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EventProcessorClient.ClaimOwnershipAsync Method

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Definition

Namespace:
Azure.Messaging.EventHubs
Assembly:
Azure.Messaging.EventHubs.Processor.dll
Package:
Azure.Messaging.EventHubs.Processor v5.11.5
Package:
Azure.Messaging.EventHubs.Processor v5.12.0-beta.1
Source:
EventProcessorClient.cs
Source:
EventProcessorClient.cs

Attempts to claim ownership of the specified partitions for processing. This method is used by load balancing to allow event processor instances to distribute the responsibility for processing partitions for a given Event Hub and consumer group pairing amongst the active event processors.

protected override System.Threading.Tasks.Task<System.Collections.Generic.IEnumerable<Azure.Messaging.EventHubs.Primitives.EventProcessorPartitionOwnership>> ClaimOwnershipAsync (System.Collections.Generic.IEnumerable<Azure.Messaging.EventHubs.Primitives.EventProcessorPartitionOwnership> desiredOwnership, System.Threading.CancellationToken cancellationToken);
override this.ClaimOwnershipAsync : seq<Azure.Messaging.EventHubs.Primitives.EventProcessorPartitionOwnership> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<seq<Azure.Messaging.EventHubs.Primitives.EventProcessorPartitionOwnership>>
Protected Overrides Function ClaimOwnershipAsync (desiredOwnership As IEnumerable(Of EventProcessorPartitionOwnership), cancellationToken As CancellationToken) As Task(Of IEnumerable(Of EventProcessorPartitionOwnership))

Parameters

desiredOwnership
IEnumerable<EventProcessorPartitionOwnership>

The set of partition ownership desired by the event processor instance; this is the set of partitions that it will attempt to request responsibility for processing.

cancellationToken
CancellationToken

A CancellationToken instance to signal the request to cancel the processing. This is most likely to occur when the processor is shutting down.

Returns

Task<IEnumerable<EventProcessorPartitionOwnership>>

The set of ownership records for the partitions that were successfully claimed; this is expected to be the desiredOwnership or a subset of those partitions.

Applies to