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Posted to commits@nifi.apache.org by "Adam Taft (JIRA)" <ji...@apache.org> on 2015/05/27 06:58:17 UTC

[jira] [Created] (NIFI-634) Review Logback default log levels

Adam Taft created NIFI-634:
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             Summary: Review Logback default log levels
                 Key: NIFI-634
                 URL: https://issues.apache.org/jira/browse/NIFI-634
             Project: Apache NiFi
          Issue Type: Improvement
          Components: Configuration
            Reporter: Adam Taft
            Priority: Minor


Evaluate the default log levels of the logback.xml configuration. Consider reducing the verbosity of general framework logging events, primarily originating from the org.apache.nifi.* logger.

Rationale: the existing log level defaults have historically benefitted NIFI data flow managers needing to inspect and trace the lifecycle of an individual flowfile. However, given the capabilities of the provenance repository engine, the preferred mechanism for tracing a flowfile would now be performed through provenance inquiries.

Thus, the necessity for logging standard processor and framework subsystem events at the INFO level is reduced. The logging configuration could default to allow only WARN or greater output from common framework components in order to isolate and identify flow management issues.

Recommendation:  change the default log levels of the org.apache.nifi.* loggers from INFO to WARN, with exception for component functionality which does not readily have a reciprocal provenance equivalent.




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