panzhi33 commented on issue #3661:
URL: https://github.com/apache/rocketmq/issues/3661#issuecomment-998534528
> 可以按如下方法复现只同步最新commitlog的情况
1，先不启动slave，在一个全新的master上创建topic生产一段时间，让主从差距有个上百G，然后启动slave。
> […](#)
> ------------------ 原始邮件 ------------------ 发件人:
"apache/rocketmq" ***@***.***>; 发送时间: 2021年12月20日(星期一) 晚上8:21
***@***.***>; ***@***.******@***.***>; 主题: Re: [apache/rocketmq] Why
only the last few files are synchronized when the master-slave synchronization
gap is large (Issue #3661) look at
org.apache.rocketmq.store.ha.HAService.HAClient#dispatchReadRequest long
slavePhyOffset = HAService.this.defaultMessageStore.getMaxPhyOffset(); if
(slavePhyOffset != 0) { if (slavePhyOffset != masterPhyOffset) {
log.error("master pushed offset not equal the max phy offset in slave, SLAVE: "
+ slavePhyOffset + " MASTER: " + masterPhyOffset); return false; } } this
ensures the slave offset should be continuous. Thesituation you describe is
unlikely to happen, can you give more details ?? — Reply to this email
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这个是预期内的，如果之前没有同步过，那么就会从master的最新也就是最大位点开始。
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