CODEWITHSUNDEEP
cassandra
pavs
pavs

Reputation: 141

Migrate data from Cassandra cluster to single machine

cluster data size I have a cassandra cluster(four nodes) on four machines with data size of 745.54 GiB ,670.79 GiB ,695.65 GiB ,634.43 GiB of each node.I need to migrate all the data to single machine with single node .I have all keyspaces with replication factor of 3 and i need to change the replication factor as 1.I didn't find any solution anywhere, Somebody tell me how to migrate this cluster to single machine.

Upvotes: 0

Views: 104

Answers (1)

Alex Tbk
Alex Tbk

Reputation: 2104

You need to take a snapshot:

https://docs.datastax.com/en/cassandra/3.0/cassandra/tools/toolsSnapShot.html

For example a single table snapshot:

nodetool snapshot --table cyclist_name cycling

The restore process is documented here: https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsBackupSnapshotRestore.html

Upvotes: 1

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