[消息保障100%投递成功](%E6%B6%88%E6%81%AF%E4%BF%9D%E9%9A%9C100%E6%8A%95%E9%80%92%E6%88%90%E5%8A%9F.md) [幂等性概念及业界主流解决方案](%E5%B9%82%E7%AD%89%E6%80%A7%E6%A6%82%E5%BF%B5%E5%8F%8A%E4%B8%9A%E7%95%8C%E4%B8%BB%E6%B5%81%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88.md) [confirm确认消息](confirm%E7%A1%AE%E8%AE%A4%E6%B6%88%E6%81%AF.md) [return返回消息](return%E8%BF%94%E5%9B%9E%E6%B6%88%E6%81%AF.md) [自定义消费者](%E8%87%AA%E5%AE%9A%E4%B9%89%E6%B6%88%E8%B4%B9%E8%80%85.md) [消费端限流策略](%E6%B6%88%E8%B4%B9%E7%AB%AF%E9%99%90%E6%B5%81%E7%AD%96%E7%95%A5.md) [消费端ack与重回队列机制](%E6%B6%88%E8%B4%B9%E7%AB%AFack%E4%B8%8E%E9%87%8D%E5%9B%9E%E9%98%9F%E5%88%97%E6%9C%BA%E5%88%B6.md) [TTL消息](TTL%E6%B6%88%E6%81%AF.md) [死信队列](%E6%AD%BB%E4%BF%A1%E9%98%9F%E5%88%97.md)