MinAgent UNCHANGED — degrades gracefully against ANY older agent.
The agent gained per-target tiers in v0.97.0. The controller owns quiescing,
so the multi-tier schedule is reconciled here: every due tier is collected up
front and run inside ONE quiesce window (one stop, N sequential backups, one
resume). Two cycles on the weekly night would mean two app outages for one
night's work.
Dedup rule: local-only -> one quiesce; PBS-only -> one quiesce; BOTH due ->
ONE window with both backups inside; neither -> no quiesce.
- quiesce.TieredBackend + BackupTier + ErrTiersUnsupported (optional extension)
- agentapi: BackupTiers/BackupDueFor/StartBackupFor/BackupStatusFor;
targetQuery("") yields an EMPTY suffix so untargeted hits the pre-R-82 route
byte-for-byte
- Loop.resolveDueTiers = the dedup rule in one place, agent order preserved
- quiesceAndPollTiers + pollTier: app stays quiesced until the LAST tier
snapshots (resuming earlier loses app-consistency on the DR tier). Consequence
stated in the docs: both-due-night downtime = first tier's full backup + last
tier's snapshot, which is why tiers run fast-first.
- Manual 'Mentes most' covers EVERY tier, due-ness ignored.
- Window-gate safety valve now uses the OLDEST due tier, so a stale DR tier
cannot be starved by a fresher local one.
Capability detection: /backup/tiers 404 = pre-R-82 agent (the documented
route-probe mechanism). Not a featureProbes row on purpose — the loop needs the
tier LIST, not a yes/no. Degrade logged exactly once per process.
Tests +11, full suite green. Red-proofs #2 and #3 observed and restored.
ONE setting (window start W) drives every nightly leg at fixed, never-stored
offsets: DB dump at W, tier-2 at W+60m, off-box at W+105m (wrap-safe). Precedence
settings > controller.yaml db_dump_schedule > 02:30.
- scheduler.UpdateDaily: retime a daily job at runtime (no restart) via a per-job
buffered resched chan + a select case in runDailyJob.
- new pure package internal/backupwindow (LegTimes/GateWindow/EffectiveWindow).
- quiesce disk-tier window gate: scheduled cycles run only inside [W+2h,W+6h) with a
safety valve (age>cadence+24h runs regardless); manual TriggerNow never gated.
Backend.Due now also returns the backup age (from the agent's own /backup/due).
- backup page: Mentési időablak card (time input + derived leg/gate rows); POST
/backups/window validates -> saves -> UpdateDaily x3 -> flash.
Tests: 5 groups, all red-proofed. Agent/cadence//backup/due untouched.
Part 2 of the USB/backup spec. agentapi: StatusResponse.Backup record, DueResponse
age_seconds, RestoreTestStatus(). New "Rendszermentés (teljes mentés)" section
(read-only: last backup/target PBS-vs-local/next-due/restore-test) + "Mentés most"
manual trigger that goes through the quiesce loop (controller owns quiescing):
quiesce.Loop gains mutex + TriggerNow() (single-flight, async). New
/api/guest-backup/{trigger,status} (distinct from apiRouter's /api/backup/*).
App-data rows relabeled under an "Alkalmazás-mentések" divider. Config → slice 10.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Quiesce loop resumes (StartStack + clear marker) at the snapshotted phase
instead of done -> downtime whole-backup -> until-snapshot, no consistency loss.
Keeps polling to done/failed (no overlapping backup; post-snapshot failure
observed). Stop-mode fallback to done + crash-safety preserved.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude Code
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