Epic: Phase 3 — ES Primary Read/Write #165

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opened 2026-03-15 23:08:38 +00:00 by freemo · 0 comments

freemo commented

2026-03-15 23:08:38 +00:00

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Background and Context

In Phase 3, game reads are served from ES projection read models instead of GDBM. GDBM becomes a best-effort secondary that is written to for backward compatibility but never read from during normal operation. This requires a ProjectionReadModel query layer and switching Gary/CacheGary to read from projections.

Demonstrable Outcome

The game operates with reads from ES projections. GDBM is written but not read. Full world state verified consistent.

Acceptance Criteria

ProjectionReadModel query layer serves object lookups
Gary/CacheGary read from projections in :primary mode
:primary write mode implemented (ES first, GDBM best-effort)

## Background and Context In Phase 3, game reads are served from ES projection read models instead of GDBM. GDBM becomes a best-effort secondary that is written to for backward compatibility but never read from during normal operation. This requires a `ProjectionReadModel` query layer and switching `Gary`/`CacheGary` to read from projections. ## Demonstrable Outcome The game operates with reads from ES projections. GDBM is written but not read. Full world state verified consistent. ## Acceptance Criteria - `ProjectionReadModel` query layer serves object lookups - `Gary`/`CacheGary` read from projections in `:primary` mode - `:primary` write mode implemented (ES first, GDBM best-effort)