Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
1 answer
Find who is sending messages to my azure event hub
Hi Team, Wanted to understand where my event hub is being referenced and send/receive messages from other sources. i tried namespace name with code and configs and logs but could not find who is sending or receiving messages to my event hub. I could see…
Azure Event Hubs
asked 2025-07-15T05:31:14.6533333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 16%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
Seenuvasan Manoharan (Infosys Ltd)
0
Reputation points Microsoft External Staff
answered 2025-07-15T05:41:17.9066667+00:00
Deepanshu katara
17,025
Reputation points MVP
Moderator
1 answer
How can I increase Event Hubs number in Event Hubs Namespace beyond 10 without going into premium??
Due to architectural requirements, we would need to increase the number of event hubs in a namespace from 10 to 20. Switching to Premium is not being considered due to high cost (x100 in terms of monthly billing). Of course, two Event Hubs is also on the…
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
asked 2025-07-10T16:19:21.3833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(166.4, 72%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EII%3C/text%3E%3C/svg%3E)
Iñigo Martinez Lasala
0
Reputation points
commented 2025-07-11T18:41:39.6066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(195.2, 50%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVR%3C/text%3E%3C/svg%3E)
Venkat Reddy Navari
3,630
Reputation points Microsoft External Staff
Moderator
1 answer
Azure Function (Python) with Event Hub trigger: is there a maximum input batch size beyond configuration settings?
I'm using an Azure Function App in Python with an Event Hub trigger and have set cardinality=many to receive events in a batch. For sending to Event Hub, I'm aware there's a hard limit on the batch size (e.g., based on total message size). But for…
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
asked 2025-07-04T06:48:49.21+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(108.80000000000001, 40%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWV%3C/text%3E%3C/svg%3E)
Wessel Vonk
45
Reputation points
commented 2025-07-09T18:32:38.9+00:00
Venkat Reddy Navari
3,630
Reputation points Microsoft External Staff
Moderator
1 answer
Event Hub Trigger in Python Function: limits on total payload despite high batch size?
I'm using an Azure Function in Python with an Event Hub trigger and have configured maxEventBatchSize to a high value (e.g., 3000–5000). I understand that each individual outbound Event Hub Batch has a maximum size of 1 MB. My question is about inbound…
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
asked 2025-07-07T08:54:53.7333333+00:00
Wessel Vonk
45
Reputation points
commented 2025-07-09T07:49:45.4533333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(268.8, 8%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EST%3C/text%3E%3C/svg%3E)
Smaran Thoomu
25,115
Reputation points Microsoft External Staff
Moderator
1 answer
Graph Api create subscription returns Status Code: BadRequest; Reason: The value 'https://outlook.office365.com/api/v2.0/Users('Sandbox%40company.com')/Events' of parameter 'Resource' is invalid.]\n\nPOST
In our java springboot app we use dependency https://mvnrepository.com/artifact/com.microsoft.graph/microsoft-graph/5.72.0 When we try to create eventhub subscription for meeting room via that API we are getting…
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(220.8, 35%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
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.
723 questions
asked 2025-06-03T08:25:46.22+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(208, 82%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAP%3C/text%3E%3C/svg%3E)
Agrawal, Pranjal
0
Reputation points
commented 2025-07-02T10:49:11.0066667+00:00
Smaran Thoomu
25,115
Reputation points Microsoft External Staff
Moderator
1 answer
Connecting Microsoft Graph Subscriptions to Azure Event Hub facing time out issues starting today
I am working on a project that passes Graph events through an Azure Event Hub to trigger a function app. The subscriptions had been set up and running for months without issue. Two days ago, I switched my functions over to the isolated model as opposed…
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
asked 2025-06-20T20:45:29.66+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 94%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EOR%3C/text%3E%3C/svg%3E)
Oak, Ryan
5
Reputation points
commented 2025-07-02T08:47:05.5433333+00:00
Smaran Thoomu
25,115
Reputation points Microsoft External Staff
Moderator
1 answer
One of the answers was accepted by the question author.
Azur Event Hubs - Error "Connection recovery support is terminated." on one partition
Hello, I'm using java to send events on Event Hubs with the client EventHubProducerAsyncClient and everything works fine. For perfomance purpose I tried to switch to the EventHubBufferedProducerClientBuilder and I get an error when eventdata are sent on…
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
asked 2025-06-24T14:20:06.58+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(268.8, 15%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVL%3C/text%3E%3C/svg%3E)
Val LEVI
20
Reputation points
commented 2025-06-27T09:58:39.2066667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(99.2, 65%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECB%3C/text%3E%3C/svg%3E)
Chandra Boorla
14,685
Reputation points Microsoft External Staff
Moderator
1 answer
How to enable batch processing of event hub triggers on python v2 azure functions?
The documentation mentions nothing about this for python v2. And only a single line about "cardinality" for v1. …
Azure Functions
Azure Functions
An Azure service that provides an event-driven serverless compute platform.
5,953 questions
Azure Event Hubs
Azure Event Hubs
An Azure real-time data ingestion service.
723 questions
asked 2024-11-05T03:17:30.8466667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 13%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EI%3C/text%3E%3C/svg%3E)
ITAdminKema
0
Reputation points
answered 2025-06-23T09:47:51.0266667+00:00
Amira Bedhiafi
34,731
Reputation points
Volunteer 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.
723 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(9.6, 97%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER1%3C/text%3E%3C/svg%3E)
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.
723 questions
asked 2025-06-03T09:03:19.7833333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 18%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPB%3C/text%3E%3C/svg%3E)
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.
723 questions
asked 2025-06-01T11:18:09.73+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(230.39999999999998, 91%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKY%3C/text%3E%3C/svg%3E)
Kulkarni, Yash
0
Reputation points
commented 2025-06-04T14:24:18.7+00:00
Jose Benjamin Solis Nolasco
3,511
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.
723 questions
asked 2025-05-28T10:08:53.28+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 87%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECJ%3C/text%3E%3C/svg%3E)
Christian Johansen
0
Reputation points
commented 2025-05-29T08:53:34.78+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(252.8, 99%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJN%3C/text%3E%3C/svg%3E)
J N S S Kasyap
4,085
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.
723 questions
asked 2025-04-28T02:03:56.94+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 69%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
ChrisScanlon
0
Reputation points
commented 2025-05-13T12:02:03.0166667+00:00
Alex Burlachenko
11,765
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.
723 questions
asked 2024-09-24T07:16:37.4933333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 8%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EQC%3C/text%3E%3C/svg%3E)
Quattrocchi, Calogero
275
Reputation points
commented 2025-05-12T06:02:45.82+00:00
Sander van de Velde | MVP
36,776
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.
723 questions
Azure Cosmos DB
Azure Cosmos DB
An Azure NoSQL database service for app development.
1,922 questions
asked 2024-02-16T15:27:48.96+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(105.60000000000001, 44%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFC%3C/text%3E%3C/svg%3E)
Francesco Cesareo
56
Reputation points
answered 2025-05-11T18:20:33.2333333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 69%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENS%3C/text%3E%3C/svg%3E)
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.
723 questions
asked 2025-04-28T16:08:20.4566667+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(96, 50%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESM%3C/text%3E%3C/svg%3E)
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.
723 questions
asked 2025-04-23T15:49:12.17+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(284.8, 89%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAA%3C/text%3E%3C/svg%3E)
Anthony Altieri
0
Reputation points
commented 2025-04-30T10:28:56.4233333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 68%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESJ%3C/text%3E%3C/svg%3E)
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.
723 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
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(233.6, 78%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EH%3C/text%3E%3C/svg%3E)
h85824
0
Reputation points
commented 2025-04-29T16:34:32.18+00:00
Sander van de Velde | MVP
36,776
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.
723 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(32, 18%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)