return
	}
	select {
	case m.outBlock <- struct{}{}:
	default:
		gridLogIf(m.ctx, errors.New("output unblocked overflow"))
	}
}

func (m *muxClient) pong(msg pongMsg) {
	if msg.NotFound || msg.Err != nil {
		err := errors.New("remote terminated call")
		if msg.Err != nil {
			err = fmt.Errorf("remove pong failed: %v", &msg.Err)
		}
		m.addResponse(Response{Err: err})
		return
	}

			return ErrBucketConflict(Error{bucket, errors.New(errorString)})
		}
		return newError(bucket, fmt.Errorf("service create for bucket %s, failed with status %s, error %s", bucket, resp.Status, errorString))
	}
	return nil
}

func newError(bucket string, err error) error {
	e := Error{bucket, err}
	if strings.Contains(err.Error(), "invalid bucket name") {
		return ErrInvalidBucketName(e)
	}

		if m.Port == "" {
			return fmt.Errorf("unspecified port")
		}
		if _, err := strconv.Atoi(m.Port); err != nil {
			return fmt.Errorf("invalid port")
		}
		if m.Database == "" {
			return fmt.Errorf("database unspecified")
		}
	}

	if m.QueueDir != "" {
		if !filepath.IsAbs(m.QueueDir) {
			return errors.New("queueDir path should be absolute")
		}
	}

					if utf8.RuneCountInString(s) > 1 {
						return fmt.Errorf("unsupported QuoteCharacter '%v'", s)
					}
					args.QuoteCharacter = s
				case "QuoteEscapeCharacter":
					switch utf8.RuneCountInString(s) {
					case 0:
						args.QuoteEscapeCharacter = defaultQuoteEscapeCharacter
					case 1:
						args.QuoteEscapeCharacter = s
					default:
						return fmt.Errorf("unsupported QuoteEscapeCharacter '%v'", s)
					}

	if err == nil {
		t.Fatal("Expected a non nil error, but nil error returned for invalid profiler.")
	}
}

// checkURL - checks if passed address correspond
func checkURL(urlStr string) (*url.URL, error) {
	if urlStr == "" {
		return nil, errors.New("Address cannot be empty")
	}
	u, err := url.Parse(urlStr)
	if err != nil {
		return nil, fmt.Errorf("`%s` invalid: %s", urlStr, err.Error())
	}
	return u, nil
}

			bucketTargetsFile: bucketTargetsFile,
		})
		if err != nil {
			return updatedAt, fmt.Errorf("Error encrypting bucket target metadata %w", err)
		}
		meta.BucketTargetsConfigUpdatedAt = updatedAt
		meta.BucketTargetsConfigMetaUpdatedAt = updatedAt
	default:
		return updatedAt, fmt.Errorf("Unknown bucket %s metadata update requested %s", bucket, configFile)
	}

	return updatedAt, sys.save(ctx, meta)
}

func (p *processor) Register(name string, fn func(*DB)) error {
	return (&callback{processor: p}).Register(name, fn)
}

func (p *processor) Remove(name string) error {
	return (&callback{processor: p}).Remove(name)
}

func (p *processor) Replace(name string, fn func(*DB)) error {
	return (&callback{processor: p}).Replace(name, fn)
}

func (p *processor) compile() (err error) {
	var callbacks []*callback

type concErr struct {
	errMap     map[string]error
	summaryErr error
}

func (c concErr) Error() string {
	if c.summaryErr != nil {
		return c.summaryErr.Error()
	}
	return "<nil>"
}

func (c concErr) Unwrap() error {
	return c.summaryErr
}

func (c *SiteReplicationSys) toErrorFromErrMap(errMap map[string]error, actionName string) error {
	if len(errMap) == 0 {
		return nil

	if err := DB.Model(user).Update("Age", 10).Error; err != nil {
		t.Errorf("errors happened when update: %v", err)
	} else if user.Age != 10 {
		t.Errorf("Age should equals to 10, but got %v", user.Age)
	}
	checkUpdatedAtChanged("Update", user.UpdatedAt)
	checkOtherData("Update")

	var result User
	if err := DB.Where("id = ?", user.ID).First(&result).Error; err != nil {
		t.Errorf("errors happened when query: %v", err)
	} else {

	if selectAST.Where != nil {
		whereQProp := selectAST.Where.analyze(&selectAST)
		if whereQProp.err != nil {
			err = errQueryAnalysisFailure(fmt.Errorf("Where clause error: %w", whereQProp.err))
			return
		}

		if whereQProp.isAggregation {
			err = errQueryAnalysisFailure(errors.New("WHERE clause cannot have an aggregation"))
			return
		}
	}

	// Validate table name
	err = validateTableName(selectAST.From)