testRotate(new byte[] {1, 2}, -3, new byte[] {2, 1});
    testRotate(new byte[] {1, 2}, -1, new byte[] {2, 1});
    testRotate(new byte[] {1, 2}, -2, new byte[] {1, 2});
    testRotate(new byte[] {1, 2}, 0, new byte[] {1, 2});
    testRotate(new byte[] {1, 2}, 1, new byte[] {2, 1});
    testRotate(new byte[] {1, 2}, 2, new byte[] {1, 2});
    testRotate(new byte[] {1, 2}, 3, new byte[] {2, 1});

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

#!/bin/bash
set -xuo pipefail

temp_log_file=/tmp/fess-build.$$
unzip target/releases/fess-*.zip > ${temp_log_file} 2>&1
tail ${temp_log_file}

./fess-*/bin/fess > ${temp_log_file} 2>&1 &

temp_json_file=/tmp/fess-log.$$
touch ${temp_json_file}
error_count=0
while true ; do
  status=$(curl -w '%{http_code}\n' -s -o ${temp_json_file} "http://localhost:8080/api/v1/health")
  cat ${temp_json_file}
  if [[ x"${status}" = x200 ]] ; then

git
jq
less
libcurl3-dev
libcurl4-openssl-dev
libfreetype6-dev
libhdf5-serial-dev
libomp-18-dev
libssl-dev
libtool
libxml2-dev
libxslt1-dev
libzmq3-dev
mlocate
moreutils
openjdk-21-jdk
openjdk-21-jre-headless
openssl
parallel
patchelf
pkg-config
python3-dev
python3-setuptools
rsync
software-properties-common
sudo
swig
unzip
vim
wget
zip

  }

  public void testGetAndAdd() {
    Count holder = new Count(20);
    assertEquals(20, holder.get());
    holder.add(1);
    assertEquals(21, holder.get());
  }

  public void testAddAndGet() {
    Count holder = new Count(20);
    assertEquals(21, holder.addAndGet(1));
  }

  public void testGetAndSet() {
    Count holder = new Count(10);
    assertEquals(10, holder.getAndSet(20));

	"http://127.0.0.1:9002/tmp/multisitea/data/disterasure/xl{5...8}" >/tmp/sitea_1.log 2>&1 &
minio server --address 127.0.0.1:9002 "http://127.0.0.1:9001/tmp/multisitea/data/disterasure/xl{1...4}" \
	"http://127.0.0.1:9002/tmp/multisitea/data/disterasure/xl{5...8}" >/tmp/sitea_2.log 2>&1 &

minio server --address 127.0.0.1:9003 "http://127.0.0.1:9003/tmp/multisiteb/data/disterasure/xl{1...4}" \

    branches:
    - master
    - "*.x"

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
    - name: Set up JDK 21
      uses: actions/setup-java@v2
      with:
        java-version: '21'
        distribution: 'temurin'
    - uses: actions/cache@v1
      with:
        path: ~/.m2/repository
        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}

minio server --address ":9001" --console-address ":10000" /tmp/minio1/{1...4} >/tmp/minio1_1.log 2>&1 &
site1_pid=$!
export MINIO_IDENTITY_OPENID_REDIRECT_URI="http://127.0.0.1:11000/oauth_callback"
minio server --address ":9002" --console-address ":11000" /tmp/minio2/{1...4} >/tmp/minio2_1.log 2>&1 &
site2_pid=$!

export MINIO_IDENTITY_OPENID_REDIRECT_URI="http://127.0.0.1:12000/oauth_callback"

    Comparator<Optional<String>> unused = emptiesLast(naturalOrder());
  }

  public void testMinMaxNatural() {
    assertThat(min(1, 2)).isEqualTo(1);
    assertThat(min(2, 1)).isEqualTo(1);
    assertThat(max(1, 2)).isEqualTo(2);
    assertThat(max(2, 1)).isEqualTo(2);
  }

  public void testMinMaxNatural_equalInstances() {
    Foo a = new Foo(1);
    Foo b = new Foo(1);
    assertThat(min(a, b)).isSameInstanceAs(a);

    testRotate(new double[] {1, 2}, -3, new double[] {2, 1});
    testRotate(new double[] {1, 2}, -1, new double[] {2, 1});
    testRotate(new double[] {1, 2}, -2, new double[] {1, 2});
    testRotate(new double[] {1, 2}, 0, new double[] {1, 2});
    testRotate(new double[] {1, 2}, 1, new double[] {2, 1});
    testRotate(new double[] {1, 2}, 2, new double[] {1, 2});