resyncTimer := time.NewTimer(resyncTimeInterval)
	defer resyncTimer.Stop()

	// For each bucket name, store the last timestamp of the
	// successful save of replication status in the backend disks.
	lastResyncStatusSave := make(map[string]time.Time)

	for {
		select {
		case <-resyncTimer.C:
			s.RLock()
			for bucket, brs := range s.statusMap {
				var updt bool

您可以在[Full Stack FastAPI Template](https://fastapi.tiangolo.com/zh/project-generation/)的模板中找到一个 FastAPI 项目中的 Alembic 示例。具体在[`alembic`代码目录中](https://github.com/tiangolo/full-stack-fastapi-template/tree/master/backend/app/alembic)。

### 创建依赖项

现在使用我们在`sql_app/database.py`文件中创建的`SessionLocal`来创建依赖项。

我们需要每个请求有一个独立的数据库会话/连接（`SessionLocal`），在整个请求中使用相同的会话，然后在请求完成后关闭它。

然后将为下一个请求创建一个新会话。

HSPLokhttp3/internal/concurrent/TaskRunner$runnable$1;->run()V
HSPLokhttp3/internal/concurrent/TaskRunner;-><clinit>()V
HSPLokhttp3/internal/concurrent/TaskRunner;-><init>(Lokhttp3/internal/concurrent/TaskRunner$Backend;Ljava/util/logging/Logger;I)V
HSPLokhttp3/internal/concurrent/TaskRunner;->access$runTask(Lokhttp3/internal/concurrent/TaskRunner;Lokhttp3/internal/concurrent/Task;)V

* Add orphaning finalizer logic to GC ([#25599](https://github.com/kubernetes/kubernetes/pull/25599), [@caesarxuchao](https://github.com/caesarxuchao))
* GCI-backed masters mount srv/kubernetes and srv/sshproxy in the right place ([#26238](https://github.com/kubernetes/kubernetes/pull/26238), [@ihmccreery](https://github.com/ihmccreery))

     * {@code ImmutableMap.Builder}.
     *
     * @since 31.1
     */
    public ImmutableMap<K, V> buildKeepingLast() {
      return build(false);
    }

    @VisibleForTesting // only for testing JDK backed implementation
    ImmutableMap<K, V> buildJdkBacked() {
      checkState(
          valueComparator == null, "buildJdkBacked is only for testing; can't use valueComparator");
      switch (size) {
        case 0:

  optional int64 limitBytes = 8;

  // insecureSkipTLSVerifyBackend indicates that the apiserver should not confirm the validity of the
  // serving certificate of the backend it is connecting to.  This will make the HTTPS connection between the apiserver
  // and the backend insecure. This means the apiserver cannot verify the log data it is receiving came from the real

  
  As this code is still very new, it has not been heavily optimized yet;
  while it is expected to _eventually_ have better performance than the
  iptables backend, very little performance testing has been done so far. ([#121046](https://github.com/kubernetes/kubernetes/pull/121046), [@danwinship](https://github.com/danwinship))

 *     Ordering.natural()
 *         .nullsFirst()
 *         .onResultOf(getBarFunction)
 *         .nullsLast();
 * }</pre>
 *
 * Note that each chaining method returns a new ordering instance which is backed by the previous
 * instance, but has the chance to act on values <i>before</i> handing off to that backing instance.
 * As a result, it usually helps to read chained ordering expressions <i>backwards</i>. For example,

fronted by an L7 load balancer that already mitigates these http/2 attacks may choose not to enable the kube-apiserver mitigation to avoid disrupting load balancer → kube-apiserver connections if http/2 requests from multiple clients share the same backend connection. An API server on a private network may choose not to enable the kube-apiserver mitigation to prevent performance regressions for unauthenticated clients. Authenticated requests rely on the fix in golang.org/x/net v0.17.0 alone. https:...

// deleted/overwritten version. This version is visible _only_to the scanner routine, for subsequent deletion.
// This kind of tracking is necessary since a version's tiered content is deleted asynchronously.

// Backend directory tree structure:
// disk1/
// └── bucket
//     └── object
//         ├── a192c1d5-9bd5-41fd-9a90-ab10e165398d
//         │   └── part.1
//         ├── c06e0436-f813-447e-ae5e-f2564df9dfd4