duhenglucky commented on issue #1244: Return FLUSH_SLAVE_TIMEOUT while message is sent successfully URL: https://github.com/apache/rocketmq/issues/1244#issuecomment-517270277 @suiyuzeng 检查主从之间的gap是否差距较大，以及适当增加haTransferBatchSize，还有就是提交频率以及page都可以适当调整下。 另外，看起来你已经解决这个问题了，由于issue只用于bug report跟feature request，所以咨询类的问题尽量走邮件列表: https://rocketmq.apache.org/about/contact/, 这样可以沉淀下来，并且被检索到方便其他遇到同样疑问的小伙伴，所以我先暂时关掉这个issue，有问题的话，随时重新打开
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