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prashanth.talla_175363 asked smadhavan answered

Migrate on-prem Cassandra to GCP

Hi - Can anyone share their experience with migrating on-prem Cassandra to GCP? What are the steps involved besides establishing a dedicated interconnect and known pain points? What tools are used in migrating the data model and data? Any references to read through?

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smadhavan answered

@prashanth.talla_175363 if you've already figured out the networking between the on-premise datacenter (DC) and the datacenter (DC) on the GCP, it is no different than adding a datacenter to the existing cluster so there would be 2 DCs. The data would be automatically replicated by the internal Cassandra replication when you do the rebuild. Just ensure that the source datacenter can handle the load of the replication plus the actual workload until your application is switched over to contact the GCP datacenter. We could finally decommission the on-premise datacenter once the switch has happened. Hope that helps you to start planning.

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