I have a Struts application with log4j to display information about application.
The pattern to format log\'s output is as follows:
log4j.appender.RA
I implemented thread ID and thread priority for the upcoming 2.6. Tracking here: https://issues.apache.org/jira/browse/LOG4J2-1299
You can pick up a 2.6-SNAPSHOT build from the Apache snapshots repository: https://repository.apache.org/content/repositories/snapshots/