* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.upgrade;

import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

Updates][major_versions].

This release obsoletes OkHttp 2.x, and all code that uses OkHttp's
`com.squareup.okhttp` package should upgrade to the `okhttp3` package. Libraries
that depend on OkHttp should upgrade quickly to prevent applications from being
stuck on the old version.

 *  **There is no longer a global singleton connection pool.** In OkHttp 2.x,

///

<details>
<summary>Развернуть Dockerfile 👀</summary>

```Dockerfile
FROM python:3.9

WORKDIR /code

COPY ./requirements.txt /code/requirements.txt

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

COPY ./app /code/app

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80"]

# Если используете прокси-сервер, такой как Nginx или Traefik, добавьте --proxy-headers

MinIO requires a 5.x series version of Elasticsearch. This is the latest major release series. Elasticsearch provides version upgrade migration guidelines [here](https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-upgrade.html).

### Step 2: Add Elasticsearch endpoint to MinIO

    * In order to safely upgrade an existing Kubernetes cluster without interruption of volume attach/detach logic:
        * First upgrade the master to Kubernetes v1.3.
            * This will start the new attach/detach controller.

		parityDrives = er.defaultParityCount
	}
	if opts.MaxParity {
		parityDrives = len(storageDisks) / 2
	}
	if !opts.MaxParity && globalStorageClass.AvailabilityOptimized() {
		// If we have offline disks upgrade the number of erasure codes for this object.
		parityOrig := parityDrives

		var offlineDrives int
		for _, disk := range storageDisks {
			if disk == nil || !disk.IsOnline() {
				parityDrives++