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 > > > > > > > > > > > > > > > > 本邮件内容包含保密信息。如阁下并非拟发送的收件人,请您不要阅读、保存 > 、 > > 对 > > > 外 > > > > 披露或复制本邮件的任何内容,或者打开本邮件的任何附件。请即回复邮件告 > 知 > > 发 > > > 件 > > > > 人,并立刻将该邮件及其附件从您的电脑系统中全部删除,不胜感激。 > > > > > > > > > > > > This email message may contain confidential and/or privileged > > > information. > > > > If you are not the intended recipient, please do not read, save, > > > forward, > > > > disclose or copy the contents of this email or open any file > attached > > to > > > > this email. 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