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From James Wing <jvw...@gmail.com>
Subject Re: 答复: Re: Is there a REST API to run a dataflow on demand?
Date Thu, 22 Feb 2018 06:04:53 GMT
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, <luby@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.meyer@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, <luby@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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