I've created a simple pipeline with a number of copy activities. When I attempt to debug or "trigger now" the pipeline starts executing and then after about a minute, a message flashes, and another instance of the pipeline starts.
Message Screenshot:
Anybody experience this or know how to prevent it?
Please check the trigger definition, below is a sample trigger.
In this you can set the trigger schedules.
In your case, I think the Recurrence is Every 1 Min(s).
You can change it according to your use case.
Thanks!
What happens when you just do a debug ? I think you have two triggers whcih are associated and so when you do "trigger now" both of them are getting fired . May be the below screenshot help to check that .
As a supplement, you could go to Monitor-->Pipeline run-->Trigger/Degbug to check the pipeline run history.
Then you could know how the pipeline runs, manual debug(triggered) running or trigger triggered.
Then remove the trigger related like #HimanshuSinha-msft said.
Also please make sure you are the only one who operate the pipeline in the current time and the pipeline is not triggered or called by other services or executed by other pipeline actives, , such as logic app, etc..
HTH.
Related
My pipelines activities need the date of the run as a parameter. Now I get the current date in the pipeline from the utcnow() function. Ideally this would be something I could enter dynamically in the trigger so I could rerun a failed day and the parameter would be set right, now a rerun would lead to my pipeline being rerun but with the date of today not the failed run date.
I am used to airflow where such things are pretty easy to do, including scheduling reruns. Probably I think too much in terms of airflow but I can't wrap my head around a better solution.
In ADF,it is not supported directly to pass trigger date at which pipeline got failed to trigger.
You can get the trigger time using #pipeline().TriggerTime .
This system variable will give the time at which the trigger triggers the pipeline to run.
You can store this trigger value for every pipeline and use this as a parameter for the trigger which got failed and rerun the pipeline.
Reference: Microsoft document on System Variables on ADF
To resolve my problem I had to create a nested structure of pipelines, the top pipeline setting a variable for the date and then calling other pipelines passing that variable.
With this I still can't rerun the top pipeline but rerunning Execute Pipeline1/2/3 reruns them with the right variable set. It is still not perfect since the top pipeline run stays an error and it is difficult to keep track of what needs to be rerun, however it is a partial solution.
I have a requirement to incrementally copy data from one SQL table to another SQL table. The watermark or key column is an Identity column. My boss wants me to restart the load as soon as it's done...and as you know, the completion time may vary. In Azure Data Factory, the trigger options are Scheduled, Tumbling Window and Custom Event. Does anyone know which option would allow me to achieve this continuous running of the pipeline and how to configure it?
Create a new pipeline. Call it "run forever". Add an "until" activity with a never-true condition e.g. #equals(1, 2).
Inside the until execute the pipeline which copies between tables. Ensure "wait for completion" is ticked.
If the table copy fails then "run forever" will fail and will have to be manually re-started. You likely do not want "run forever" to be scheduled as the scheduled invocations will queue should it, in fact, not fail.
Pipeline in ADF are batch-based. You can set "micro batches" of 1 min with schedule trigger or 5 mins with tumbling window.
ADF will run in a batch. If you want to continuously load the data then you can go for Stream Analytics / Event Hub which would load real-time data
I need help with implementation for below requirement:
There is one ADF pipeline that runs every two hours (with Tumbling window trigger), now i need to create one more pipeline that will be used for performing maintenance job . This pipeline is scheduled to run once a month (with schedule trigger). Here is the requirement that i'm trying to implement:
Now before running the second pipeline i need to make sure the first pipeline is not running (basically get the status and if its running wait for its completion) and then disable the trigger associated with it.
Run the second pipeline and after its completion , enable the trigger that is associated with first pipeline
Please let me know if this can be achieved within ADF or some kind of custom scripting needed to achieve the result.
First, your idea is achievable.
Second, if you want to use built-in feature in Azure Datafactory, then there is no way.
Basically, you need to use azure function(simple httptrigger, dont give any input, then you can hit and execute it directly.) to achieve your requirement that ADF can't do. From your description, the executing of these two pipelines are mutually exclusive, so you can use sdk to check to status of another pipeline in azure function. If another pipeline is running, then wait a few seconds then re-check the status of another pipeline.(In short, put the main logic and code in the azure function.)
Simple azure function:
https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-http-webhook-trigger?tabs=csharp
Use SDK to monitor:
https://learn.microsoft.com/en-us/azure/data-factory/monitor-programmatically#net
(The link I give is C#, you can choose other supported language.)
I am interested in getting actual run start time for Tumbling Window trigger. I don't want Schedule Trigger. My scenario demands for Tumbling Window trigger specifically, but also some logic also requires knowing exactly at what time a triggered run started. As per the documentation I tried using #pipeline().TriggerTime , basically I passed it as a value to one of the pipeline parameters, but then it was not converted into a value -- then I realized the scope of this expression is within pipeline so I can't use it in a trigger. #trigger().outputs.windowStartTime can be used in a trigger but it doesn't serve my purpose -- I am not looking for a window start time , which is fixed no matter when a trigger is executed. I want actual run start time for Tumbling Window trigger. Is there any solution to this?
One solution I found is that we create Append Variable activity and call #pipeline().TriggerTime in the value section of the activity. Since this is part of the pipeline, it gets converted into a value there.
Another solution is to simply call utcnow() in the append variable activity.
My company has a couple of joblets that we put in new jobs to do things like initialization of variables, get system information from the database and sending out error / warning emails. The issue we are running into is that if we go ahead and start creating the components of a job and realize that we forgot to include these 3 joblets, we have to basically re-create the job to ensure that the joblets are added first so they run first.
Is there any way to force these joblets to run first and possibly also in a certain order before moving on to the contents of the job being created? Please let me know if there is any information you may need that I'm missing as I have only been using Talend for a few days. The rest of the team has not been using it too much longer than I have, so they do not have the answer I'm looking for either. Thanks in advance!
In Joblets you can use the components Trigger_Input and Trigger_Output as connection-points for on subjob OK triggers. So you can connect joblets and other components in a job with triggers. Thus enforcing execution order.
But you cannot get a on subjob OK trigger from a tPreJob. I am thinking on triggering from a tPreJob to a tWarn (on component OK) and then from tWarn to the joblet (on subjob OK).