- [Load Balancing](#load-balancing)
    - [**Node Components**](#node-components)
      - [Container Runtime Interface](#container-runtime-interface)
    - [**Scheduling**](#scheduling-1)
      - [Scheduler Extender](#scheduler-extender)
    - [**Storage**](#storage-1)
      - [Local Storage](#local-storage)
      - [Volume Plugins](#volume-plugins)
      - [Metrics](#metrics)

              return@withLock false
            }
          }
        if (failDueToMissingPong) {
          failConnection(null)
          return@schedule -1L
        } else {
          writePing(false, INTERVAL_PING, 0)
          return@schedule pingIntervalNanos
        }
      }
    }
  }

  /**
   * Returns the number of [open streams][Http2Stream.isOpen] on this connection.
   */

    if (plan is FailedPlan) return plan.result

    // Connect TCP asynchronously.
    tcpConnectsInFlight += plan
    val taskName = "$okHttpName connect ${routePlanner.address.url.redact()}"
    taskRunner.newQueue().schedule(
      object : Task(taskName) {
        override fun runOnce(): Long {
          val connectResult =
            try {
              plan.connectTcp()
            } catch (e: Throwable) {

 *     implements {@code SuccessorsFunction}, which has a similar API as {@link #children} or can be
 *     the same lambda function as passed into {@link #using(Function)}.
 *     <p>This class is scheduled to be removed in October 2019.
 */
// TODO(b/68134636): Remove by 2019-10
@Deprecated
@Beta
@GwtCompatible
public abstract class TreeTraverser<T> {
  /** Constructor for use by subclasses. */

            .build()

        val startNanos = System.nanoTime()
        val call = client.newCall(request)

        // Schedule a job to cancel the call in 1 second.
        executor.schedule({
          System.out.printf("%.2f Canceling call.%n", (System.nanoTime() - startNanos) / 1e9f)
          call.cancel()

                      return Thread.currentThread().getStackTrace().length;
                    }
                  },
                  directExecutor()));
        } else {
          // Otherwise, schedule a task on directExecutor
          unused =
              serializer.submit(
                  new Callable<@Nullable Void>() {
                    @Override
                    public @Nullable Void call() {

- 管理 UI: http://localhost:8080/admin/ （默认用户名/密码为 admin/admin）

![Admin UI](https://fess.codelibs.org/_images/fess_admin_dashboard.png)

您可以在管理 UI 的 (Web、文件、数据存储) 爬虫配置页面中注册爬取目标，然后在 [调度器页面](https://fess.codelibs.org/14.17/admin/scheduler-guide.html)手动启动爬虫。

## 从其他搜索提供商迁移

请参阅 [MIGRATION.md](MIGRATION.md)。

## 数据存储

当前，Fess 支持抓取以下[存储位置和 API](https://fess.codelibs.org/14.17/admin/dataconfig-guide.html)：

        verifyPathPattern("AdminReqheader", "/admin/reqheader/");
        verifyPathPattern("AdminRole", "/admin/role/");
        verifyPathPattern("AdminScheduler", "/admin/scheduler/");
        verifyPathPattern("AdminUser", "/admin/user/");
        verifyPathPattern("AdminWebauth", "/admin/webauth/");
        verifyPathPattern("AdminWebconfig", "/admin/webconfig/");
    }

## Migration depuis un autre fournisseur de recherche

Veuillez consulter [MIGRATION.md](MIGRATION.md).

## Data Store

Você pode registrar alvos de rastreamento na interface de administração nas páginas de configuração do rastreador (Web, Arquivo, Data Store), e iniciar manualmente o rastreador na [página do Agendador](https://fess.codelibs.org/14.17/admin/scheduler-guide.html).

## Migração de Outro Provedor de Busca

Consulte [MIGRATION.md](MIGRATION.md).

## Data Store