I know Transaction has several commit modes. Among them commitWriteNoSync() is my favourite.
But when I do single put, txn handle seems unnessesary. I want to know:
1, If I skip txn handle, what is the 'common' usage pattern for sync? What does it mean?
2, If I really want commitWriteNoSync(), how do I do it?
I found the answer myself. In EnvironmentConfig there is something called Durability. That's the new hideout used by commit modes.