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https://issues.apache.org/jira/browse/COMDEV-249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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vongosling updated COMDEV-249:
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Component/s: (was: GSoC/Mentoring ideas)
> [RocketMQ]Message Delivery Once Semantic Implementation
> -------------------------------------------------------
>
> Key: COMDEV-249
> URL: https://issues.apache.org/jira/browse/COMDEV-249
> Project: Community Development
> Issue Type: Wish
> Reporter: vongosling
> Priority: Major
>
> The duplicated messages will impose the extra cost if the user needs
> non-repeating messages.
> In most cases, the user needs to store the consumer records to determine if a
> message is duplicated, and the store stage should guarantee consistency. So
> we need to support a strict and non-redundant message delivery mechanism.
> In this context, we hope to design a delivery once plugin, say, you could
> design a global(but need raft guarantee multi-copy data) storage, using the
> hooker of RocketMQ ConsumeMessageHook to finish the task.
>
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