Common start for both pause and resume.

This hook checks if a given remote path is valid i.e.

This hook is used to download the index definitions and source partitions metadata from the remote object store, to be used when unhibernating.

This hook is used to obtain the bucket and path in remote object storage, used when checking if a remote path exists.

This hook is used to upload the index definitions and source partitions metadata to the remote object store, to be used when hibernating.

HibernationProgress represents progress status information as the Pause/Resume() operation proceeds.

A Manager struct holds all the tracking information for the pause/resume (hibernation) operations.