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Troubleshoot the Azure Blob Storage connector in Azure Data Factory and Azure Synapse

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APPLIES TO: Azure Data Factory Azure Synapse Analytics

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This article provides suggestions to troubleshoot common problems with the Azure Blob Storage connector in Azure Data Factory and Azure Synapse.

Error code: AzureBlobOperationFailed

  • Message: "Blob operation Failed. ContainerName: %containerName;, path: %path;."

  • Cause: A problem with the Blob Storage operation.

  • Recommendation: To check the error details, see Blob Storage error codes. For further help, contact the Blob Storage team.

Invalid property during copy activity

  • Message: Copy activity \<Activity Name> has an invalid "source" property. The source type is not compatible with the dataset \<Dataset Name> and its linked service \<Linked Service Name>. Please verify your input against.

  • Cause: The type defined in the dataset is inconsistent with the source or sink type that's defined in the copy activity.

  • Resolution: Edit the dataset or pipeline JSON definition to make the types consistent, and then rerun the deployment.

Error code: FIPSModeIsNotSupport

  • Message: Fail to read data form Azure Blob Storage for Azure Blob connector needs MD5 algorithm which can't co-work with FIPS mode. Please change diawp.exe.config in self-hosted integration runtime install directory to disable FIPS policy following https://learn.microsoft.com/dotnet/framework/configure-apps/file-schema/runtime/enforcefipspolicy-element.

  • Cause: Then FIPS policy is enabled on the VM where the self-hosted integration runtime was installed.

  • Recommendation: Disable the FIPS mode on the VM where the self-hosted integration runtime was installed. Windows doesn't recommend the FIPS mode.

Error code: AzureBlobInvalidBlockSize

  • Message: Block size should between %minSize; MB and 100 MB.

  • Cause: The block size is over the blob limitation.

Error code: AzureStorageOperationFailedConcurrentWrite

  • Message: Error occurred when trying to upload a file. It's possible because you have multiple concurrent copy activities runs writing to the same file '%name;'. Check your ADF configuration.

  • Cause: You have multiple concurrent copy activity runs or applications writing to the same file.

Error code: AzureAppendBlobConcurrentWriteConflict

  • Message: Detected concurrent write to the same append blob file, it's possible because you have multiple concurrent copy activities runs or applications writing to the same file '%name;'. Please check your ADF configuration and retry.

  • Cause: Multiple concurrent writing requests occur, which causes conflicts on file content.

Error code: AzureBlobFailedToCreateContainer

  • Message: Unable to create Azure Blob container. Endpoint: '%endpoint;', Container Name: '%containerName;'.

  • Cause: This error happens when copying data with Azure Blob Storage account public access.

  • Recommendation: For more information about connection errors in the public endpoint, see Connection error in public endpoint.

Related content

For more troubleshooting help, try these resources: