[jira] [Assigned] (ROCKETMQ-97) SendCallback should bring response code and extMessags in OnException

["vongosling (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ROCKETMQ-97?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

vongosling reassigned ROCKETMQ-97:
----------------------------------

    Assignee: vongosling  (was: Stevens Chew)

> 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: vongosling
>
> 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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