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1 change: 0 additions & 1 deletion data-explorer/ingest-data-event-grid-overview.md
Original file line number Diff line number Diff line change
Expand Up @@ -127,7 +127,6 @@ You can create a blob from a local file, set ingestion properties to the blob me
> * Triggering ingestion following a `CopyBlob` operation isn't supported for storage accounts that have the hierarchical namespace feature enabled on them.
> * When the event hub endpoint doesn't acknowledge receipt of an event, Azure Event Grid activates a retry mechanism. If this retry delivery fails, Event Grid can deliver the undelivered events to a storage account using a process of *dead-lettering*. For more information, see [Event Grid message delivery and retry](/azure/event-grid/delivery-and-retry#retry-schedule-and-duration).
> * Using the "OpenWrite" API to write to a blob isn't recommended, as it triggers a notification for an empty blob and causes an empty-blob error. Additionally, flush the stream only once to prevent duplicate notifications and multiple ingestions of the same blob.
> * Azure Data Explorer tries to filter out duplicate notifications for the same blob sent by upstream services like Event Grid or Storage. When it detects a duplicate event, it skips ingestion and logs the error `BlobAlreadyReceived_DuplicateEventGridNotification`, which means the blob is already processed.

## Rename blobs

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