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fix(kopiur): snapshot daily instead of hourly - #6089
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Retention only keeps daily and weekly snapshots, so 23 of every 24 hourly uploads were pruned and garbage-collected. SQLite databases (qui, sonarr, qbittorrent, home-assistant, autobrr) re-upload most of their chunks each run, which produced ~500GB/month of pack churn in B2. Signed-off-by: Jordan Jones <git@svcs.ok8.sh>
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Summary
Changes the shared kopiur
SnapshotSchedulecron fromH * * * *(hourly) toH H * * *(once a day, at a per-app hashed hour and minute).Why
The
puddle-kopiurB2 bucket reached 1.24 TB while the live repository is ~124 GB. Kopia was uploading ~500 GB/month of packs that maintenance deleted again within days (median pack lifetime 4 days).Retention is
keepDaily: 14/keepWeekly: 4, so 23 of every 24 hourly snapshots were pruned and their unique content garbage-collected. SQLite databases rewrite pages throughout the file, so most of their ~2 MB chunks were new on every run. Measured new data per hourly run:qui.dbsonarr.dbtorrents.dbhome-assistant_v2.dbautobrr.dbAll other apps were under 30 MB per run.
Daily snapshots keep the same retained restore points and should cut upload churn by roughly 20x. Kopiur supports
Hin the hour field (crates/api/src/jitter.rs, range 0-23).The hidden-version backlog is handled separately by a B2 lifecycle rule (
daysFromHidingToDeleting: 3), set on the bucket outside GitOps.