Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block
Date: Tue, 21 Jul 2020 00:36:14 GMT
```

### Cluster-readable probe

The reply is '200 OK' if cluster has read quorum if not it returns '503 Service Unavailable'.

```
curl http://minio1:9001/minio/health/cluster/read

		expectedErr  error
		expectedTime time.Time
		timeStr      string
	}
	testCases := []testCase{
		{
			ErrMalformedDate,
			time.Time{},
			"Tue Sep  6 07:10:23 PM PDT 2022",
		},
		{
			nil,
			time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC),
			"Tue, 10 Nov 2009 23:00:00 UTC",
		},
	}

	for _, testCase := range testCases {
		testCase := testCase
		t.Run(testCase.timeStr, func(t *testing.T) {

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2.2-beta-2-SNAPSHOT repo-assembly package single repo.xml test-extension true ${pom.basedir}/../../resources/org/apache/maven/extension true dummy file:///tmp/dummy-repo META-INF/maven/org.apache.maven.core.test/test-extension/pom.properties #Generated by Maven #Tue Oct 16 14:36:43 EDT 2007 version=1 groupId=org.apache.maven.core.test artifactId=test-extension...

2.2-beta-2-SNAPSHOT repo-assembly package single repo.xml test-extension true ${pom.basedir}/../../resources/org/apache/maven/extension true dummy file:///tmp/dummy-repo META-INF/maven/org.apache.maven.core.test/test-extension/pom.properties #Generated by Maven #Tue Oct 16 14:36:43 EDT 2007 version=1 groupId=org.apache.maven.core.test artifactId=test-extension...

2.2-beta-2-SNAPSHOT repo-assembly package single repo.xml test-extension true ${pom.basedir}/../../resources/org/apache/maven/extension true dummy file:///tmp/dummy-repo META-INF/maven/org.apache.maven.core.test/test-extension/pom.properties #Generated by Maven #Tue Oct 16 14:36:43 EDT 2007 version=1 groupId=org.apache.maven.core.test artifactId=test-extension...