[jira] [Created] (LOG4J2-2154) Support resetting log levels

["paladox (JIRA)" <ji...@apache.org>]

paladox created LOG4J2-2154:
-------------------------------

             Summary: Support resetting log levels
                 Key: LOG4J2-2154
                 URL: https://issues.apache.org/jira/browse/LOG4J2-2154
             Project: Log4j 2
          Issue Type: Bug
            Reporter: paladox


Hi, would it be possible to support resetting log levels please?

In log4j1.x we did the following

  private static void reset() throws MalformedURLException {
    for (Enumeration<Logger> logger = LogManager.getCurrentLoggers(); logger.hasMoreElements(); ) {
      logger.nextElement().setLevel(null);
    }

    String path = System.getProperty(JAVA_OPTIONS_LOG_CONFIG);
    if (Strings.isNullOrEmpty(path)) {
      PropertyConfigurator.configure(Loader.getResource(LOG_CONFIGURATION));
    } else {
      PropertyConfigurator.configure(new URL(path));
    }
  }

but in log4j2 setting null on log level results in null pointer when calling updateLogger().

Also there dosen't seem to be a good replacement for PropertyConfigurator.configure as everything else just resets back to results thus if you used java to create appenders or anything else it would be erased and would not be re added until you restarted the java application.

See https://gerrit-review.googlesource.com/#/c/gerrit/+/142811/



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