ASSERT_FALSE(GetAttrValue(feed, "missing", &attr_value, s));
  EXPECT_EQ(string("Operation 'feed' has no attr named 'missing'."),
            string(TF_Message(s)));

  // Make a constant oper with the scalar "3".
  TF_Operation* three = ScalarConst(3, graph, s);
  ASSERT_EQ(TF_OK, TF_GetCode(s)) << TF_Message(s);

  // Add oper.
  TF_Operation* add = Add(feed, three, graph, s);

            when(mockDeferredBuffer.dec_ndr_short()).thenReturn(0, 0, 0);

            // When: Decoding output
            message.decode_out(mockNdrBuffer);

            // Then: Should create sam instance
            assertNotNull(message.sam);
            assertEquals(10, message.resume_handle);
            assertEquals(5, message.num_entries);
            assertEquals(0, message.retval);
        }

      if (builder.client) {
        set(Settings.INITIAL_WINDOW_SIZE, OKHTTP_CLIENT_WINDOW_SIZE)
      }
    }

  /**
   * Settings we receive from the peer. Changes to the field are guarded by this. The instance is
   * never mutated once it has been assigned.
   */
  var peerSettings = DEFAULT_SETTINGS

  /** The bytes consumed and acknowledged by the application. */

		return
	}
	select {
	case <-GlobalContext.Done():
	case wrkr <- task:
	default:
		es.stats.missedExpiryTasks.Add(1)
	}
}

// globalExpiryState is the per-node instance which manages all ILM expiry tasks.
var globalExpiryState *expiryState

// newExpiryState creates an expiryState with buffered channels allocated for
// each ILM expiry task type.

//
//	need to update the entry then proceed to update
//
// -- If yes, check if the IP of entry matches local IP.
//
//	This means entry is for this instance.
//
// -- If IP of the entry doesn't match, this means entry is
//
//	for another instance. Log an error to console.
func initFederatorBackend(buckets []string, objLayer ObjectLayer) {
	if len(buckets) == 0 {
		return
	}

	// Get buckets in the DNS

## `SQLModel` 설치하기

먼저, [가상 환경](../virtual-environments.md){.internal-link target=_blank}을 생성하고 활성화한 다음, `sqlmodel`을 설치하세요:

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

## 단일 모델로 애플리케이션 생성하기

우선 단일 **SQLModel** 모델을 사용하여 애플리케이션의 가장 간단한 첫 번째 버전을 생성해보겠습니다.

이후 **다중 모델**을 추가하여 보안과 유연성을 강화할 것입니다. 🤓

### 모델 생성하기

		dstRecords, err = globalDNSConfig.Get(dstBucket)
		if err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}

		// Send PutObject request to appropriate instance (in federated deployment)
		core, rerr := getRemoteInstanceClient(r, getHostFromSrv(dstRecords))
		if rerr != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, rerr), r.URL)
			return
		}

}

var listCache sync.Map // map[string]listImports, keyed by contextName

// listSem is a semaphore restricting concurrent invocations of 'go list'. 'go
// list' has its own internal concurrency, so we use a hard-coded constant (to
// allow the I/O-intensive phases of 'go list' to overlap) instead of scaling
// all the way up to GOMAXPROCS.
var listSem = make(chan semToken, 2)

type semToken struct{}

    String ONLINE_HELP_BASE_LINK = "online.help.base.link";

    /** The key of the configuration. e.g. https://fess.codelibs.org/{lang}/{version}/install/install.html */
    String ONLINE_HELP_INSTALLATION = "online.help.installation";

    /** The key of the configuration. e.g. https://fess.codelibs.org/{lang}/eol.html */
    String ONLINE_HELP_EOL = "online.help.eol";

        for (int i = 0; i < num; i++) {
            Map<String, Object> source = Collections.singletonMap("content", "test");
            IndexRequestBuilder indexRequestBuilder = new IndexRequestBuilder(client, IndexAction.INSTANCE);
            indexRequestBuilder.setIndex(indexName).setId(String.valueOf(i)).setCreate(true).setSource(source);
            bulkRequestBuilder.add(indexRequestBuilder);
        }