Create an Event Hub in Azure

This tutorial will guide you through the process of creating an Azure Event Hub using the Azure portal. Event Hubs are a highly scalable data streaming platform and event ingestion service.

Prerequisites

• An Azure subscription. If you don't have one, create a free account.
• Permissions to create resources in your Azure subscription.

Steps to Create an Event Hub

• Sign in to the Azure Portal

  Open your web browser and navigate to https://portal.azure.com/. Sign in with your Azure account credentials.

• Navigate to Event Hubs

  In the Azure portal search bar, type "Event Hubs" and select "Event Hubs" from the search results. Alternatively, you can find it under "All services" -> "Integration" -> "Event Hubs".

• Create an Event Hubs Namespace

  Event Hubs are contained within namespaces. You need to create a namespace before you can create an Event Hub. Click the "+ Create" button.

  

• Configure Namespace Settings

  On the "Create namespace" page, fill in the following details:

  • Subscription: Select the Azure subscription you want to use.
  • Resource group: Choose an existing resource group or create a new one by clicking "Create new".
  • Namespace name: Enter a unique name for your Event Hubs namespace. This name must be globally unique.
  • Location: Select the Azure region where you want to deploy your namespace.
  • Pricing tier: Choose the appropriate pricing tier (Basic, Standard, Premium). For most use cases, "Standard" is recommended.
  

• Review and Create

  Click "Review + create" to validate your settings. Once validation passes, click "Create" to deploy the namespace.

  Deployment may take a few minutes.

• Access Your Namespace

  Once the deployment is complete, navigate to your newly created Event Hubs namespace. You can find it by searching for its name in the Azure portal.

• Create an Event Hub

  Inside your Event Hubs namespace, click on "+ Event Hub" in the top menu bar.

  

• Configure Event Hub Settings

  In the "Create Event Hub" pane, provide the following:

  • Name: Enter a name for your Event Hub (e.g., myeventhub).
  • Partition count: This determines the number of parallel streams for processing. Start with a reasonable number (e.g., 2 or 4) and adjust based on your needs.
  • Message retention: Specify how long events should be retained in the hub (e.g., 1 day, 7 days).

  You can leave other settings as default for now.

  

• Create the Event Hub

  Click the "Create" button. Your Event Hub will be provisioned within the namespace.

Next Steps

• Send and Receive Messages with Azure Event Hubs
• Understanding Event Hubs Partitions

# Example of creating an Event Hubs Namespace and Event Hub using Azure CLI

echo "Creating a resource group..."
az group create --name "myResourceGroup" --location "West US"

echo "Creating an Event Hubs namespace..."
az eventhubs namespace create \
    --resource-group "myResourceGroup" \
    --name "my-unique-eventhub-namespace" \
    --location "West US" \
    --sku "Standard" "1000RU"

echo "Creating an Event Hub within the namespace..."
az eventhubs eventhub create \
    --resource-group "myResourceGroup" \
    --namespace-name "my-unique-eventhub-namespace" \
    --name "myeventhub" \
    --partition-count 2 \
    --message-retention-in-days 7