code: public boolean isFaulty(String trackerName) {
      synchronized (this) {
        NodeUsageReport usageReport = usageReports.get(trackerName);
        return isDeadTracker(trackerName) || (usageReport != null &&
               (usageReport.getNumFailedConnections() > maxFailedConnections ||
                usageReport.getNumFailed() > maxFailures));
      }
    }
docs: Check if a tracker is faulty.
  @param trackerName The name of the tracker.
  @return A boolean indicating if the tracker is faulty.