alt Hacker NewsIf the corruption is detectable and infrequent enough for your purposes, then it does work, with a simple “retry until success” loop. (That’s how TCP works, for example.)
If the corruption is detectable and infrequent enough for your purposes, then it does work, with a simple “retry until success” loop. (That’s how TCP works, for example.)
Not all corruption is detectable. You could make a copy during a transaction where only a subset of the transactions saved pages are persisted but all branch & leaf pages are pointed to correctly. That would give you a state of the database that never actually existed and break atomicity.