Currently, I have an Azure Function App which runs every hour (timer trigger) that pulls data from Azure table storage and updates a NSG. I only did it this way because Function Apps currently DON'T support Azure Table triggers; however Function Apps DO support Azure queue triggers.
With that said, i'd like a message be sent to the queue every time my Azure Table is updated. That way, the Azure Table updates can happen immediately compared to every hour. Haven't figured out how to send messages to Azure Queue from Azure Tables though.
Any help?
There is no change feed, update triggers etc. on Azure Table storage. You could achieve this by switching to Tables API on Cosmos DB - which does have a Change Feed.
Related
I am working on a project where I need to consume the entries of the storage queue from a data factory pipeline.
Files will be uploaded to a blob storage which triggers a azure function. This azure function writes into a storage queue. Now I want to consume the entries of this storage queue. Due to the fact that the storage queue provide a rest api to consume data, I can use a web client in the azure data factory which can be scheduled every few minutes. But I would prefere a more direct way, so that when the storage queue has been filled, my pipeline should be starting.
I am quite new to the azure world, so now I am searching for solution. Is there a way to subscribe to the storage queue? I can see that there is the possibilty to create custom triggers in the data factory how can I connect to a storage queue there? Or is there another way?
Thank you #Scott Mildenberger for pointing out in the right direction. After taking the inputs and reproducing from my end, this was working when I used Queue Trigger called When a specified number of messages are in a given queue (V2) where we can specify the Threshold of the Queue to get the flow triggered. Below is the flow of my Logic App.
RESULTS:
In Logic App
In ADF
I have a azure storage container where I will be getting many files on daily basis.My requirement is that I need a trigger in azure data factory or databricks when each time 500 new files are arrived so I can process them.
In Datafatory we have event trigger which will trigger for each new files(with filename and path). but is it possible to get multiple new files and their details at same time?
What services in azure I can use for this scenario.. event hub? azure function.. queues?
One of the characteristics of a serverless architecture is to execute something whenever a new event occurs. Based on that, you can't use those services alone.
Here's what I would do:
#1 Azure Functions with Blob Trigger, to execute whenever a new file arrives. This would not start the processing of the file, but just 'increment' the count of files that would be stored on Cosmos DB.
#2 Azure Cosmos DB, also offers a Change Feed, which is like an event sourcing whenever something changes in a collection. As the document created / modified on #1 will hold the count, you can use another Azure Function #3 to consume the change feed.
#3 This function will just contain an if statement which will "monitor" the current count, and if it's above the threshold, start the processing.
After that, you just need to update the document and reset the count.
Is it possible to trigger Azure Functions or AppService webapp whenever an insert operation is performed against a table on Azure SQL MI?
if not, is there a way to trigger applications outside Azure SQL rather than using LogicApp? I want to avoid LogicApp because it requries using one more application, and it is still using polling.
Link below said it is not for Azure functions
https://feedback.azure.com/forums/355860-azure-functions/suggestions/16711846-sql-azure-trigger-support
Link below suggests using LogicApp.
Trigger Azure Function by inserting (adding) new row into table, SQL Server Database
Today, in Azure SQL, there is no such possibility. The closest option is to create a Timer Trigger Azure Function that checks if there has been any changes in the table you want to monitor (using Change Tracking, for example).
If you are using Azure SQL MI instead, you could create a SQLCLR procedure that calls an Azure Function via an HTTP request or, another option, via Azure Event Hubs or Azure Event Grid
There have been several feature requests for triggering Azure functions based on changes to at Azure SQL database. For example:
https://github.com/Azure/azure-functions-python-worker/issues/365
It seems that they are not prioritizing it, since it is possible to implement this functionality using logic apps.
I want to send Azure Diagnostics to Kusto tables.
The idea is to get logs and metrics from various Azure resources by sending them to a storage account.
I'm following both Ingest blobs into Azure Data Explorer by subscribing to Event Grid notifications and Tutorial: Ingest and query monitoring data in Azure Data Explorer,
trying to use the best of all worlds - cheap intermediate storage for logs, and using EventHub only for notifications about the new blobs.
The problem is that only part of the data is being ingested.
I'm thinking that the problem is in the append blobs which monitoring creates. When Kusto receives "Created" notification, only a part of the blob is written, and the rest of events are never ingested as the blob is appended to.
My question is, how to make this scenario work? Is it possible at all, or I should stick with sending logs to EventHub without using the blobs with Event Grid?
Append blobs do not work nicely with Event Grid ADX ingestion, as they generate multiple BlobCreated events.
If you are able to cause blob rename on update completion, that would sole the problem.
I need a way to trigger the Azure functions when an entity is added to the Azure Table storage. Is there a way to do this ? When I tried to add a new Azure function, I did not see any Azure Table storage trigger. I see there is Queue and Blob triggers available.
If there is no support for the Azure table storage trigger, then should I need to have a Http trigger and have the Azure Table storage as input binding ?
Thanks
There is no trigger binding for Table Storage.
Here's a detailed view on what is supported by the different bindings available today:
https://learn.microsoft.com/en-us/azure/azure-functions/functions-triggers-bindings#overview
If there is no support for the Azure table storage trigger, then should I need to have a Http trigger and have the Azure Table storage as input binding ?
Yes, this approach would work and would allow you to pass the table data as an input while relying on a separate trigger. Depending on the type of clients you are working with, and your requirements, using a queue trigger is also another good option.
#venki What the Fabio Cavalcante said to you is really true. Azure Function doesn't have a trigger option for Storage Table. But, whether your business needs store the data into the Storage Table and you as a Developer decide to use Azure Function into your architecture, you're able to configure you Function to use data that will come from Storage Table as a Input to your Function! This works really well.
But, There is another way to configure your Function to have "automagically" trigger, using Storage Queue (for small business) or Service Bus (for a business that needs a mechanism more robust)