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From "vongosling (JIRA)" <>
Subject [jira] [Closed] (COMDEV-249) [RocketMQ]Message Delivery Once Semantic Implementation
Date Tue, 23 Jan 2018 02:31:00 GMT


vongosling closed COMDEV-249.
    Resolution: Feedback Received

> [RocketMQ]Message Delivery Once Semantic Implementation
> -------------------------------------------------------
>                 Key: COMDEV-249
>                 URL:
>             Project: Community Development
>          Issue Type: Wish
>          Components: GSoC/Mentoring ideas
>            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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