That's a great answer not only to this question but also open source!

On Sun, Oct 16, 2016 at 3:59 PM, Jungtaek Lim <> wrote:

> Trident is the only way to create topology declaratively, and also only
> way to support exactly-once. A relatively new project 'Storm SQL' uses
> Trident. Trident is not even deprecated.
> Btw, one of the clear advantage of Storm compared to Spark is the low
> latency coming from streaming model, but Trident is also micro-batch model
> hence also high latency. So IMHO Storm should invest streaming model more,
> and eventually supports streaming and batch (if possible), not micro-batch.
> There is some efforts regarding declarative API with streaming model,
> STORM-1961 <>. Design doc
> is available so you can take a look and comment, and also implementation
> is available <> (though not
> reviewed) so if you want to try it out you can build your own package and
> do some experiments and feedback. Once this API supports exactly-once (in
> later phase), this API might replace Trident usage, but it's unlikely be
> done in a near future.
> One thing you may need to know when playing with open source is that
> answering the questions, participate the discussions, do some contributions
> (code, doc, whatever), and all of things need considerable time, and many
> of community members spend their leisure time to do it. Even someone is
> supported by employer to work on Storm, they normally have other works as
> well. (hence priority matters as same as what you meet in your daily work)
> You need to find out your own answer if no one interests your question (or
> no one can answer your question, who knows). Open source is not free, it
> requires time and efforts instead of money, and that's why open source
> technical support is valid for business model.
> Hope this helps to answer your question.
> Thanks,
> Jungtaek Lim (HeartSaVioR)
> 2016년 10월 17일 (월) 오전 5:29, Cheney Chen <>님이 작성:
> Wondering as well.
> Unfortunately just tried out weeks ago. I thought it was powerful and easy
> to integrate.
> Personally got questions not responded for days.
> Looking forwards to clear answer here.
> On Sun, Oct 16, 2016 at 1:14 PM, Adrienne Kole <>
> wrote:
> Hi ,
> I am wondering is trident  a dead project?
> Or is it wrong place to ask questions about trident?
> Or did storm stop supporting trident?
> I haven't seen any support for given questions related with this project
> in previous 2-3 month.
> Thanks
> Adrienne
> --
> Regards,
> Qili Chen (Cheney)
> E-mail:
> MP: (+1) 4086217503 <+1%20408-621-7503>

Qili Chen (Cheney)

MP: (+1) 4086217503

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