s.defaultWriteObject();
    s.writeLong(sum());
  }

  private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException {
    s.defaultReadObject();
    busy = 0;
    cells = null;
    base = s.readLong();
  }

      if (compareAndSet(currentRunner, blocker)) {
        // Thread.interrupt can throw arbitrary exceptions due to the nio InterruptibleChannel API
        // This will make sure that tasks don't get stuck busy waiting.
        // Some of this is fixed in jdk11 (see https://bugs.openjdk.org/browse/JDK-8198692) but
        // not all.  See the test cases for examples on how this can happen.
        try {

    
    public int getScore() {
        // Calculate channel score for load balancing
        int score = 100;
        
        // Adjust based on state
        if (state == ChannelState.ACTIVE) score -= 20;  // Busy channel
        if (state != ChannelState.ESTABLISHED && state != ChannelState.ACTIVE) return 0;
        
        // Adjust based on error rate
        double errorRate = getErrorRate();

//
//	Generic S3 HTTP handler errors.
//
// //////////////////////////////////////////////////////////////////////
func errBusy(err error) *s3Error {
	return &s3Error{
		code:       "Busy",
		message:    "The service is unavailable. Please retry.",
		statusCode: 503,
		cause:      err,
	}
}

func errUnauthorizedAccess(err error) *s3Error {
	return &s3Error{

   * requests become more likely to trigger expensive operations (a more extreme case of this
   * example is when a server has just booted, and it is mostly busy with getting itself up to
   * speed).
   *
   * To deal with such scenarios, we add an extra dimension, that of "past underutilization",

		readsAwait:        "Average time for read requests to be served on a drive",
		writesAwait:       "Average time for write requests to be served on a drive",
		percUtil:          "Percentage of time the disk was busy",
		usedBytes:         "Used bytes on a drive",
		totalBytes:        "Total bytes on a drive",
		usedInodes:        "Total inodes used on a drive",
		totalInodes:       "Total inodes on a drive",

                // Remove the waiter, one way or another we are done parking this thread.
                removeWaiter(node);
                break long_wait_loop; // jump down to the busy wait loop
              }
            }
          }
          oldHead = waitersField; // re-read and loop.
        } while (oldHead != Waiter.TOMBSTONE);
      }

                // Remove the waiter, one way or another we are done parking this thread.
                removeWaiter(node);
                break long_wait_loop; // jump down to the busy wait loop
              }
            }
          }
          oldHead = waitersField; // re-read and loop.
        } while (oldHead != Waiter.TOMBSTONE);
      }

type StorageFull struct{}

func (e StorageFull) Error() string {
	return "Storage reached its minimum free drive threshold."
}

// SlowDown  too many file descriptors open or backend busy .
type SlowDown struct{}

func (e SlowDown) Error() string {
	return "Please reduce your request rate"
}

// RQErrType reason for read quorum error.
type RQErrType int

const (

| `minio_node_drive_writes_await`      | Average time for write requests to be served on a drive. |
| `minio_node_drive_perc_util`         | Percentage of time the disk was busy since uptime.       |

## Network Interface Metrics

| Name                          | Description                                                |