[LOG4J2-3576] How to configure writing to multiple Appenders in log4j2?

• Type: Question
• Status: Closed
• Priority: Major
• Resolution: Information Provided
• Affects Version/s: 2.17.1
• Component/s: Appenders
• Assignee: Unassigned
• Reporter: Mee
• Created: 18/Aug/22 02:38
• Updated: 24/Aug/22 17:57
• Resolved: 18/Aug/22 14:52

Description

How to configure writing to multiple Appenders in log4j2?

Prior to log4j2

log4j.appender.FILE=org.apache.log4j.RollingFileAppender
log4j.appender.ELASTIC=com.my.ElasticSearchAppender
log4j.rootLogger=FILE,ELASTIC # Works

log4j2

appender.elastic.type=Elasticsearch
appender.elastic.name=elastic
appender.rolling.type=RollingFile
appender.rolling.name=rolling
rootLogger.appenderRef.root.ref=rolling,elastic # does not work
rootLogger.appenderRef.root.ref=rolling # works
rootLogger.appenderRef.root.ref=elastic # works

I get the below error.

Log4J Updater ERROR Unable to locate appender "rolling,elastic" for logger config "root"

Am I doing something wrong?