[Remote Store] Add upload timestamp to metada file to be used in conflict resolution #5475
Description
Is your feature request related to a problem? Please describe.
- Currently, we store metadata file in the remote store with:
metadata__<Primary Term>__<Generation>__<UUID>. - Primary term and generation are used to compare 2 metadata files and to get the latest one.
- But in some cases like primary - primary recovery, primary term and generation will be same.
- For this, we use UUID based comparison to have random but consistent way of resolving conflicts.
- As we are adding support for refresh level durability, it is important to get the latest uploaded metadata file.
- We can't just add timestamp in the filename as it will result in too many metadata files.
- The initial approach we are thinking of is to add timestamp info in the contents of metadata file.