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fix(sse): back the CCR block store with a durable tier (#9061) (#9198)

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Validated in post-merge-train sweep (boards clean on release/v3.8.50 tip)
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Fajar Hidayat
2026-08-06 21:07:28 +07:00
committed by GitHub
parent ece486dc38
commit 8e27f5ec8d
8 changed files with 547 additions and 3 deletions
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docs/reference/ENVIRONMENT.md
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@@ -454,6 +454,7 @@ detection above).
| `COMPRESSION_PIPELINE_BREAKER_THRESHOLD` | `3` | `open-sse/services/compression/pipelineEngineBreaker.ts` | Consecutive cross-request failures before an engine's breaker opens. |
| `COMPRESSION_PIPELINE_BREAKER_COOLDOWN_MS` | `30000` | `open-sse/services/compression/pipelineEngineBreaker.ts` | Milliseconds an opened engine stays skipped before a half-open probe. |
| `COMPRESSION_CCR_RETRIEVAL_RAMP_FACTOR` | `2` | `open-sse/services/compression/engines/ccr/index.ts` | T08/H8 CCR retrieval-feedback ramp: each prior retrieval of a stored block raises its effective `minChars` linearly (frequently-retrieved content compresses less; `>=3` retrievals = never compressed). `1` disables the ramp (binary skip at the threshold only). |
| `COMPRESSION_CCR_DURABLE_STORE` | `true` | `open-sse/services/compression/engines/ccr/index.ts` | CCR durable block store (#9061). Backs the in-memory store with SQLite so a block survives LRU eviction, the TTL, a restart, or a retrieve landing on another instance. Set `false` to keep blocks in memory only. Blocks over 512KB and cloud runtimes stay memory-only regardless. |
| `COMPRESSION_PREFIX_FREEZE_ENABLED` | `false` | `open-sse/services/compression/prefixFreeze.ts` | T08/H5 usage-observed prefix freeze master switch. **Opt-in (default off)** — when on, a system prompt observed `>=` the threshold is treated as a stable cacheable prefix and preserved from compression even for providers the static cache heuristic misses (freeze only *preserves*, never mutates). |
| `COMPRESSION_PREFIX_FREEZE_THRESHOLD` | `3` | `open-sse/services/compression/prefixFreeze.ts` | Observations of a system prompt before it is treated as a frozen stable prefix. |
| `OMNIROUTE_BOOTSTRAPPED` | `false` | `src/app/(dashboard)/dashboard/page.tsx` | Set `true` by bootstrap script after initial setup. Controls setup wizard visibility. |