fi.Erasure.Index = index + 1
			if fi.IsValid() {
				return disks[index].WriteMetadata(ctx, origbucket, bucket, prefix, fi)
			}
			return errFileCorrupt
		}, index)
	}

	// Wait for all the routines.
	mErrs := g.Wait()

	err := reduceWriteQuorumErrs(ctx, mErrs, objectOpIgnoredErrs, quorum)
	if err != nil && revert {
		ng := errgroup.WithNErrs(len(disks))
		for index := range disks {

				mu.Lock()
				if _, ok := healBuckets[volInfo.Name]; !ok {
					healBuckets[volInfo.Name] = volInfo
				}
				mu.Unlock()
			}
			return nil
		}, index)
	}
	return reduceReadQuorumErrs(ctx, g.Wait(), bucketMetadataOpIgnoredErrs, readQuorum)
}

var errLegacyXLMeta = errors.New("legacy XL meta")

var errOutdatedXLMeta = errors.New("outdated XL meta")

		wg.Add(1)
		go func(key int) {
			defer wg.Done()
			if err := batch.Add(testItem); err != nil {
				t.Errorf("failed to add item %v; %v", key, err)
				return
			}
		}(i)
	}
	wg.Wait()

	batchLen := batch.Len()
	if batchLen != int(limit) {
		t.Fatalf("Expected batch.Len() %v; but got %v", limit, batchLen)
	}

	keys := store.List()
	if len(keys) > 0 {

                logger.error("Failed to update suggest index.", t);
                exitCode.set(1);
                latch.countDown();
            });

            try {
                latch.await();
            } catch (final InterruptedException ignore) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Interrupted.", ignore);
                }
                exitCode.set(1);

Nesse caso, a função de tarefa gravará em um arquivo (simulando o envio de um e-mail).

E como a operação de gravação não usa `async` e `await`, definimos a função com `def` normal:

```Python hl_lines="6-9"
{!../../docs_src/background_tasks/tutorial001.py!}
```

## Adicionar a tarefa em segundo plano

In this case, the task function will write to a file (simulating sending an email).

And as the write operation doesn't use `async` and `await`, we define the function with normal `def`:

{* ../../docs_src/background_tasks/tutorial001.py hl[6:9] *}

## Add the background task

					timeout.LogSuccess(time.Duration(float64(time.Second) * rng.Float64()))
				}
				to := timeout.Timeout()
				if to < time.Millisecond || to > time.Second {
					panic(to)
				}
			}
		}()
	}
	wg.Wait()
}

func TestDynamicTimeoutHitMinimum(t *testing.T) {
	const minimum = 30 * time.Second
	timeout := newDynamicTimeout(time.Minute, minimum)

	initial := timeout.Timeout()

        while (connectionState != 0) {
            if (connectionState == 2 || connectionState == 3) // connected or disconnecting
                return;
            try {
                session.transport.wait();
            } catch (InterruptedException ie) {
                throw new SmbException(ie.getMessage(), ie);
            }
        }
        connectionState = 1; // trying ...

        try {

KEY:
scanner  manage namespace scanning for usage calculation, lifecycle, healing and more

ARGS:
delay     (float)     scanner delay multiplier, defaults to '10.0'
max_wait  (duration)  maximum wait time between operations, defaults to '15s'
cycle     (duration)  time duration between scanner cycles
```

					endpoints[i].IsLocal = isLocal
					epsResolved++
					if !foundLocal {
						foundLocal = isLocal
					}
				}
			}

			// Wait for the tick, if the there exist a local endpoint in discovery.
			// Non docker/kubernetes environment we do not need to wait.
			if !foundLocal && orchestrated {
				<-keepAliveTicker.C
			}
		}
	}

	// On Kubernetes/Docker setups DNS resolves inappropriately sometimes