David Handermann created NIFI-9483:
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Summary: Evaluate Addition of log4j-slf4j-impl
Key: NIFI-9483
URL: https://issues.apache.org/jira/browse/NIFI-9483
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Reporter: David Handermann
Assignee: David Handermann
Several extension components include transitive dependencies on Log4j 2. NiFi
uses the SLF4J API for logging in application code, and Logback as the runtime
implementation.
The Log4j 2 system supports SLF4J for runtime message routing, which would
ensure that all log messages route through SLF4J and Logback, as opposed to
falling back to the default Log4j 2 appender. Current extension components
should be evaluated to determine whether an explicit dependency on
log4j-slf4j-impl is necessary to ensure proper runtime log handling for
libraries that rely on the Log4j 2 API.
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