788 questions with Azure Event Hubs tags

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0 answers

ASA parallel JOIN drops matches when the two Event Hubs inputs use different partition-key hashing

ASA job (compat 1.2) joins two Event Hubs on EntityId (both 4 partitions) into a third hub. With the input Partition key column declared (embarrassingly-parallel), the JOIN silently loses ~78% of matches — no errors. Measured: parallel ≈ 22% match,…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-08-25T10:11:53.61+00:00
Andrei Josephsen 0 Reputation points
commented 2026-09-11T03:38:48.38+00:00
SIVASANKAR YEDDULA 165 Reputation points Microsoft External Staff Moderator
3 answers

OutGoing message more than InComing messages in EventHub

I am using Kafka Protocol for polling the records from EventHub Below is the dependency I am using <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-clients</artifactId> …

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-09-02T07:13:01.05+00:00
Mahendra Sawarkar 60 Reputation points
answered 2026-09-07T06:26:14.47+00:00
Mahendra Sawarkar 60 Reputation points
2 answers

Error on send: One or more errors occurred.

Hi Trying to implement the tutorial provided in the learn.microsoft "https://learn.microsoft.com/en-us/azure/stream-analytics/stream-analytics-real-time-fraud-detection?toc=%2Fazure%2Fevent-hubs%2FTOC.json" I keep getting an error when I run…

Azure Service Bus
Azure Service Bus

An Azure service that provides cloud messaging as a service and hybrid integration.

752 questions
Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2022-06-22T14:23:24.09+00:00
sriiraj jaami 1 Reputation point
answered 2026-08-22T02:05:46.4333333+00:00
Matias Marquez 0 Reputation points
1 answer

Clarification on Kafka Transactional API Support and Transaction Guarantees in Azure Event Hubs

The Kafka Transactional API is documented as being supported by Azure Event Hubs - https://learn.microsoft.com/en-us/azure/event-hubs/apache-kafka-transactions. In Apache Kafka, transactions are managed by the Transaction Coordinator, which maintains…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-08-11T09:14:27.1433333+00:00
Priyanka Sundararajan 0 Reputation points
answered 2026-08-18T18:30:18.0633333+00:00
Smaran Thoomu 35,870 Reputation points Microsoft External Staff Moderator
2 answers

KafkaConsumer connecting to Azure EventHub returning Partition count as Zero (0)

Hi Team, We are using the Kafka-clients Java library to connect to Azure Event Hubs. We have observed that the partition count is returned as 0, despite the Event Hub having 4 partitions. We are using the primary connection string from the SaaS Policy to…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-07-27T18:02:34.8733333+00:00
Kumar Sugandh 90 Reputation points
commented 2026-08-05T07:02:54.81+00:00
Ganesh Chelluri 190 Reputation points Microsoft External Staff Moderator
0 answers

Azure Add-on API method for sending logs to Splunk not working.

We configured the Azure using Microsoft cloud Add-on API method to forward logs from Azure to Splunk. However, logs are not being sent. We followed the standard setup but still no logs are appearing in Splunk. Need your assistance in troubleshooting and…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2025-08-19T05:53:28.74+00:00
Sivakalyan Sivakalyan 0 Reputation points
commented 2026-07-29T14:40:44.8033333+00:00
Sina Salam 31,456 Reputation points Volunteer Moderator
2 answers

How to forward logs from Azure K8s Engine Diagnostic Settings to Event Hub using managed identity

I am able to connect Azure K8s Diagnostic Settings to forward logs to Event Hub using SAS key authentication, however when I try with Managed Identity I see User Errors in Overview page of Event Hub namespace. "Activity log" doesn't show…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2025-12-02T10:57:57.9166667+00:00
Flavio Duarte 40 Reputation points
commented 2026-07-24T11:46:58.2+00:00
Emil Damsbo 0 Reputation points Microsoft Employee
1 answer

I cannot create new premium event hubs namespaces due to 'NamespaceCreationIsRestricted' errors

I cannot create new premium event hubs namespaces due to 'NamespaceCreationIsRestricted' errors. I've tested several regions and they all fail despite Premium being listed as supported for those regions. Is there some place I can get an official list of…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-07-22T21:02:39.5166667+00:00
Alex Stevenson 0 Reputation points Microsoft Employee
answered 2026-07-23T09:15:48.01+00:00
Alex Burlachenko 25,120 Reputation points MVP Volunteer Moderator
2 answers One of the answers was accepted by the question author.

Azure Files diagnostics are present in Storage Account archive, but only a subset is seen by the Event Hub consumer group

Hi Team, We are investigating an Azure Files diagnostics case where say 10 file activity events were performed in one short user session. Azure settings used in this environment: Azure Storage Account diagnostic settings are configured for File service…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-05-06T11:14:36.0733333+00:00
Sivabalan J 20 Reputation points
accepted 2026-07-22T10:17:57.7133333+00:00
Sivabalan J 20 Reputation points
1 answer

Azure Stream Analytic at-least-once guarantees is not 100% accurate

I have Azure Stream Analytic (ASA) that process data from the event hub as input. And this job is for the finance biz so it is heavily based on Event Delivery Guarantees at least once of Azure Stream Analytic. But recently we found out that some data…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
Azure Stream Analytics
Azure Stream Analytics

An Azure real-time analytics service designed for mission-critical workloads.

405 questions
asked 2023-08-22T01:58:01.4166667+00:00
Anonymous
answered 2026-07-20T13:31:22.9766667+00:00
Christos Panagiotidis 3,551 Reputation points
1 answer

Very high number of Throttled Requests in Event Hub - how can we debug?

Recently, we have started experiencing a high number of Throttled Requests in a few of our systems that use Azure Event Hubs. After adding logs to our consumers and producers, we have concluded that on average we send / receive 100 messages per second…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-06-01T18:30:25.7466667+00:00
cdom22 5 Reputation points
answered 2026-07-18T07:31:17.2166667+00:00
Christos Panagiotidis 3,551 Reputation points
3 answers

firewall is necessary for eventhub if not necessary then what is the alternate of firewall to restric the traffic.

firewall is necessary for eventhub if not necessary then what is the alternate of firewall to restric the traffic.

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-07-08T16:57:32.43+00:00
answered 2026-07-11T07:26:37.6433333+00:00
SAI JAGADEESH KUDIPUDI 3,645 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

How to make dedicated event hub cluster zone redundant?

Hello, We have a dedicated self-serve scalable Event Hub cluster with 1 CU and want to enable zone redundancy for it and its Event Hub namespaces, but we're not sure how to achieve it. Based on Azure docs, we found that there's a requirement for the…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-07-02T10:54:26.5866667+00:00
Augustina 20 Reputation points
accepted 2026-07-03T08:23:33.7366667+00:00
Augustina 20 Reputation points
1 answer One of the answers was accepted by the question author.

VitalSignEquipment vs VitalSignsReadings example

Hi guys, Is the example on VitalSignsEquipment vs readings accurate? How can it be that if there are readings for M001 on OxygenSaturation if this is a HeartMonitor and also on ReadingID = 3 there is a HeartRate reading even though the EquipmentID is…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-07-01T12:17:27.8233333+00:00
Zuzana Bocanski 40 Reputation points
accepted 2026-07-02T08:36:54.8133333+00:00
Zuzana Bocanski 40 Reputation points
2 answers One of the answers was accepted by the question author.

EventHub have Server Busy Errors time to time

Eventhub name space: data-ehns-edp-prod-prna02 As you can see, in the server busy errors happens, the incoming bytes is not very high, so we want to know what happens in that time. And what's the criteria to trigger that server busy error.

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-04-15T07:49:29.78+00:00
Yuanbo Lin 60 Reputation points Microsoft Employee
accepted 2026-06-11T08:01:28.3066667+00:00
Yuanbo Lin 60 Reputation points Microsoft Employee
1 answer

streaming storage account audit logs onto Event hub

I would like to send audit logs relating to access to a blob account onto an event hub, I was wondering if there is a guide on how to configure, I have configured an event hub and under the diagnostic settings for blob, configured audit logs to be sent…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-06-03T16:45:36.4166667+00:00
MrFlinstone 766 Reputation points
answered 2026-06-03T18:48:41.1133333+00:00
Amira Bedhiafi 43,046 Reputation points MVP Volunteer Moderator
1 answer

Problema de autenticación con EventHub

Escribo para hacer una consulta acerca de la integración de nuestros microservicios nest (que usan kafkajs) desplegados en aks con eventHub. Creamos un namespace en eventHub y creamos todos los tópicos que utilizan nuestros microservicios. Además creamos…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-05-28T22:44:56.8966667+00:00
Terzan Gomez, Daniel 0 Reputation points
edited a comment 2026-06-02T00:28:58.86+00:00
Rukmini 43,915 Reputation points Microsoft External Staff Moderator
2 answers

I want to create a clean and optimized KQL query in Azure Log Analytics to show only the status/health of Azure Event Hub Namespaces.

The query should: Display Event Hub Namespace name Show current status/availability Indicate whether the namespace is Healthy, Unavailable, or Failed

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-05-25T09:18:48.63+00:00
Amit Kumar 0 Reputation points
answered 2026-05-27T06:04:28.1066667+00:00
kagiyama yutaka 5,330 Reputation points
1 answer One of the answers was accepted by the question author.

Unable to delete deployment stack

I deployed a deployment stack with --aou deleteResources and --deny-assignment none. The stack was deployed via a Bicep template which creates a bunch of event hub namespaces container instances and stream analytics jobs. When trying to delete the…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-04-27T11:18:15.31+00:00
Kaustabh Kakoty 21 Reputation points Microsoft Employee
accepted 2026-05-05T06:00:35.3833333+00:00
Kaustabh Kakoty 21 Reputation points Microsoft Employee
1 answer One of the answers was accepted by the question author.

Premium Event Hub is failing in France Central

Code: None Message: There is not enough capacity in the specified region to create the namespace. Please try an alternate region. The error above is the one that I'm getting when I'm attempting a create namespace operation in the region. I'm assuming…

Azure Event Hubs
Azure Event Hubs

An Azure real-time data ingestion service.

788 questions
asked 2026-04-30T21:08:32.4833333+00:00
Shardul Churi 20 Reputation points Microsoft Employee
accepted 2026-05-04T15:49:44.9033333+00:00
Shardul Churi 20 Reputation points Microsoft Employee