Azure Events 101: A Comprehensive Guide

Azure Events is a powerful tool that allows you to integrate different systems and services to create a seamless experience for your users. It's a cloud-based event grid that enables you to process and route events from various sources.

Azure Events is highly scalable, allowing you to handle a large volume of events without worrying about performance issues. This makes it an ideal choice for businesses with high traffic or complex workflows.

Azure Events supports a wide range of event sources, including Azure services, third-party services, and even custom applications. This flexibility makes it easy to integrate with your existing infrastructure.

With Azure Events, you can process events in real-time, enabling you to respond quickly to changing circumstances and provide a better user experience.

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Azure Events is a powerful tool that helps you understand the "Why, When, and Where" of your business applications. This is achieved through the three pillar actions of "Why, When, and Where" that Azure Event Hubs comes into play.

Azure Event Hubs is a crucial component in any business application, and its necessity can be understood by analyzing its characteristics.

Azure Event Hubs has a secondary namespace that is "passive" and does not receive messages, in contrast to the primary namespace.

Azure Event Hubs provides logging, monitoring, and alerting capabilities, which can be crucial in managing and troubleshooting your applications.

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The W's of Azure Events are a crucial part of understanding how they work.

Azure Events are all about answering the three fundamental questions: Why, When, and Where.

The Why of Azure Events is about understanding the need for event-driven architecture in business applications.

Azure Event Hubs comes into play when you need to handle high volumes of events, and it's a compilation of characteristics that make it necessary in any business application.

A secondary namespace is passive and does not receive messages, unlike a primary namespace.

Azure Event Hub logging, monitoring, and alerting are key features that help you keep track of your events.

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Azure Event Hubs is used for event storage and handling in business orchestrations.

It's particularly useful for handling large amounts of data, such as batches of captured events that need to be processed in a timely manner.

Azure Event Hubs can automatically write these batches to Azure Storage Blob containers.

Event Grid is used when events don't require batch-oriented processing, such as when an event is emitted to the Event Grid upon creation of a capture file.

Event Grid provides reliable event delivery at massive scale.

Azure Relay is used to securely expose services that run in the corporate network to the public cloud.

This allows business logic to be processed on-premise, such as when telematics data in a storage blob container is used for decision-making analytics.

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Azure Event Grid offers a rich mixture of features, including the ability to handle millions of events per second.

Event Grid provides a robust set of features that make it a powerful tool for event-driven architecture. You can use it to handle a wide range of event types, from simple notifications to complex business events.

Here are some of the key features of Azure Event Grid:

With Event Grid, you can also use Azure Event Hubs and Stream Analytics to provide an end-to-end solution for real-time analytics, making it easier to gain insights from your data.

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Event Grid is a powerful tool that allows publishers to inform consumers about status changes. It's an event routing service that acts as a connector to tightly bind all applications together.

With Event Grid, you can route event messages from any source to any destination. This is achieved by specifying all events be captured and the endpoint be Storage Queue.

Event Grid offers a flexible event consumption model, allowing you to consume events using either pull or push delivery mode. This flexibility is especially useful when working with high-volume integrated solutions.

You can also use Event Grid to filter on event type or other event attributes to ensure your event handlers or consumer apps receive only relevant events.

Event Grid supports custom domain names, which allows users to assign their own domain names to Event Grid namespace's HTTP endpoints, enhancing security and simplifying client configuration.

Here are some key features of Event Grid:

Capture is a feature that allows you to automatically save Event Hub data to either a Blob Storage account or an Azure Data Lake Service account.

With Event Hub Capture, you can specify the size and time interval for capturing data, making it easier to manage large amounts of data.

You can enable Capture from the Azure portal, which reduces the complexity of loading data and lets you focus on data processing.

Capture can be used to store data in a specified storage account or container, giving you more control over your data.

Here are some key benefits of using Capture:

By using Capture, you can save time and effort by automating the data capture process, allowing you to focus on more important tasks, such as data analysis and processing.

Command and control is a key capability that allows you to remotely manage your IoT devices.

You can use the request-response message pattern to control your MQTT clients, making it easy to send commands from a cloud application to an IoT device.

Event Grid can be used to send these commands, providing a reliable and scalable solution.

This pattern enables one-to-one communication between the cloud application and the IoT device.

It's a powerful tool for managing your devices remotely and ensuring they're working as intended.

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Ingress and egress are two key terms in Event Hub that determine data transfer rates.

Ingress refers to the rate at which data is sent into Event Hub, with a maximum of 1 MB per second or 1000 events per second.

Egress, on the other hand, is the rate at which data is sent out of Event Hub, with a maximum of 2 MB per second.

To put this into perspective, these values are suitable for predictable usage in the infrastructure, but may not be enough when there's a surge in data transfer.

Stream Analytics is a powerful tool that enables real-time processing of large amounts of data. It's like a super-fast data pipeline that can process millions of events per second with low latency.

Azure Event Hubs and Stream Analytics can be used together to create an end-to-end solution for real-time analytics. This means you can send events, such as web clicks or sensor readings, to Azure Event Hubs and then use Stream Analytics jobs to process those events in real-time.

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Some examples of use cases for Stream Analytics include anomaly detection, application logging, archiving data, telemetry processing, and live dashboarding. These use cases are all listed as supported use cases for Azure Event Hubs.

Here are some key benefits of using Stream Analytics:

Entity management is a powerful feature that can save you a lot of time and hassle.

It allows Dapr to automatically create the Event Hub and consumer group for you, as long as the application has the right role and permissions to manipulate the Event Hub namespace.

This is only possible when using Microsoft Entra ID Authentication, and not when using a connection string.

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Azure Event Grid and Event Hub are two event-based technologies that help make the most of event-driven communication. They're designed to handle real-time scenarios, but they serve different purposes.

Event Grid is a fully managed event routing service that allows you to respond to events in real-time. It's a lightweight communication method that can be used to process events from various sources.

Event Hub, on the other hand, is a highly scalable and reliable event ingestion system that can handle large volumes of events. It's designed to handle high-throughput and provides low-latency processing of events.

To choose between Event Grid and Event Hub, you need to consider the type of event-driven scenario you're working with. If you need to process events in real-time and respond to them, Event Grid might be the better choice. If you're dealing with large volumes of events and need a scalable and reliable ingestion system, Event Hub is the way to go.

Event Grid is a powerful tool that enables clients to communicate on custom MQTT topic names using a publish-subscribe messaging model. This model is supported by Event Grid for clients that publish and subscribe to messages over MQTT v3.1.1, MQTT v3.1.1 over WebSockets, MQTT v5, and MQTT v5 over WebSockets.

You can use Event Grid to send MQTT messages to the cloud for data analysis, storage, and visualizations. This is just one of the many use cases that Event Grid supports.

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Event Grid integrates with Azure IoT MQ to bridge its MQTT broker capability on the edge with Event Grid's MQTT broker capability in the cloud. Azure IoT MQ is a new distributed MQTT broker for edge computing, running on Arc enabled Kubernetes clusters.

The MQTT broker feature in Azure Event Grid is ideal for automotive and mobility scenarios, as well as other use cases. This is because it allows you to build secure and scalable solutions for connecting millions of vehicles to the cloud, using Azure's messaging and data analytics services.

Azure Event Grid allows you to receive events from a variety of sources, including Azure services, your own applications, and even partner SaaS providers. This is a game-changer for automating operations and streamlining workflows.

To receive events from Azure services, you can configure Event Grid to receive events from over 20+ Azure services, such as Azure Storage Accounts. This enables your downstream application to read and process the content of new blobs created on the account.

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With Event Grid, you can also receive events from your own applications, using Namespace Topics, Custom Topics, or Domains to address integration and routing requirements at scale. This allows you to integrate and route events from your own services and applications.

One of the key benefits of Event Grid is that it allows clients to connect to read messages at their own pace, giving you full control over event consumption. This is particularly useful for applications that need to receive events at certain times of the day.

You can also use Event Grid to process events, and it supports sending and receiving multiple messages in a single operation using the bulk pub/sub API. This can help improve the efficiency and scalability of your applications.

Consumers are applications that read data from an event hub, and multiple consumers can be allocated for the same event hub.

In fact, multiple consumers can read the same partition data at their own tempo, which is significant for scalability.

Consumers are connected through AMQP channels, making data availability easier for clients.

This connection through AMQP channels avoids unnecessary load on the application, making it a more efficient way to process data.

To send events to LogicMonitor logs, you'll need to use an Azure Function, specifically the AzureEventBridge function, which will act as a bridge between Azure Event Grid and LogicMonitor logs.

This function will parse the incoming event data and transform it into a format suitable for LogicMonitor logs, ensuring seamless integration.

Azure Event Grid has system topics that represent events published by specific Azure services, such as Azure Storage and Azure Container Registry.

These system topics provide a standardized and secure flow of information, ensuring that only Azure services can publish events to them.

You can configure Azure Storage to publish events to Azure Event Grid, and then configure Azure Event Grid to forward these events to the AzureEventBridge function.

Here's a high-level overview of the integration process:

By following these steps, you can successfully send events to LogicMonitor logs, enabling you to process and analyze them in a centralized location.

Receiving is a crucial step in the data ingestion process. You can receive events from Azure services, such as Azure Storage Account, where you can configure Event Grid to receive an event when a new blob has been created.

Event Grid can receive events from 20+ Azure services, so you can automate your operations. You can also receive events from your own applications, which publish events to Event Grid that subscriber applications process.

Your own service or application publishes events to Event Grid through Namespace Topics, Custom Topics, or Domains. This allows you to address integration and routing requirements at scale with a simple resource model.

To receive events at your own pace, one or more clients can connect to Azure Event Grid to read messages at their own pace. Event Grid affords clients full control on events consumption.

Here are some ways to receive events:

• Receive events from Azure services, such as Azure Storage Account

• Receive events from your own applications through Namespace Topics, Custom Topics, or Domains

• Receive events at your own pace with full control on events consumption

You can also receive events from partner (SaaS providers) through Partner Events, which allows a multitenant SaaS provider or platform to publish their events to Event Grid.

The following partners currently provide events through Partner Events: Auth0, Microsoft Graph API, Tribal Group, and SAP.

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Azure Event Grid offers two delivery modes: push and pull. With push delivery, events are sent to subscribers' destinations, allowing you to realize various use cases.

Event Grid's push delivery enables you to configure event sources, including custom applications, Azure services, and partner services, to publish events announcing system state changes. This allows for a diverse set of Azure services or webhooks to receive events.

Event Grid's pull delivery, on the other hand, features CloudEvents delivery. Clients connect to Event Grid to read events at their own pace, giving them full control over events consumption.

You can scale an Event Hub through Throughput units (standard tier) or processing units (premium tier)Partitions to meet your event handling needs. This flexibility allows you to manage your event flow efficiently.

Pull or push delivery - it's a fundamental concept in Azure Event Grid. Event Grid can be configured to send events to various destinations using push event delivery.

You can realize various use cases with Event Grid's push delivery, such as receiving events from Azure services or your own applications. Event Grid can receive events from over 20 Azure services, including Azure Storage Account, so you can automate your operations.

Event Grid also features Namespace Topics, Custom Topics, and Domains to address integration and routing requirements at scale. This means you can distribute events to hundreds or thousands of different groups.

With pull delivery, clients connect to Event Grid to read events at their own pace. This gives your application full control over event consumption, allowing you to receive events at certain times of the day or increase the rate of consumption by adding more clients.

Event Grid supports both push and pull delivery modes, so you can choose the one that best fits your needs. Here's a summary of the two delivery modes:

Both delivery modes offer flexibility and scalability, so you can choose the one that suits your application's requirements.

Scaling is a crucial aspect of managing event data, and it's essential to understand the options available.

To scale an Event Hub, you can use throughput units in the standard tier or processing units in the premium tier.

The choice between throughput units and processing units depends on your specific needs and the type of data you're working with.

You can also scale by increasing the number of partitions in your Event Hub.

Here's a quick rundown of the options:

Authorization is a crucial aspect of Azure Event Hubs, ensuring that clients have the necessary permissions to access data.

Azure Event Hubs provide two options for authorizing access: Azure Active Directory and Shared Access Signature.

To use Azure Active Directory, you'll need to set up authentication and authorization through this service, which provides a robust way to manage access to your Event Hubs.

Shared Access Signature is another option for authorizing access, allowing you to generate a shared access signature that grants access to a specific Event Hub for a specified period.

Here are the two options for authorizing access through Azure Event Hubs:

By using one of these options, you can ensure that only authorized clients have access to your Event Hubs data.