalation" level="debug" includeLocation="true" additivity="false">
	      <AppenderRef ref="asyncCompressed"/>
	    </Logger>
	    
 	    <Logger name="org.apache.cxf" level="info" includeLocation="true" additivity="false">
	      <AppenderRef ref="asyncCompressed"/>
	    </Logger> 		
 	</Loggers>	
</Configuration>

Junit method

@Test
	public void log4jTest() throws Exception {

		System.out.println("log4j2 test");
		Thread.sleep(30000);
		log.error("debug-log4j2 test*1");
		Thread.sleep(60000);
		log.error("debug-log4j2 test*2");
		Thread.sleep(30000);
		System.out.println("debug-log4j2 test*3");
		Thread.sleep(70000);
		log.info("debug-log4j2 test*4");
		Thread.sleep(30000);
		log.debug("debug-log4j2 test*5");
		Thread.sleep(30000);
		log.debug("debug-log4j2 test*6");
		Thread.sleep(30000);
		log.debug("debug-log4j2 test*7");
		Thread.sleep(30000);
		log.debug("debug-log4j2 test*8");
		Thread.sleep(290000);
		log.debug("debug-log4j2 test*9");
		Thread.sleep(30000);
		log.debug("debug-log4j2 test*10");
		System.out.println("debug-log4j2 test*6");
	}

PS Please forgive if I wasn't narrate the problem properly. any quick help in this issue would be highly appreciated.