---
title: Telegraf Documentation
description: Telegraf plugin for sending metrics to Azure Event Hubs
url: https://docs.influxdata.com/telegraf/v1/output-plugins/event_hubs/
estimated_tokens: 1259
product: Telegraf
version: v1
---

-   Telegraf v1.21.0+

# Azure Event Hubs Output Plugin

This plugin writes metrics to the [Azure Event Hubs](https://azure.microsoft.com/en-gb/services/event-hubs/) service in any of the supported [data formats](/telegraf/v1/data_formats/output). Metrics are sent as batches with each message payload containing one metric object, preferably as JSON as this eases integration with downstream components.

Each patch is sent to a single Event Hub within a namespace. In case no partition key is specified the batches will be automatically load-balanced (round-robin) across all the Event Hub partitions.

**Introduced in:** Telegraf v1.21.0 **Tags:** cloud,datastore **OS support:** all

## Global configuration options

Plugins support additional global and plugin configuration settings for tasks such as modifying metrics, tags, and fields, creating aliases, and configuring plugin ordering. See [CONFIGURATION.md](/telegraf/v1/configuration/#plugins) for more details.

## Configuration

```toml
# Configuration for Event Hubs output plugin
[[outputs.event_hubs]]
  ## Full connection string to the Event Hub instance. The shared access key
  ## must have "Send" permissions on the target Event Hub.
  connection_string = "Endpoint=sb://namespace.servicebus.windows.net/;SharedAccessKeyName=RootManageSharedAccessKey;SharedAccessKey=superSecret1234=;EntityPath=hubName"

  ## Partition key to use for the event
  ## Metric tag or field name to use for the event partition key. The value of
  ## this tag or field is set as the key for events if it exists. If both, tag
  ## and field, exist the tag is preferred.
  # partition_key = ""

  ## Set the maximum batch message size in bytes
  ## The allowable size depends on the Event Hub tier, see
  ##   https://learn.microsoft.com/azure/event-hubs/event-hubs-quotas#basic-vs-standard-vs-premium-vs-dedicated-tiers
  ## for details. If unset the default size defined by Azure Event Hubs is
  ## used (currently 1,000,000 bytes)
  # max_message_size = "1MB"

  ## Timeout for sending the data
  # timeout = "30s"

  ## Data format to output.
  ## Each data format has its own unique set of configuration options, read
  ## more about them here:
  ## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_OUTPUT.md
  data_format = "json"
```

#### Related

-   [Configure plugins](/telegraf/v1/configure_plugins/)
-   [Azure Event Hubs Plugin Source](https://github.com/influxdata/telegraf/tree/v1.38.4/plugins/outputs/event_hubs/README.md)