716 questions with Azure Event Hubs tags

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1 answer

How to get real-time data from a SQL Server running on a Self-Hosted VM?

I have a SQL server running on a VM (which is Self-hosted and not managed by any cloud). Database and table which I want to use have CDC enabled on them. I want to have those tables data into KQL DB as real-time only. No batch or incremental load. I…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-06-03T08:25:46.22+00:00
Agrawal, Pranjal 0 Reputation points
commented 2025-06-05T18:59:40.91+00:00
Chandra Boorla 13,790 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Event Hub Namespace Disaster Recovery (Geo-recovery)

In Event Hubs disaster recovery, we can establish pairing through geo-recovery, which creates a primary and secondary namespace. After initiating a failover, do I need to manually update the connection string in my application, or make any configuration…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-06-04T08:10:45.9+00:00
RTG-1064 40 Reputation points
commented 2025-06-05T12:11:12.2733333+00:00
TP 123.5K Reputation points Volunteer Moderator
1 answer One of the answers was accepted by the question author.

We are seeing lot of below mentioned error while consuming event hub

We are getting below error while consuming the event hub. org.apache.kafka.common.KafkaException : Unexpected error from SyncGroup: The request timed out. This issue is seeing very frequently for every region. Below are some respective kafka…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-06-03T09:03:19.7833333+00:00
Pawan Bajait 20 Reputation points
accepted 2025-06-04T14:49:30.9266667+00:00
Pawan Bajait 20 Reputation points
1 answer

Some data points seem to disappear downstream when using Event hubs

Hi! Let me explain my current setup to you - Setup diagnostic rule in AKS to send log data to a log analytics workspace (LAW) Setup a data export rule from to an event hub Data goes from event hub to ASA (azure stream analytics) And from ASA to…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-06-01T11:18:09.73+00:00
Kulkarni, Yash 0 Reputation points
commented 2025-06-04T14:24:18.7+00:00
Jose Benjamin Solis Nolasco 3,336 Reputation points
1 answer

On Azure Eventhub Can i have a kafka producer and a Eventhub client consumer for the same events ?

I produce events via .net confluent kafka client and send via :9093 kafka endpoint can those events be consumed by a non kafka .net azure eventhub EventProcessorClient? does mapping of headers happen automatically ? from byte array to string ?

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-05-28T10:08:53.28+00:00
Christian Johansen 0 Reputation points
commented 2025-05-29T08:53:34.78+00:00
J N S S Kasyap 3,300 Reputation points Microsoft External Staff Moderator
2 answers

Connecting to MQTT event hubs with a ZLAN8309 Gateway RS485

Hi, wondering if anyone has had experience with connecting a ZLAN8309 gateway that polls RS485 to event hubs MQTT. The device can connect to unsecure and secure ports locally but appears to have a problem with certificates and connection directly into…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-28T02:03:56.94+00:00
ChrisScanlon 0 Reputation points
commented 2025-05-13T12:02:03.0166667+00:00
Alex Burlachenko 8,315 Reputation points
1 answer One of the answers was accepted by the question author.

Event Hub: seeing requests but no messages

Hello, We have an Event Hub namespace set up but we can see successful/incoming requests without any messages or throughput. Why is this happening? Thanks. Regards.

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2024-09-24T07:16:37.4933333+00:00
Quattrocchi, Calogero 275 Reputation points
commented 2025-05-12T06:02:45.82+00:00
Sander van de Velde | MVP 36,526 Reputation points MVP Volunteer Moderator
1 answer

Copy data from EventHub to CosmosDB with 408 error

Hi, I need a clarification about this discussion. I have a function with these features (Event Hubs trigger and Cosmos DB output binding). Randomly, I obtain 408 error with the following diagnostic info { "Summary": { …

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
Azure Cosmos DB
Azure Cosmos DB
An Azure NoSQL database service for app development.
1,891 questions
asked 2024-02-16T15:27:48.96+00:00
Francesco Cesareo 56 Reputation points
answered 2025-05-11T18:20:33.2333333+00:00
Nichole soria 0 Reputation points
1 answer One of the answers was accepted by the question author.

Integrate Apache Kafka with Event Hub

Working on POC to integrate confluence Kafka (data exists in topic) with Azure eventhub - query - configuration changes need to done on confluence Kafka end apart from bootstrap changes/ user credential changes

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-28T16:08:20.4566667+00:00
satish manukonda 30 Reputation points
commented 2025-05-01T12:06:36.7133333+00:00
satish manukonda 30 Reputation points
0 answers

Azure Eventhub High Request Volume

I have an Event hub that is receiving about 50 requests a minute and I am not sure what from. They aren't messages because the messages and throughput are all normal. I have sent some requests to logs and the Caller_s field is always Resource…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-23T15:49:12.17+00:00
Anthony Altieri 0 Reputation points
commented 2025-04-30T10:28:56.4233333+00:00
Singireddi JagadishKumar 0 Reputation points Microsoft External Staff Moderator
1 answer

How to fix We cannot connect to Event Hub partition [0] because the maximum number of allowed receivers per partition in a consumer group has been reached

We cannot connect to Event Hub partition [0] because the maximum number of allowed receivers per partition in a consumer group has been reached. Ensure that other Stream Analytics jobs or Service Bus Explorer are not using the same consumer group. The…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
Azure Stream Analytics
Azure Stream Analytics
An Azure real-time analytics service designed for mission-critical workloads.
397 questions
asked 2025-02-12T16:07:20.29+00:00
h85824 0 Reputation points
commented 2025-04-29T16:34:32.18+00:00
Sander van de Velde | MVP 36,526 Reputation points MVP Volunteer Moderator
1 answer One of the answers was accepted by the question author.

New receiver with higher epoch of '0' is created hence current receiver with epoch '0' is getting disconnected

Hello, We are receiving the following error whenever new instances of our application are starting up and the partitions need to be rebalanced: "New receiver '2643943a-a143-43ef-ad1d-858bdec9c686' with higher epoch of '0' is created hence current…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-28T10:04:58.21+00:00
Sebastian 20 Reputation points
accepted 2025-04-28T13:21:17.46+00:00
Sebastian 20 Reputation points
1 answer

Azure Event Hub Python SDK - is the order of adding events to an EventDataBatch also the order in which the events will be written to the eventhub?

Hi, I would like to use the python EventHubProducerClient to send events in batches to an eventhub while guaranteeing the order of events within their batch. My plan is to create an EventDataBatch first and then add events to it in my desired order. Is…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-22T16:32:38.1+00:00
Boomgaard, Guusje 0 Reputation points
edited a comment 2025-04-24T16:05:48.02+00:00
J N S S Kasyap 3,300 Reputation points Microsoft External Staff Moderator
2 answers

How do Azure Functions scale in relation to Event Hubs partitions?

Hi, I'm using Azure Functions with an Event Hub trigger and would like to confirm how scaling and partition assignment works in this integration. From my understanding: Only one function instance processes events from a given partition at any one time,…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-17T06:19:34.8833333+00:00
Wessel Vonk 45 Reputation points
commented 2025-04-21T05:36:20.5866667+00:00
phemanth 15,755 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Azure Event Hub Python SDK - does EventDataBatch go to a single partition even without partition_key or partition_id?

Hi, I'm working with Azure Event Hubs using the Python SDK. I’ve been reviewing the documentation here: https://learn.microsoft.com/en-us/python/api/azure-eventhub/azure.eventhub.eventdatabatch?view=azure-python. I'm creating an EventDataBatch using…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-16T15:12:01.4366667+00:00
Wessel Vonk 45 Reputation points
edited a comment 2025-04-16T20:35:51.5633333+00:00
Wessel Vonk 45 Reputation points
1 answer One of the answers was accepted by the question author.

MQTT messaged displayed in Event Hub Data Explorer are data_base64

I'm able to publish MQTT messages from my client an route them to an Event Hub. The Event Hub Data Explorer show the message payloads as data_base64. Is there a way to display them as JSON? If not is there another azure component I can use?

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-04-07T19:08:23.05+00:00
Mark Pope 70 Reputation points
accepted 2025-04-14T23:50:38.0366667+00:00
Mark Pope 70 Reputation points
1 answer

Azure Event hub egress count is less than ingress count

In Event hub incoming messages count and outgoing messages count are not same, it seems to be less when consuming the logs through EPH sdk in different micro service. Kindly share your thoughts on this.

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2023-12-14T12:38:48.84+00:00
beats-dev 0 Reputation points
commented 2025-04-04T16:22:40.7333333+00:00
Sander van de Velde | MVP 36,526 Reputation points MVP Volunteer Moderator
1 answer

Eventhub throwing exception "Load balancing for event processor failed.","exception":"status-code: 500"

Hi Community, I am seeing an unexpected exception in my Java application logs. I have developed a Azure Eventhub producer-consumer application in Java SpringBoot. I am seeing below exception messages in my logs and I am not able to narrow down the root…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-03-29T15:58:22.52+00:00
Sanjay Godiya 5 Reputation points
commented 2025-04-04T00:21:56.06+00:00
J N S S Kasyap 3,300 Reputation points Microsoft External Staff Moderator
1 answer

Defender for Cloud is sending empty messages to Event Hub

Hello guys, We are encountering an unusual issue while configuring Microsoft Defender for Cloud to export its security events to an Azure Event Hub, which we then forward to our SIEM solution for further analysis. We have enabled the Continuous Export…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-03-21T14:46:54.0566667+00:00
Yasen Trichkov 0 Reputation points
commented 2025-04-02T03:29:40.1233333+00:00
J N S S Kasyap 3,300 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

How to make Eventhub Consumer resilient?

I am building a consumer application(Spring boot application running on AKS) that consumes and processes events from Azure Event Hub topics (Enterprise solution hosted on a different subscription) and updates data in a database. Note: Eventhub is…

Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
716 questions
asked 2025-03-26T12:41:58.8733333+00:00
Shruti 40 Reputation points
accepted 2025-03-28T10:28:54.5666667+00:00
Shruti 40 Reputation points