[jira] [Created] (LOG4J2-1134) Possible to create Failover appender on first occurence

["Hüseyin Kartal (JIRA)" <ji...@apache.org>]

Hüseyin Kartal created LOG4J2-1134:
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             Summary: Possible to create Failover appender on first occurence
                 Key: LOG4J2-1134
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1134
             Project: Log4j 2
          Issue Type: Question
          Components: Appenders
    Affects Versions: 2.4
            Reporter: Hüseyin Kartal
            Priority: Minor
             Fix For: 2.4.1


Hi,

we use primary the SocketAppender to send log messages to a server instance. For failover purpose we defined a FailoverAppender with a RollingRandomAccessFileAppender as the failover instance.

Following the configuration:

{code:xml}
<?xml version="1.0" encoding="UTF-8"?>
<Configuration monitorInterval="0" strict="true" name="XMLConfig" status="fatal" shutdownHook="enable" xmlns="http://jakarta.apache.org/log4j2/config" xmlns:events="http://jakarta.apache.org/log4j2/events" xmlns:levels="http://jakarta.apache.org/log4j2/levels" xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jakarta.apache.org/log4j2/config Log4j-config.xsd http://jakarta.apache.org/log4j2/events Log4j-events.xsd http://jakarta.apache.org/log4j2/levels Log4j-levels.xsd">
	<xi:include href="log4j2-properties.xml" />
	<Appenders>
		<Appender type="Socket" name="OUT-SOCKET" host="${sys:log.host}" port="${sys:log.port}" protocol="${sys:log.protocol}" ignoreExceptions="false">
			<Layout type="JsonLayout" compact="true" eventEol="true" complete="true" properties="true" />
		</Appender>
		<Appender type="Failover" name="OUT-FAIL" primary="OUT-SOCKET">
			<Failovers>
				<Appender type="RollingRandomAccessFile" name="OUT-FILE" fileName="${file.name.tmp}${file.suffix}" filePattern="${file.name.tmp}-%2i${file.suffix}" ignoreExceptions="false">
					<Layout Type="PatternLayout" Pattern="${pattern.single}" />
					<Policies>
						<SizeBasedTriggeringPolicy size="${sizeBasedTriggeringPolicy.size}" />
					</Policies>
					<DefaultRolloverStrategy max="${defaultRolloverStrategy.max}" fileIndex="min" />
				</Appender>
			</Failovers>
		</Appender>
		<Async name="ASYNC-OUT-FAIL">
			<AppenderRef ref="OUT-FAIL" />
		</Async>
	</Appenders>
	<Loggers>
		<asyncRoot level="all">
			<AppenderRef ref="ASYNC-OUT-FAIL" />
		</asyncRoot>
		<asyncLogger name="com" level="error" />
		<asyncLogger name="org" level="error" />
		<asyncLogger name="javax" level="error" />
	</Loggers>
</Configuration>
{code}

Question: The appender OUT-FILE with the corresponding file is created on startup. Is it possible to create this file or the Appender only if a failover issue occurs?



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