return false, fmt.Errorf("Unlock attempted on a read locked entity: %s (%d read locks active)", args.Resources[0], locksHeld)
	}
	delete(l.lockMap, args.Resources[0]) // Remove the write lock
	return true, nil
}

const ReadLock = 1

func (l *lockServer) RLock(args *LockArgs) (reply bool, err error) {
	if d := atomic.LoadInt64(&l.responseDelay); d != 0 {

			<DefaultRolloverStrategy fileIndex="max" min="1"
				max="${backup.max.history}" compressionLevel="9" />
		</RollingFile>
		<Rewrite name="AppFile">
			<AppenderRef ref="AppRollingFile" />
			<ErrorToWarnRewritePolicy loggers="org.apache.fontbox,org.apache.pdfbox,org.apache.poi" />
		</Rewrite>
		<RollingFile name="StatsFile" fileName="${log.file.basedir}/fess-urls.log"
			filePattern="${log.file.basedir}/fess-urls${backup.date.suffix}-%i.log.gz">

release=$(git describe --abbrev=0 --tags)

docker buildx build --push --no-cache \
	--build-arg RELEASE="${release}" \
	-t "minio/minio:latest" \
	-t "quay.io/minio/minio:latest" \
	-t "minio/minio:${release}" \
	-t "quay.io/minio/minio:${release}" \
	--platform=linux/arm64,linux/amd64,linux/ppc64le \
	-f Dockerfile.release .

docker buildx prune -f

docker buildx build --push --no-cache \

				break
			}
		}
	}

	if len(checkHeader) != 0 {
		logKeys := make([]string, 0, len(checkHeader))
		for key := range checkHeader {
			logKeys = append(logKeys, key)
		}
		return fmt.Errorf("Each form field that you specify in a form must appear in the list of policy conditions. %q not specified in the policy.", strings.Join(logKeys, ", "))
	}

	return nil

			lm.ref = 1
			lm.isWriteLock = true
			locked = true
		}
	} else {
		if !lm.isWriteLock {
			lm.ref++
			locked = true
		}
	}

	return locked
}

const (
	lockRetryInterval = 50 * time.Millisecond
)

// lockLoop will acquire either a read or a write lock
//
// The call will block until the lock is granted using a built-in
// timing randomized back-off algorithm to try again until successful

x-minio-common: &minio-common
  image: quay.io/minio/minio:${RELEASE}
  command: server http://site2-minio{1...4}/data{1...2}
  environment:
    - MINIO_PROMETHEUS_AUTH_TYPE=public
    - CI=true

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:
  site2-minio1:
    <<: *minio-common
    hostname: site2-minio1
    volumes:

// JoinLoaders - joins multiple loaders into a single loader. The returned
// loader will call each of the given loaders in order. If any of the loaders
// return an error, the returned loader will return that error.
func JoinLoaders(loaders ...MetricsLoaderFn) MetricsLoaderFn {
	return func(ctx context.Context, m MetricValues, c *metricsCache) error {
		for _, loader := range loaders {
			if err := loader(ctx, m, c); err != nil {

* 起動時の実行
* 再起動
* レプリケーション（実行中のプロセス数）
* メモリー
* 開始前の事前のステップ


## コンテナとDocker
<!-- NOTE: the current version of docker.md is outdated compared to English one.  -->
次章の[コンテナ内のFastAPI - Docker](docker.md){.internal-link target=_blank}では、その他の**デプロイのコンセプト**を扱うために実施するであろう戦略をいくつか紹介します。

また、**GunicornとUvicornワーカー**を含む**公式Dockerイメージ**と、簡単なケースに役立ついくつかのデフォルト設定も紹介します。

## 구니콘을 유비콘 워커와 함께 실행하기

설치 후 구니콘 실행하기:

<div class="termy">

```console
$ gunicorn main:app --workers 4 --worker-class uvicorn.workers.UvicornWorker --bind 0.0.0.0:80

[19499] [INFO] Starting gunicorn 20.1.0
[19499] [INFO] Listening at: http://0.0.0.0:80 (19499)
[19499] [INFO] Using worker: uvicorn.workers.UvicornWorker
[19511] [INFO] Booting worker with pid: 19511
[19513] [INFO] Booting worker with pid: 19513

/// info | "Informação"

Se você estiver usando contêineres, por exemplo com Docker ou Kubernetes, falarei mais sobre isso no próximo capítulo: [FastAPI em contêineres - Docker](docker.md){.internal-link target=_blank}.