However, when the db program exits abnormally, Cleaner may cause the SSTable that needs to be deleted to be lost (because there is no persistence), so it may no longer process the SSTable that should be deleted after restarting.
I think Cleaner can persist this part of information to ensure that unnecessary SSTables can still be cleared after an abnormal restart.
Feature Request
https://github.com/tonbo-io/tonbo/blob/main/src/version/cleaner.rs
Cleanerwill record the newly added and deletedSSTablesafter each compaction, and delete theSSTablesthat are no longer needed after the relevant transaction is destroyed.However, when the db program exits abnormally, Cleaner may cause the
SSTablethat needs to be deleted to be lost (because there is no persistence), so it may no longer process theSSTablethat should be deleted after restarting.I think
Cleanercan persist this part of information to ensure that unnecessarySSTablescan still be cleared after an abnormal restart.