when I use copy data (ADF) I get this message: The stream does not support concurrent IO read or write operations

Question

I am trying to copy json files from Blob storage to cosmos DB and I am getting the following message.

Operation on target PeriodoPersona failed: Failure happened on 'Sink' side. ErrorCode=UserErrorDocumentDBWriteError,'Type=Microsoft.DataTransfer.Common.Shared.HybridDeliveryException,Message=Documents failed to import. Error message:The stream does not support concurrent IO read or write operations..,Source=Microsoft.DataTransfer.DocumentDbManagement,''Type=System.NotSupportedException,Message=The stream does not support concurrent IO read or write operations.,Source=System,'

Answer 1

Hello @Huaman Santos, Kremlin Stwart ,

Thanks for the question and using MS Q&A platform.

As per my understanding, you are receiving above error while trying to copy data from blob storage to cosmos DB.

From previous cases, we have noticed this behavior due to concurrent connections, could you please try below and see if that helps.

Set max concurrent connections to 1 on your pipeline data source configuration and try running the job. This should make the copy activity that moves data from blob storage to Cosmos DB run as expected.

Hope this will help. Please let us know how it goes.

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