Shuo Huang created HDDS-16232:
---------------------------------

             Summary: Document how to enable Jersey debug logs in S3 Gateway
                 Key: HDDS-16232
                 URL: https://issues.apache.org/jira/browse/HDDS-16232
             Project: Apache Ozone
          Issue Type: Improvement
            Reporter: Shuo Huang


After HDDS-8096, S3 Gateway redirects JUL records to SLF4J through 
SLF4JBridgeHandler.

JUL checks the log level before a record reaches SLF4JBridgeHandler. Since the 
JUL root logger remains at INFO, setting only:

log4j.logger.org.glassfish.jersey=DEBUG

does not enable Jersey debug logs.

Update ozone-site's "Enabling Debug Logs for Services" section to explain that 
both the JUL level and the log4j logger level must allow the records. Include a 
working S3 Gateway/Jersey configuration example.

References:
- HDDS-8096
- https://github.com/apache/ozone/pull/11005
- 
https://ozone.apache.org/docs/administrator-guide/configuration/logging/application-logs/#enabling-debug-logs-for-services



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