Resharding: S3-mediated space migration between tree nodes - #227

Merged

cheggaaa merged 17 commits into

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Aug 6, 2026

Commits on Jul 4, 2026

feat(nodestorage): disk generation marker for fresh-storage detection

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feat(archive): S3 migration engine — ForceArchive, server-side transfer, AdoptArchive RPC

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feat(resharder): drain state machine + deletion tombstone fixes

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feat(archive): prefix sweeper + unindexed-dir reconciliation

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docs: resharding plan + manual e2e runbook

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fix(archivestore): list-based Exists (GCS interop serves stale HEAD) + real-S3 tests

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fix(resharding): close data-loss paths found by review

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feat(resharder): add/remove-node scenario tests + operator guide

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feat(metrics): resharding state gauges

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chore: bump any-sync to resharding branch (swap for tagged release before merge)

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docs: correct the client-behavior claim in the plan (verified against client code)

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Commits on Jul 6, 2026

feat(resharder): skip drain cycles for tree-membership-preserving config changes

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docs: first-deployment preparation checklist in the operator guide

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fix(adopter): never adopt over an Error-status entry

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feat(repairer): self-healing loop for Error-status spaces

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feat(repairer): garbage-collect entries of spaces that never existed anywhere

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test(repairer): e2e repair flows over real coldsync

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