Alan-Jowett / sonde / 25563886539

83%

Build Type

push

github

Committed by web-flow

Commit Message

Refactor Azure handler to use append-only actual and desired state history (#862)

* refactor(azure-handler): switch node reconciliation to append-only history tables

Replace the mutable NodeState model with append-only ActualNodeState and DesiredNodeState history tables. Record every GW-0812 check-in as history, read the latest desired-state row without writing desired history from the handler, and suppress stale control decisions by comparing the appended row with the latest actual-state row.

Update the Azure handler requirements, design, and validation specs for reverse-tick latest-row lookups, admin-owned desired-state history, and out-of-order actual-state retention. Refactor the crate store API and Azure Tables implementation to match the new model, add durable row-key tie-breakers, and expand unit coverage for divergence, duplicates, stale deliveries, and storage failures.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* style(azure-handler): apply rustfmt

Align \sonde-azure-handler\ with workspace rustfmt output after the append-only history-table refactor.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* fix(azure-handler): harden history row key suffix

Add a per-process random nonce to actual-state history row keys and use the monotonic sequence counter as the within-process ordering tie-breaker. This preserves newest-first ordering for same-timestamp appends while avoiding collisions across Azure Function restarts or parallel instances.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Handle equal-timestamp Azure state rows

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Signed-off-by: Alan Jowett <alan.jowett@microsoft.com>

* Clarify Azure history row-key ordering

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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