panbingkun opened a new issue, #2337:
URL: https://github.com/apache/logging-log4j2/issues/2337
## Description
When we upgraded `log4j2` from version `2.22.1` to `2.23.0` in Spark, we
found that logs that could have been printed before are no longer being printed.
## Configuration
```
# This log4j config file is for integration test SparkConfPropagateSuite.
rootLogger.level = debug
rootLogger.appenderRef.stdout.ref = console
appender.console.type = Console
appender.console.name = console
appender.console.target = SYSTEM_ERR
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = %d{HH:mm:ss.SSS} %p %c:
%maxLen{%m}{512}%n%ex{8}%n
```
**Version:** [Log4j version]
2.23.0
**Operating system:** [OS and version]
ubuntu
**JDK:** [JDK distribution and version]
JDK 17
## Logs
```
[Stacktraces, errors, etc. relevant applications logs.]
```
## Reproduction
[An isolated test reproducing the test.
JUnit tests similar to the ones in the code base are extremely appreciated.]
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