Problem
Every automatic pass costs two GETs and a full stat walk of the vault, including the overwhelming majority that find nothing changed on either side. At the current five minute poll that is affordable on a desktop. It stops being affordable on a phone, where it is battery and cellular data spent to learn nothing.
Behaviour
HEAD the manifest and compare the ETag against the last completed pass- When it matches and no vault event has fired since, abandon the pass before taking a snapshot
- Drop
POLL_INTERVAL_MS to 60 seconds, which the cheaper tick makes affordable
- Add a full reconcile every 30 minutes that ignores the probe, since a watcher trusted absolutely is a watcher that will eventually lose a file
headObject already exists on StorageClient. The sentinel is written once and never rewritten, so it is never what changed.
Problem
Every automatic pass costs two GETs and a full stat walk of the vault, including the overwhelming majority that find nothing changed on either side. At the current five minute poll that is affordable on a desktop. It stops being affordable on a phone, where it is battery and cellular data spent to learn nothing.
Behaviour
HEADthe manifest and compare the ETag against the last completed passPOLL_INTERVAL_MSto 60 seconds, which the cheaper tick makes affordableheadObjectalready exists onStorageClient. The sentinel is written once and never rewritten, so it is never what changed.