My earlier email message seems to have gotten lost. So I will try again.
Please see the original message for the discussion.

Sohaib Iftikhar

-- Man is still the most extraordinary computer of all.--

On Tue, Feb 20, 2018 at 1:54 AM, Sohaib Iftikhar <>

> Hi,
> I am interested in working on this issue (
> jira/browse/ROCKETMQ-124) as part of GSOC-18. I have a few questions for
> the same. I am not sure if this discussion needs to be on the JIRA issue or
> here. Feel free to correct me if this is the wrong platform. Also while I
> have worked with distributed pub-sub systems I am still fairly new to
> Rocket-MQ so maybe my understanding of it is incorrect. I apologise if that
> is the case and would be happy to stand corrected.
> Following are my questions:
> 1. What defines a redundant message?
>     The constructor that I see for a message is as follows:
>     Message(String topic, String tags, String keys, int flag, byte[] body,
> boolean waitStoreMsgOK)
>     Possible candidates to me are topic, tags (can there be multiple tags?
> I could not find an example for this. If yes how are they separated?), keys
> (Similar question to above.) and of course the body. Is there something
> that I have missed in this? Is there something that we do not need to
> consider?
> 2. Is their a timeline on the redundant messages? What I mean by this is
> that is there a time limit after which a message with similar content is
> allowed. From what I gather there was no such thing mentioned. This would
> mean storing all the messages. Depending on the requirements this may or
> may not be the best solution. It might be desirable that no duplicates are
> needed within a certain time window (sliding). This allows ignoring of
> duplicate messages that were generated very close to each other (or in the
> window indicated). Depending on this requirement implementation may become
> a little bit more involved.
> For now, these are the only questions. I have ideas that need review about
> possible implementations but I will mention them once the specifications
> are clear to me. As an end question, I would at some point like to post
> design ideas to this problem privately to get it reviewed by the
> development community but not make it publicly available so that it cannot
> be plagiarised. What platform/method can I use to do that? Or is submitting
> a draft to the Google platform the only possible way to accomplish this?
> Thanks a lot for reading this through and looking forward to your inputs.
> Regards,
> Sohaib Iftikhar

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