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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
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Hi
Taranjeet Malik •,
Welcome to Microsoft Q&A forum.
I am checking on the ask internally and get back to you.
Thanks
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.
Thanks for pointing me to the latest version - can you please clarify the original question. Does the CosmosDB Data Migration Desktop tool supports incremental / delta sync?
We don't want to overwrite the existing data. What we need is to only sync the data that has changed from last time the tool was run, so only incremental / delta changes can be carried over. Due to the size of some of the databases, it's not practical to re-write the whole DB every time the source changes.
Thanks
Taranjeet Singh
Hi Taranjeet Malik •,
I am checking internally on the question, thanks.
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