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From kant kodali <kanth...@gmail.com>
Subject Re: How to integrate a custom protocol with Apache Nifi
Date Wed, 07 Dec 2016 09:52:00 GMT
I am also confused a little bit since I am new to Nifi. I wonder why Nifi
would act as a server? isn't Nifi a routing layer between systems? because
this brings in another question about Nifi in general.

When I write my applications/microservices do I need to worry about how my
service would talk to Nifi or do I have the freedom of just focusing on my
application and using whatever protocol I want and In the end just plugin
to Nifi which would take care? other words is Nifi a tight integration with
applications such that I always have to import a Nifi Library within my
application/microservice ? other words do I need to worry about Nifi at
programming/development time of an Application/Microservice or at
deployment time?

Sorry if these are naive questions. But answers to those will help greatly
and prevent me from asking more questions!

Thanks much!
kant




On Wed, Dec 7, 2016 at 1:23 AM, kant kodali <kanth909@gmail.com> wrote:

> Hi Koji,
>
> That is an awesome explanation! I expected processors for HTTP2 at very
> least since it is widely used ( the entire GRPC stack runs on that). I am
> not sure how easy or hard it is to build one?
>
> Thanks!
>
> On Wed, Dec 7, 2016 at 1:08 AM, Koji Kawamura <ijokarumawak@gmail.com>
> wrote:
>
>> Hi Kant,
>>
>> Although I'm not aware of existing processor for HTTP2 or NSQ, NiFi
>> has a set of processors for WebSocket since 1.1.0.
>> It enables NiFi to act as a WebSocket client to communicate with a
>> remote WebSocket server, or makes NiFi a WebSocket server so that
>> remote clients access to it via WebSocket protocol.
>>
>> I've written a blog post about how to use it, I hope it will be useful
>> for your use case:
>> http://ijokarumawak.github.io/nifi/2016/11/04/nifi-websocket/
>>
>> Thanks,
>> Koji
>>
>>
>>
>> On Wed, Dec 7, 2016 at 3:23 PM, kant kodali <kanth909@gmail.com> wrote:
>> > Thanks a ton guys! Didn't expect Nifi community to be so good! (Another
>> > convincing reason!)
>> >
>> > Coming back to the problem, We use NSQ a lot (although not my favorite)
>> and
>> > want to be able integrate Nifi with NSQ to other systems such as Kafka,
>> > Spark, Cassandra, ElasticSearch, some micro services that uses HTTP2 and
>> > some micro service that uses Websockets
>> >
>> > (which brings in other question if Nifi has HTTP2 and Websocket
>> processors?)
>> >
>> > Also below is NSQ protocol spec. They have Java client library as well.
>> >
>> > http://nsq.io/clients/tcp_protocol_spec.html
>> >
>> >
>> > On Tue, Dec 6, 2016 at 5:14 PM, Oleg Zhurakousky
>> > <ozhurakousky@hortonworks.com> wrote:
>> >>
>> >> Hi Kant
>> >>
>> >> What you’re trying to accomplish is definitely possible, however more
>> >> information may be needed from you.
>> >> For example, the way I understand your statement about “integration
>> with
>> >> many systems” is something like JMS, Kafka, TCP, FTP etc…. If that is
>> the
>> >> case such integration is definitely possible with your “custom system”
>> by
>> >> developing custom Processor and/or ControllerService.
>> >> Processors and ControllerServices are the two main integration points
>> >> within NiFi
>> >> You can definitely find may examples by looking at some of the
>> processors
>> >> (i.e., PublishKafka or ConsumeKafka, PublishJMS or ConsumeJMS etc.)
>> >>
>> >> Let us know if you need more help to guide you through the process.
>> >>
>> >> Cheers
>> >> Oleg
>> >>
>> >> > On Dec 6, 2016, at 7:46 PM, kant kodali <kanth909@gmail.com>
wrote:
>> >> >
>> >> > HI All,
>> >> >
>> >> > I understand that Apache Nifi has integration with many systems but
>> what
>> >> > If I have an application that talks a custom protocol ? How do I
>> integrate
>> >> > Apache Nifi with the custom protocol?
>> >> >
>> >> > Thanks,
>> >> > kant
>> >>
>> >
>>
>
>

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