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https://issues.apache.org/jira/browse/ROCKETMQ-97?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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vongosling reassigned ROCKETMQ-97:
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Assignee: Stevens Chew (was: Xiaorui Wang)
> SendCallback should bring response code and extMessags in OnException
> ---------------------------------------------------------------------
>
> Key: ROCKETMQ-97
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-97
> Project: Apache RocketMQ
> Issue Type: Improvement
> Components: rocketmq-client
> Affects Versions: 4.1.0-incubating
> Reporter: Jaskey Lam
> Assignee: Stevens Chew
>
> For sendAsync, when excpetion occurs, the developer will have nothing to
> distiguish what kind of exception it is unless read the remark or stacktrace.
> Actually, for some broker problems, say service_not_availble or system_error,
> the devs should do some special actions. This can be got from send in sync
> way since the response will return to the caller.
> But now, in async send, with no response code , we can't distinguish them.
> Even more, for some situation, the queue sent to is needed , so if possible,
> there should be an ext fields where collect as many message as possible to
> let developer to descide their callback behavior. Which is neither exist in
> sync nor async ways.
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