# Cluster Metrics

MinIO collects the following metrics at the cluster level.
Metrics may include one or more labels, such as the server that calculated that metric.

These metrics can be obtained from any MinIO server once per collection by using the following URL:

```shell
https://HOSTNAME:PORT/minio/v2/metrics/cluster
```

Replace ``HOSTNAME:PORT`` with the hostname of your MinIO deployment.

  <<<project/scm/@child.scm.url.inherit.append.path>>>.

  []

* Model Interpolation

  Model Interpolation consists in replacing <<<$\{...\}>>> with calculated value. It is done in <<<StringVisitorModelInterpolator>>>
  ({{{./apidocs/org/apache/maven/model/interpolation/StringVisitorModelInterpolator.html}javadoc}},

   * unless the user is actually calling a parse method.
   */
  private static final class ParseOverflowDetection {
    private ParseOverflowDetection() {}

    // calculated as 0xffffffffffffffff / radix
    static final long[] maxValueDivs = new long[Character.MAX_RADIX + 1];
    static final int[] maxValueMods = new int[Character.MAX_RADIX + 1];

			if !readStart && cumulativeSum+v > skipLen {
				// Read starts at the current part
				readStart = true

				partOffset = skipLen - cumulativeSum

				// All return values except `l` are
				// calculated here.
				sn = uint32(partOffset / pkgSz)
				skip = partOffset % pkgSz
				ps = i
				o = cumulativeEncSum + int64(sn)*(pkgSz+32)

				partDarePkgOffset = partOffset - skip
			}
			if readStart {

	disableMD5    bool

	// Server side computed checksum. In some cases, like CopyObject, a new checksum
	// needs to be computed and saved on the destination object, but the client
	// does not provide it. Not calculated if client-side contentHash is set.
	ServerSideChecksumType   ChecksumType
	ServerSideHasher         hash.Hash
	ServerSideChecksumResult *Checksum

	trailer http.Header

	sha256 hash.Hash
}

	// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

	// Verify if signature match.
	if !compareSignatureV4(newSignature, signV4Values.Signature) {
		return cred, "", "", time.Time{}, ErrSignatureDoesNotMatch
	}

	// Return calculated signature.
	return cred, newSignature, region, date, ErrNone
}

    assertThrows(
        IllegalArgumentException.class,
        () -> Traverser.forGraph(createDirectedGraph()).breadthFirst('a'));
  }

  /**
   * Checks that the elements of the iterable are calculated on the fly. Concretely, that means that
   * {@link SuccessorsFunction#successors(Object)} can only be called for a subset of all nodes.
   */
  @Test
  public void forGraph_breadthFirstIterable_emptyGraph() {

  }

  public void testScale_indexes_varargs_compute_doubleCollection_snapshotsIndexes() {
    // This test is the same as testScale_indexes_varargs_compute_doubleCollection except that the
    // array of indexes to be calculated is modified between the calls to indexes and compute: since
    // the contract is that it is snapshotted, this shouldn't make any difference to the result.
    int[] indexes = {0, 10, 5, 1, 8, 10};

  }

  public void testScale_indexes_varargs_compute_doubleCollection_snapshotsIndexes() {
    // This test is the same as testScale_indexes_varargs_compute_doubleCollection except that the
    // array of indexes to be calculated is modified between the calls to indexes and compute: since
    // the contract is that it is snapshotted, this shouldn't make any difference to the result.
    int[] indexes = {0, 10, 5, 1, 8, 10};

        int commentOffset = serverNameSize + versionSize + typeSize + offsetSize;
        SMBUtil.writeInt4(commentOffset, buffer, bufferIndex);
        bufferIndex += 4;

        // Write comment at the calculated offset
        byte[] commentBytes = comment.getBytes(StandardCharsets.US_ASCII);
        System.arraycopy(commentBytes, 0, buffer, commentOffset, commentBytes.length);