https://learn.microsoft.com/ru-ru/dotnet/api/azure.messaging.eventhubs.primitives.eventprocessor-1.onpartitionprocessingstoppedasync?view=azure-dotnet
EventProcessorTPartition.OnPartitionProcessingStoppedAsync Method...
Performs the tasks needed when processing for a partition is being stopped. This commonly occurs when the partition is claimed by another event processor...
method