[LOG4J2-1928] RollingRandomAccessFileAppender with DirectWriteRolloverStrategy requires a fileName

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.1
• Fix Version/s: 2.9.0
• Assignee: Ralph Goers
• Reporter: Lucas Ventura Carro
• Created: 01/Jun/17 13:32
• Updated: 08/Sep/17 10:11
• Resolved: 24/Aug/17 16:45

Description

Following the docs about RollingRandomAccessFileAppender with a DirectWrite rollover, the config should be:

<RollingRandomAccessFile append="true" filePattern="application.log.%i" name="json-log">
    <filters>
        <ThresholdFilter level="INFO" onMatch="ACCEPT" onMismatch="DENY"/>
    </filters>
	<PatternLayout>
		<Pattern>%m%n</Pattern>
	</PatternLayout>
    <Policies>
        <SizeBasedTriggeringPolicy size="10 MB"/>
    </Policies>
    <DirectWriteRolloverStrategy maxFiles="10"/>
</RollingRandomAccessFile>

But then console shows:

2017-06-01 14:31:04,396 main ERROR No filename was provided for FileAppender with name json-log
2017-06-01 14:31:04,406 main ERROR Null object returned for RollingRandomAccessFile in appenders.
2017-06-01 14:31:04,417 main ERROR Unable to locate appender "json-log" for logger config "root"

If adding a fileName parameter, the logger can be used but the file is not rolling (same as LOG4J2-1906).