## Decoding Metadata

Metadata is stored in `xl.meta` files for erasure coded objects. Each disk in the set containing the object has this file. The file format is a binary format and therefore requires tools to view values.

### Installing xl-meta

To install, [Go](https://golang.org/dl/) must be installed. Once installed, execute this to install the binary:

```bash
go install github.com/minio/minio/docs/debugging/xl-meta@latest

        String scriptType = "test";
        String script = "test script";
        Object result = jobExecutor.execute(scriptType, script);
        assertEquals("Executed: test test script", result);

        // Test with null values
        result = jobExecutor.execute(null, "script");
        assertEquals("Executed: null script", result);

        result = jobExecutor.execute("type", null);
        assertEquals("Executed: type null", result);

			header: http.Header{
				"x-amz-meta-appid": []string{"amz-meta"},
			},
			metadata: map[string]string{
				"x-amz-meta-appid": "amz-meta",
			},
			shouldFail: false,
		},
		// Support multiple values
		{
			header: http.Header{
				"x-amz-meta-key": []string{"amz-meta1", "amz-meta2"},
			},
			metadata: map[string]string{
				"x-amz-meta-key": "amz-meta1,amz-meta2",
			},
			shouldFail: false,

    ): String? {
      var low = 0
      var high = size
      var match: String? = null
      while (low < high) {
        var mid = (low + high) / 2
        // Search for a '\n' that marks the start of a value. Don't go back past the start of the
        // array.
        while (mid > -1 && this[mid] != '\n'.code.toByte()) {
          mid--
        }
        mid++

        // Now look for the ending '\n'.

          }
          return c;
        }
        return super.loadClass(name);
      }
    };
  }

  private static boolean isJava8() {
    return JAVA_SPECIFICATION_VERSION.value().equals("1.8");
  }

    //    second thread can then dispatch to the subscriber it took before the first thread does.
    //
    // All this makes me really wonder if there's any value in queueing here at all. A dispatcher
    // that simply loops through the subscribers and dispatches the event to each would actually
    // probably provide a stronger order guarantee, though that order would obviously be different

    ignoreIoExceptions {
      shutdown(connectionCode)
    }

    var streamsToClose: Array<Http2Stream>? = null
    withLock {
      if (streams.isNotEmpty()) {
        streamsToClose = streams.values.toTypedArray()
        streams.clear()
      }
    }

    streamsToClose?.forEach { stream ->
      ignoreIoExceptions {
        stream.close(streamCode, cause)
      }
    }

        .build()
    val certificate = heldCertificate.certificate
    assertThat(certificate.getSubjectX500Principal().name).isEqualTo(
      "CN=cash.app,OU=cash",
    )
  }

  /** Confirm golden values of encoded PEMs.  */
  @Test
  fun pems() {
    val keyFactory = KeyFactory.getInstance("RSA")
    val publicKeyBytes =
      (
        "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCApFHhtrLan28q+oMolZuaTfWBA0V5aM" +

    /**
     * Array of NT status message strings corresponding to NT status codes.
     * These messages provide human-readable descriptions for various NT status values.
     */
    String[] NT_STATUS_MESSAGES = { "The operation completed successfully.", "A device attached to the system is not functioning.",

with 200 drives per node would continue serving files, up to 4 servers can be offline in default configuration i.e around 800 drives down MinIO would continue to read and write objects.

Refer to sizing guide for more understanding on default values chosen depending on your erasure stripe size [here](https://github.com/minio/minio/blob/master/docs/distributed/SIZING.md). Parity settings can be changed using [storage classes](https://github.com/minio/minio/tree/master/docs/erasure/storage-class)....