n8n-io/n8n · error · NodeOperationError

Redis Error: ${error.message}

Error message

Redis Error: ${error.message}

What it means

Error "Redis Error: ${error.message}" thrown in n8n-io/n8n.

Source

Thrown at packages/@n8n/nodes-langchain/nodes/memory/MemoryRedisChat/MemoryRedisChat.node.ts:150

				tls: credentials.ssl === true,
			},
			database: credentials.database as number,
		};

		if (credentials.user && nodeVersion >= 1.5) {
			redisOptions.username = credentials.user as string;
		}
		if (credentials.password) {
			redisOptions.password = credentials.password as string;
		}

		const client = createClient({
			...redisOptions,
		});

		client.on('error', async (error: Error) => {
			await client.quit();
			throw new NodeOperationError(this.getNode(), 'Redis Error: ' + error.message);
		});

		const redisChatConfig: RedisChatMessageHistoryInput = {
			client,
			sessionId,
		};

		if (sessionTTL > 0) {
			redisChatConfig.sessionTTL = sessionTTL;
		}
		const redisChatHistory = new RedisChatMessageHistory(redisChatConfig);

		const memClass = this.getNode().typeVersion < 1.3 ? BufferMemory : BufferWindowMemory;
		const kOptions =
			this.getNode().typeVersion < 1.3
				? {}
				: { k: this.getNodeParameter('contextWindowLength', itemIndex) };

View on GitHub (pinned to 5ac6606e81)

When it happens

Trigger: Thrown at packages/@n8n/nodes-langchain/nodes/memory/MemoryRedisChat/MemoryRedisChat.node.ts:150 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of n8n-io/n8n@5ac6606e81 (2026-08-12). Data as JSON: /api/errors/cf623c93ebafa279. Report an issue: GitHub.