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pythoncassandra
Felix
Felix

Reputation: 3591

How to read and write large amounts of data to Cassandra DB?

I have a client application that connects to two or more Cassandra DB servers -- and has to copy some tables from one server to another.

What is the best way to copy big amounts of Cassandra data, especially using Python?

Upvotes: 1

Views: 58

Answers (1)

Aaron
Aaron

Reputation: 57798

The best way? From one cluster to another?

You'll probably want to use DSBulk for that. Unfortunately, there really isn't a good programatic solution to reading/writing large amounts of data between clusters.

DSBulk, on the other hand, was designed to handle that. In this case, you'll run a dsbulk unload from a cluster/keyspace/table combination out to a file. Then, you'll run a dsbulk load on that file, sending it to the new cluster/keyspace/table. Give the docs a look for details on how to run it.

Upvotes: 2

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