---
title: "Verifying Event Publishing Configuration in Event Broker"
slug: "verifying-event-publishing-configuration-in-event-broker"
tags: ["Event-Broker", "5.4"]
updated: 2026-10-28T01:53:34Z
published: 2026-10-28T01:53:34Z
canonical: "docs.vastdata.com/verifying-event-publishing-configuration-in-event-broker"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Verifying Event Publishing Configuration in Event Broker

After you've saved an event notification definition for a view, VAST Cluster sends a test event message to the associated event broker to ensure that the setup works as expected.

The test event message is compatible to the AWS bucket notification [test event format](https://docs.aws.amazon.com/AmazonS3/latest/userguide/notification-content-structure.html), for example:

```plaintext
{  
   "Service":"Vast S3",
   "Event":"s3:TestEvent",
   "Time":"<timestamp>",
   "Bucket":"<bucket name>",
   "RequestId":"<request ID>",
   "HostId":"<host ID>"
}
```

To verify that your event publishing configuration is working as expected:

- Check if the test event message has reached the broker from within the Kafka client, by looking at the messages under the topic you specified in the event notification definition in VAST Cluster.
- Ensure that the intended event consumer application(s) is able to receive the test event without any issues.