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CosmosDB Data Migration Tool - Does that support Delta updates?

Taranjeet Malik 636 Reputation points
2024-02-28T03:33:13.1466667+00:00

Hi there

Can someone please confirm if Azure CosmosDB Data Migration Tool (https://github.com/Azure/azure-documentdb-datamigrationtool/releases/tag/1.8.3) supports delta updates, i.e., what happens when we re-run the tool to import into a target collection that already contains some of the records. Will it wipe them off and try to re-write them or only tries to write the newer ones (updates) from the source ? Thanks Taranjeet Singh

Azure Cosmos DB
Azure Cosmos DB

An Azure NoSQL database service for app development.

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  1. SSingh-MSFT 16,461 Reputation points Moderator
    2024-03-28T07:41:38.71+00:00

    Hi Taranjeet Malik •,

    Thanks for your patience.

    I have got the below reply from the internal team.

    This tool referring to is no longer supported as it has been retired for at least a couple of years now.

     

    Customers are directed to use this version which is available on GitHub as an open source tool supported by our community.

    https://github.com/AzureCosmosDB/data-migration-desktop-tool

     

    The tool does support inserts or update modes. There are examples for each source and sink module customers should be able to refer to.

    Thanks

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  2. Sajeetharan 2,261 Reputation points Microsoft Employee
    2024-03-02T05:16:59.08+00:00

    You are using the old version of data migration tool which is archived. You can download the latest version here

    Also, you can set the WriteMode to Upsert to overwrite the data.

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