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https://issues.apache.org/jira/browse/ROCKETMQ-270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16235267#comment-16235267
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ASF GitHub Bot commented on ROCKETMQ-270:
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vongosling commented on issue #189: [ROCKETMQ-270] Move flush position forward
to first MappedFile whose start offset is non-zero
URL: https://github.com/apache/rocketmq/pull/189#issuecomment-341332092
LGTM
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> Slave Broker can't start normally if master broker has been cleaned commit log
> ------------------------------------------------------------------------------
>
> Key: ROCKETMQ-270
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-270
> Project: Apache RocketMQ
> Issue Type: Bug
> Components: rocketmq-broker
> Affects Versions: 4.0.0-incubating, 4.1.0-incubating
> Reporter: yukon
> Assignee: yukon
> Priority: Major
> Fix For: 4.2.0
>
>
> How to reproduce this bug?
> 1. Start master broker, and write lots of messages until broker starts
> cleaning commit log.
> 2. When the first commit log file isn't 00000000000000, start slave broker.
> In current state, slave broker will pull messages from master broker, but the
> first message's offset isn't zero, and isn't equal to commit offset, so slave
> broker could't do right flush.
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