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// TBD

Risks and assumptions

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• Background re-encryption can affect performance.
• The WAL history (for delta rebalancing) may be lost for all cache groups due to background re-encryption.

Copy with re-encryption design.

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If a node crashes during the replacement of the partitions, the original backup copies of the partitions are restored when the node starts.
If major topology changes during key rotation - cancelling whole procedure.
Minor topology changes should not affect re-encryption procedure.
If the partition is scheduled for eviction during re-encryption, cancel the re-encryption of this partition.

Risks and assumptions

Re-encryption is a very long process that may never end due to a restriction on the stability of the major topology (if the topology changes the process starts from the beginning).

Process management

// TBD

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