redis/go-redis · error

failed to enable maintnotifications: %w

Error message

failed to enable maintnotifications: %w

What it means

Error "failed to enable maintnotifications: %w" thrown in redis/go-redis.

Source

Thrown at redis.go:1095

			if !isRedisError(maintNotifHandshakeErr) {
				// if not redis error, fail the connection
				cn.GetStateMachine().Transition(pool.StateClosed)
				return maintNotifHandshakeErr
			}
			c.optLock.Lock()
			// handshake failed - check and modify config atomically
			switch c.opt.MaintNotificationsConfig.Mode {
			case maintnotifications.ModeEnabled:
				// enabled mode, fail the connection
				c.optLock.Unlock()
				cn.GetStateMachine().Transition(pool.StateClosed)

				// Record handshake failure metric
				if errorCallback := pool.GetMetricErrorCallback(); errorCallback != nil {
					errorCallback(ctx, "HANDSHAKE_FAILED", cn, "HANDSHAKE_FAILED", true, 0)
				}

				return fmt.Errorf("failed to enable maintnotifications: %w", maintNotifHandshakeErr)
			default: // will handle auto and any other
				// Disabling logging here as it's too noisy.
				// TODO: Enable when we have a better logging solution for log levels
				// internal.Logger.Printf(ctx, "auto mode fallback: maintnotifications disabled due to handshake error: %v", maintNotifHandshakeErr)
				c.opt.MaintNotificationsConfig.Mode = maintnotifications.ModeDisabled
				c.optLock.Unlock()
				// auto mode, disable maintnotifications and continue
				if initErr := c.disableMaintNotificationsUpgrades(); initErr != nil {
					// Log error but continue - auto mode should be resilient
					internal.Logger.Printf(ctx, "failed to disable maintnotifications in auto mode: %v", initErr)
				}
			}
		}
	}

	if !c.opt.DisableIdentity && !c.opt.DisableIndentity {
		libName := ""
		libVer := Version()

View on GitHub (pinned to c5cad058c7)

When it happens

Trigger: Thrown at redis.go:1095 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of redis/go-redis@c5cad058c7 (2026-09-01). Data as JSON: /api/errors/b48ec2a237d4ef53. Report an issue: GitHub.