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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