I believe even if it is where to be made available as part of NiFi REST
API, I think it is internally going to call the start and stop APIs.
On Fri, 23 Feb 2018 at 6:54 AM, <l...@china-inv.cn> wrote:
> Yes, that is what I do currently.
>
> But I think it will be better if NiFi can support this feature natively.
>
>
>
> 发件人:
> "Andrew Grande" <apere...@gmail.com>
> 收件人:
> dev@nifi.apache.org
> 日期:
> 2018/02/23 09:07
> 主题:
> Re: Re: Re: 答复: Re: Is there a REST API to run a dataflow on demand?
>
>
>
> One could write a script and call it in 1 step. I don't believe there is
> anything available OOTB.
>
> Andrew
>
> On Thu, Feb 22, 2018, 7:58 PM <l...@china-inv.cn> wrote:
>
> > Thanks a lot for your help.
> >
> > Yes. that is what I do to trigger a dataflow on demand.
> > But I want to know if there is an API that I can do this in one step.
> >
> >
> >
> > 发件人:
> > "Daniel Chaffelson" <chaffel...@gmail.com>
> > 收件人:
> > dev@nifi.apache.org
> > 日期:
> > 2018/02/23 04:46
> > 主题:
> > Re: Re: 答复: Re: Is there a REST API to run a dataflow on demand?
> >
> >
> >
> > Hi Boying,
> >
> > I have been working on a NiFi Python Client SDK that might help you
> here,
> > as the goal is to be able to replicate everyday actions taken in the
> NiFi
> > GUI as well as extending it for CICD/SDLC work.
> > For example with the following commands you would:
> >
> > 1. get the reference object for a processor
> > 2. stop it if it is running
> > 3. change the scheduling period to 3s (or most other parameters)
> > 4. start it again
> >
> >
> > import nipyapi
> > processor_state_1 = nipyapi.canvas.get_processor('MyProcessor')
> > nipyapi.canvas.schedule_processor(processor, scheduled=False)
> > update = nipyapi.nifi.ProcessorConfigDTO(
> > scheduling_period='3s'
> > )
> > processor_state_2 = nipyapi.canvas.update_processor(processor, update)
> > nipyapi.canvas.schedule_processor(processor, scheduled=True)
> >
> > If you need a different set of steps then please let me know and perhaps
> I
> > can help.
> > Those commands are currently in the master branch awaiting release:
> > https://github.com/Chaffelson/nipyapi
> >
> > Thanks,
> > Dan
> >
> > On Thu, Feb 22, 2018 at 7:41 AM <l...@china-inv.cn> wrote:
> >
> > > Thanks very much, I'll try your suggestions.
> > >
> > >
> > >
> > > 发件人:
> > > James Wing <jvw...@gmail.com>
> > > 收件人:
> > > NiFi Dev List <dev@nifi.apache.org>
> > > 日期:
> > > 2018/02/22 14:05
> > > 主题:
> > > Re: 答复: Re: Is there a REST API to run a dataflow on demand?
> > >
> > >
> > >
> > > The NiFi API can be used to start and stop processors or process
> groups,
> > > and this might solve your use case. But NiFi does not have an API to
> > run
> > > a
> > > processor only once, immediately, separate from its configured
> schedule.
> > I
> > > have solved similar problems in the past by creating two separate
> > upstream
> > > sources - one for scheduled operation, and one for ad-hoc operation.
> > > GenerateFlowFile, GetFile, or similar processors can be used to inject
> a
> > > flowfile where you need to kick off the flow.
> > >
> > > Thanks,
> > >
> > > James
> > >
> > > On Wed, Feb 21, 2018 at 5:57 PM, <l...@china-inv.cn> wrote:
> > >
> > > > Thanks a lot.
> > > >
> > > > But I want to know if there is a REST API that triggers a dataflow
> on
> > > > demand?
> > > > I don't find the API in the page.
> > > >
> > > >
> > > >
> > > >
> > > > 发件人:
> > > > Charlie Meyer <charlie.me...@civitaslearning.com>
> > > > 收件人:
> > > > dev@nifi.apache.org
> > > > 日期:
> > > > 2018/02/22 09:36
> > > > 主题:
> > > > Re: Is there a REST API to run a dataflow on demand?
> > > >
> > > >
> > > >
> > > > Yep, when you make the changes in the UI, open developer tools in
> your
> > > > browser and see what calls to the nifi api it is making then mimic
> > those
> > > > with code.
> > > >
> > > > The nifi team also kindly publishes
> > > > https://nifi.apache.org/docs/nifi-docs/rest-api/index.html which
> help
> > a
> > > > lot.
> > > >
> > > > Best of luck!
> > > >
> > > > -Charlie
> > > >
> > > > On Wed, Feb 21, 2018 at 7:34 PM, <l...@china-inv.cn> wrote:
> > > >
> > > > > Hi, team,
> > > > >
> > > > > We set up several NiFi dataflows for data processing.
> > > > > These dataflows are configured to run once per day in the
> midnight.
> > > > >
> > > > > But sometimes, some dataflows are failed,I want to run the
> dataflow
> > > > again
> > > > > immediately after fixing the issue instead of waiting for running
> it
> > > in
> > > > > the midnight to
> > > > > make sure that the issue is really fixed.
> > > > >
> > > > > The only way I know to do this is to change the time of running
> the
> > > > > dataflow to the 5 mintutes from now for example
> > > > > and then change it back to midnight.
> > > > >
> > > > > It's a little inconvenient.
> > > > >
> > > > > Is there any REST API that I can use to trigger the dataflow on
> > demand
> > > > > i.e. without change the time back and forth?
> > > > >
> > > > > Thanks
> > > > >
> > > > > Boying
> > > > >
> > > > >
> > > > >
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