core Issue 23631 create global log4j

Updated pull request from https://github.com/dotCMS/core/pull/23632 Issue #23631 Enable log configuration by setting environment variable USE_GLOBAL_LOG4J=true

Default logging config found in log4j2/conf/log4j2-tomcat.xml

bin/setclasspath.sh or bin/setclasspath.bat contains logic to setup

if [ "$USE_GLOBAL_LOG4J" = true ]; then echo Using Global Log4j CLASSPATH="$CATALINA_HOME/log4j2/lib/*:$CATALINA_HOME/log4j2/conf$CLASSPATH" JAVA_OPTS=" -DLog4jContextSelector=org.apache.logging.log4j.core.async.BasicAsyncLoggerContextSelector $JAVA_OPTS" JAVA_OPTS=" -Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager $JAVA_OPTS" fi

default Context selector creates a new context per Classloader and requires separate configuration for each. BasicContextSelection keeps the same context and configuration for all Classloaders, for each there is an Async version that makes all the loggers asynchronous and improves performance.

The log4j jars have been added to $CATALINA_HOME/log4j2/lib to support slf4j, commons-logging, Jul logging log4j 1. A log4j2-appserver jar is set up to replace the standard tomcat logging. Although the log4j2-appserver replaces the jul logging in tomcat directly Some plugin code uses java.util.logging and the LogManger needs to be set to pass this logging back to log4j.

By default the logfile is picked up from the classpath and found in CATALINA_HOME/log4j2/conf see

https://logging.apache.org/log4j/2.x/log4j-appserver/index.html

The log file could be specified with a jvm option -Dlog4j.configurationFile=path/to/log4j2.xml or map the file/folder in docker.

Read configuration guide https://logging.apache.org/log4j/2.x/manual/configuration.html on how to modify the config,https://logging.apache.org/log4j/2.x/manual/configuration.html It is currently set to only log to stdout. for docker.

Jan 31 '23 20:01 spbolton

Unit Tests Report

1 418 tests ±0 1 408 :heavy_check_mark: ±0 3m 47s :stopwatch: -15s   140 suites ±0     10 :zzz: ±0   140 files ±0       0 :x: ±0

Results for commit aa5f8668. ± Comparison against base commit adfff759.

:recycle: This comment has been updated with latest results.

Jan 31 '23 20:01 github-actions[bot]

Postman Tests Report

0 files -     54 0 suites - 733 0s :stopwatch: - 1h 31m 11s 0 tests -   362 0 :heavy_check_mark: -   361 0 :zzz: ±0 0 :x: - 1 0 runs - 1 118 0 :heavy_check_mark: - 1 113 0 :zzz: ±0 0 :x: - 5

Results for commit c0b488f2. ± Comparison against base commit 9d691ee9.

:recycle: This comment has been updated with latest results.

Jan 31 '23 20:01 github-actions[bot]

Integration Tests [postgres] Report

  408 files -   1   408 suites - 1 58m 59s :stopwatch: - 10m 16s 3 878 tests - 14 3 734 :heavy_check_mark: - 134 23 :zzz: ±0 121 :x: +120 3 900 runs - 13 3 755 :heavy_check_mark: - 134 23 :zzz: ±0 122 :x: +121

For more details on these failures, see this check.

Results for commit aa5f8668. ± Comparison against base commit adfff759.

:recycle: This comment has been updated with latest results.

Jan 31 '23 21:01 github-actions[bot]