docs: public static void loggerInit(Level level, boolean isRedirectStdOutErr, String format)
        throws IOException {
      // Set the java util logging format
      setLoggingFormat(format);
  
      // Configure the root logger and its handlers so that all the
      // derived loggers will inherit the properties
      Logger rootLogger = Logger.getLogger("");
      for (Handler handler : rootLogger.getHandlers()) {
        handler.setLevel(level);
      }
  
      rootLogger.setLevel(level);
  
      if (rootLogger.getLevel().intValue() < Level.WARNING.intValue()) {
        // zookeeper logging scares me. if people want this, we can patch to config-drive this
        Logger.getLogger("org.apache.zookeeper").setLevel(Level.WARNING);
      }
  
      // setting logging for http client to be error level
      System.setProperty(
          "org.apache.commons.logging.Log", "org.apache.commons.logging.impl.SimpleLog");
      System.setProperty(
          "org.apache.commons.logging.simplelog.log.httpclient.wire", "ERROR");
      System.setProperty(
          "org.apache.commons.logging.simplelog.log.org.apache.http", "ERROR");
      System.setProperty(
          "org.apache.commons.logging.simplelog.log.org.apache.http.headers", "ERROR");
  
      if (isRedirectStdOutErr) {
  
        // Remove ConsoleHandler if present, to avoid StackOverflowError.
        // ConsoleHandler writes to System.err and since we are redirecting
        // System.err to Logger, it results in an infinite loop.
        for (Handler handler : rootLogger.getHandlers()) {
          if (handler instanceof ConsoleHandler) {
            rootLogger.removeHandler(handler);
          }
        }
  
        // now rebind stdout/stderr to logger
        Logger logger;
        LoggingOutputStream los;
  
        logger = Logger.getLogger("stdout");
        los = new LoggingOutputStream(logger, StdOutErrLevel.STDOUT);
        System.setOut(new PrintStream(los, true));
  
        logger = Logger.getLogger("stderr");
        los = new LoggingOutputStream(logger, StdOutErrLevel.STDERR);
        System.setErr(new PrintStream(los, true));
      }
    }