when the insert data at 1 GB on the server first, and then I turn on the server 2, whether the second server capacity also decreased by 1 GB because the replica data from one server?
You have loaded 1 GB of data into a single node Aerospike cluster. When you add the second node to the cluster, migration will be triggered transferring data from the first node to the second node. Assuming replication factor 2 then the amount of data on each node will be 1GB, if replication factor 1 then the amount of data on each node will be about 0.5GB.
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